The Experts below are selected from a list of 5028 Experts worldwide ranked by ideXlab platform
He Liu - One of the best experts on this subject based on the ideXlab platform.
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Finite element analysis for adhesive failure of Progressive Cavity pump with stator of even thickness
Journal of Petroleum Science and Engineering, 2014Co-Authors: Jie Chen, Fengshan Wang, Guocheng Shi, Gang Cao, He Yan, Ge Weitao, He LiuAbstract:Abstract Compared to conventional Progressive Cavity pump (PCP), even thickness PCP has numerous advantages such as uniform thermal and swelling expansion, stable operation and high volumetric efficiency. However, adhesive failure occurs on the stator of even thickness PCP more often in actual working conditions, which limits its development and application. In this study, finite element models of conventional PCP and even thickness PCP with the same structural parameters are established and simulated to find the mechanism for adhesive failure. We primarily study the force conditions of adhesive interface which bonds the stator and cylinder sleeve. The results show that shear strain caused by hydraulic pressure difference and interference displacement is quite large around the adhesive interface of even thickness PCP. The too large shear strain around the adhesive interface is the main cause of adhesive failure. Based on this analysis, the relationship between the shear strain and design parameters, such as the rubber adhesion ratio, pressure difference, elastic modulus of stator, magnitude of interference and wall thickness, is investigated. Our results show that the shear strain increases greatly and adhesive failure tends to occur in certain conditions. Furthermore, two new techniques to enhance the adhesive performance are presented and validated with our finite element analysis. Our research can be of great significance for guiding the design and optimization of even thickness PCPs.
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Optimization Design of Progressive Cavity Pumps via Finite Element Simulations With a Fluid-Solid Interaction Model
SPE Artificial Lift Conference & Exhibition-North America, 2014Co-Authors: Jie Chen, Fengshan Wang, Guocheng Shi, Gang Cao, He Yan, He Liu, Yanan Sun, Chunlong Sun, Ge WeitaoAbstract:Progressive Cavity pumps (PCPs) have been widely used as an artificial lifting device in various oilfield productions due to their numerous advantages. However, there still exist some problems during the practical application. In order to improve the performance and promote the application, it is of great significance to optimize the design of PCPs. Since the laboratory experiment costs large amounts of money and time, the finite element simulation is an alternative method.
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numerical prediction on volumetric efficiency of Progressive Cavity pump with fluid solid interaction model
Journal of Petroleum Science and Engineering, 2013Co-Authors: Jie Chen, Fengshan Wang, Guocheng Shi, He Liu, Gang CaoAbstract:Abstract Surface-driven Progressive Cavity pump (PCP) has been widely used as an effective artificial lift equipment in various oilfield productions. During the operation of PCPs, the problem of internal slip, which defines the pump performance in terms of volumetric efficiency and lifting capacity, always occurs. However, due to the complex geometrical structure and coupling interactions between the stator and the oil lifted, it is difficult to solve the volumetric efficiency analytically. In this study, we established a new finite element model of PCP, which consists of the stator, the rotor, the lifted fluid and the fluid–solid interaction. The controlling equations of solid deformation and fluid dynamics are solved using different solvers for solid domain and fluid domain respectively, and their results are exchanged through the fluid–solid interface. Partitioned solution algorithm is employed to tackle the problem of this two-way fluid–solid interaction. From our numerical simulation results, we found two leakage mechanisms: longitudinal slippage and transversal slippage. We took GLB500 PCP as a benchmark to validate our model and simulation method. Our computed volumetric efficiency of PCP with specified design parameters is consistent with experimental result of laboratory test. Furthermore, the model with fluid–structure interaction was used to compare the hydraulic characteristic curves of conventional and even-thickness PCPs and study the influence of different material and structure parameters on internal slip of PCP. The interference and stator thickness are found to be the two main factors influencing the volumetric efficiency, which can be used to optimize the design of PCP for specified purpose.
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Three dimensional dynamics simulation of Progressive Cavity pump with stator of even thickness
Journal of Petroleum Science and Engineering, 2013Co-Authors: X.z. Zhou, Guocheng Shi, He Yan, Chunlong Sun, Guangqiang Cao, He LiuAbstract:Abstract Surface-driving Progressive Cavity pump (PCP) has been widely used as an effective artificial lifting device in various oil field productions. However, non-uniform thermal and swelling expansion results in high laden torque of conventional PCP. New PCP with stator of even-thickness is a good alternative. To design and optimize even-thickness PCP, three-dimensional finite element simulation is employed to study the dynamics of the system of stator and rotor. Our computed laden torque for the given design parameters is in good agreement with the experimental result of laboratory test, which can verify our model and the simulation method. The relationship between the laden torque and the design parameters, such as wall thickness, magnitude of interference, rotational speed and eccentricity, is investigated. Our results show that the laden torque of even-thickness PCP is significantly reduced. The magnitude of interference and the thickness of stator are the two main factors that influence the laden torque. Our fitted quadratic function can calculate the laden torque due to interference more accurately than traditional linear function. Our work can be of great significance for guiding the design and optimization of new PCP.
Jie Chen - One of the best experts on this subject based on the ideXlab platform.
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Finite element analysis for adhesive failure of Progressive Cavity pump with stator of even thickness
Journal of Petroleum Science and Engineering, 2014Co-Authors: Jie Chen, Fengshan Wang, Guocheng Shi, Gang Cao, He Yan, Ge Weitao, He LiuAbstract:Abstract Compared to conventional Progressive Cavity pump (PCP), even thickness PCP has numerous advantages such as uniform thermal and swelling expansion, stable operation and high volumetric efficiency. However, adhesive failure occurs on the stator of even thickness PCP more often in actual working conditions, which limits its development and application. In this study, finite element models of conventional PCP and even thickness PCP with the same structural parameters are established and simulated to find the mechanism for adhesive failure. We primarily study the force conditions of adhesive interface which bonds the stator and cylinder sleeve. The results show that shear strain caused by hydraulic pressure difference and interference displacement is quite large around the adhesive interface of even thickness PCP. The too large shear strain around the adhesive interface is the main cause of adhesive failure. Based on this analysis, the relationship between the shear strain and design parameters, such as the rubber adhesion ratio, pressure difference, elastic modulus of stator, magnitude of interference and wall thickness, is investigated. Our results show that the shear strain increases greatly and adhesive failure tends to occur in certain conditions. Furthermore, two new techniques to enhance the adhesive performance are presented and validated with our finite element analysis. Our research can be of great significance for guiding the design and optimization of even thickness PCPs.
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Optimization Design of Progressive Cavity Pumps via Finite Element Simulations With a Fluid-Solid Interaction Model
SPE Artificial Lift Conference & Exhibition-North America, 2014Co-Authors: Jie Chen, Fengshan Wang, Guocheng Shi, Gang Cao, He Yan, He Liu, Yanan Sun, Chunlong Sun, Ge WeitaoAbstract:Progressive Cavity pumps (PCPs) have been widely used as an artificial lifting device in various oilfield productions due to their numerous advantages. However, there still exist some problems during the practical application. In order to improve the performance and promote the application, it is of great significance to optimize the design of PCPs. Since the laboratory experiment costs large amounts of money and time, the finite element simulation is an alternative method.
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Numerical prediction on volumetric efficiency of Progressive Cavity pump with fluid–solid interaction model
Journal of Petroleum Science and Engineering, 2013Co-Authors: Jie Chen, Fengshan Wang, Hengan WuAbstract:Abstract Surface-driven Progressive Cavity pump (PCP) has been widely used as an effective artificial lift equipment in various oilfield productions. During the operation of PCPs, the problem of internal slip, which defines the pump performance in terms of volumetric efficiency and lifting capacity, always occurs. However, due to the complex geometrical structure and coupling interactions between the stator and the oil lifted, it is difficult to solve the volumetric efficiency analytically. In this study, we established a new finite element model of PCP, which consists of the stator, the rotor, the lifted fluid and the fluid–solid interaction. The controlling equations of solid deformation and fluid dynamics are solved using different solvers for solid domain and fluid domain respectively, and their results are exchanged through the fluid–solid interface. Partitioned solution algorithm is employed to tackle the problem of this two-way fluid–solid interaction. From our numerical simulation results, we found two leakage mechanisms: longitudinal slippage and transversal slippage. We took GLB500 PCP as a benchmark to validate our model and simulation method. Our computed volumetric efficiency of PCP with specified design parameters is consistent with experimental result of laboratory test. Furthermore, the model with fluid–structure interaction was used to compare the hydraulic characteristic curves of conventional and even-thickness PCPs and study the influence of different material and structure parameters on internal slip of PCP. The interference and stator thickness are found to be the two main factors influencing the volumetric efficiency, which can be used to optimize the design of PCP for specified purpose.
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numerical prediction on volumetric efficiency of Progressive Cavity pump with fluid solid interaction model
Journal of Petroleum Science and Engineering, 2013Co-Authors: Jie Chen, Fengshan Wang, Guocheng Shi, He Liu, Gang CaoAbstract:Abstract Surface-driven Progressive Cavity pump (PCP) has been widely used as an effective artificial lift equipment in various oilfield productions. During the operation of PCPs, the problem of internal slip, which defines the pump performance in terms of volumetric efficiency and lifting capacity, always occurs. However, due to the complex geometrical structure and coupling interactions between the stator and the oil lifted, it is difficult to solve the volumetric efficiency analytically. In this study, we established a new finite element model of PCP, which consists of the stator, the rotor, the lifted fluid and the fluid–solid interaction. The controlling equations of solid deformation and fluid dynamics are solved using different solvers for solid domain and fluid domain respectively, and their results are exchanged through the fluid–solid interface. Partitioned solution algorithm is employed to tackle the problem of this two-way fluid–solid interaction. From our numerical simulation results, we found two leakage mechanisms: longitudinal slippage and transversal slippage. We took GLB500 PCP as a benchmark to validate our model and simulation method. Our computed volumetric efficiency of PCP with specified design parameters is consistent with experimental result of laboratory test. Furthermore, the model with fluid–structure interaction was used to compare the hydraulic characteristic curves of conventional and even-thickness PCPs and study the influence of different material and structure parameters on internal slip of PCP. The interference and stator thickness are found to be the two main factors influencing the volumetric efficiency, which can be used to optimize the design of PCP for specified purpose.
Gang Cao - One of the best experts on this subject based on the ideXlab platform.
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Finite element analysis for adhesive failure of Progressive Cavity pump with stator of even thickness
Journal of Petroleum Science and Engineering, 2014Co-Authors: Jie Chen, Fengshan Wang, Guocheng Shi, Gang Cao, He Yan, Ge Weitao, He LiuAbstract:Abstract Compared to conventional Progressive Cavity pump (PCP), even thickness PCP has numerous advantages such as uniform thermal and swelling expansion, stable operation and high volumetric efficiency. However, adhesive failure occurs on the stator of even thickness PCP more often in actual working conditions, which limits its development and application. In this study, finite element models of conventional PCP and even thickness PCP with the same structural parameters are established and simulated to find the mechanism for adhesive failure. We primarily study the force conditions of adhesive interface which bonds the stator and cylinder sleeve. The results show that shear strain caused by hydraulic pressure difference and interference displacement is quite large around the adhesive interface of even thickness PCP. The too large shear strain around the adhesive interface is the main cause of adhesive failure. Based on this analysis, the relationship between the shear strain and design parameters, such as the rubber adhesion ratio, pressure difference, elastic modulus of stator, magnitude of interference and wall thickness, is investigated. Our results show that the shear strain increases greatly and adhesive failure tends to occur in certain conditions. Furthermore, two new techniques to enhance the adhesive performance are presented and validated with our finite element analysis. Our research can be of great significance for guiding the design and optimization of even thickness PCPs.
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Optimization Design of Progressive Cavity Pumps via Finite Element Simulations With a Fluid-Solid Interaction Model
SPE Artificial Lift Conference & Exhibition-North America, 2014Co-Authors: Jie Chen, Fengshan Wang, Guocheng Shi, Gang Cao, He Yan, He Liu, Yanan Sun, Chunlong Sun, Ge WeitaoAbstract:Progressive Cavity pumps (PCPs) have been widely used as an artificial lifting device in various oilfield productions due to their numerous advantages. However, there still exist some problems during the practical application. In order to improve the performance and promote the application, it is of great significance to optimize the design of PCPs. Since the laboratory experiment costs large amounts of money and time, the finite element simulation is an alternative method.
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numerical prediction on volumetric efficiency of Progressive Cavity pump with fluid solid interaction model
Journal of Petroleum Science and Engineering, 2013Co-Authors: Jie Chen, Fengshan Wang, Guocheng Shi, He Liu, Gang CaoAbstract:Abstract Surface-driven Progressive Cavity pump (PCP) has been widely used as an effective artificial lift equipment in various oilfield productions. During the operation of PCPs, the problem of internal slip, which defines the pump performance in terms of volumetric efficiency and lifting capacity, always occurs. However, due to the complex geometrical structure and coupling interactions between the stator and the oil lifted, it is difficult to solve the volumetric efficiency analytically. In this study, we established a new finite element model of PCP, which consists of the stator, the rotor, the lifted fluid and the fluid–solid interaction. The controlling equations of solid deformation and fluid dynamics are solved using different solvers for solid domain and fluid domain respectively, and their results are exchanged through the fluid–solid interface. Partitioned solution algorithm is employed to tackle the problem of this two-way fluid–solid interaction. From our numerical simulation results, we found two leakage mechanisms: longitudinal slippage and transversal slippage. We took GLB500 PCP as a benchmark to validate our model and simulation method. Our computed volumetric efficiency of PCP with specified design parameters is consistent with experimental result of laboratory test. Furthermore, the model with fluid–structure interaction was used to compare the hydraulic characteristic curves of conventional and even-thickness PCPs and study the influence of different material and structure parameters on internal slip of PCP. The interference and stator thickness are found to be the two main factors influencing the volumetric efficiency, which can be used to optimize the design of PCP for specified purpose.
Fengshan Wang - One of the best experts on this subject based on the ideXlab platform.
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Finite element analysis for adhesive failure of Progressive Cavity pump with stator of even thickness
Journal of Petroleum Science and Engineering, 2014Co-Authors: Jie Chen, Fengshan Wang, Guocheng Shi, Gang Cao, He Yan, Ge Weitao, He LiuAbstract:Abstract Compared to conventional Progressive Cavity pump (PCP), even thickness PCP has numerous advantages such as uniform thermal and swelling expansion, stable operation and high volumetric efficiency. However, adhesive failure occurs on the stator of even thickness PCP more often in actual working conditions, which limits its development and application. In this study, finite element models of conventional PCP and even thickness PCP with the same structural parameters are established and simulated to find the mechanism for adhesive failure. We primarily study the force conditions of adhesive interface which bonds the stator and cylinder sleeve. The results show that shear strain caused by hydraulic pressure difference and interference displacement is quite large around the adhesive interface of even thickness PCP. The too large shear strain around the adhesive interface is the main cause of adhesive failure. Based on this analysis, the relationship between the shear strain and design parameters, such as the rubber adhesion ratio, pressure difference, elastic modulus of stator, magnitude of interference and wall thickness, is investigated. Our results show that the shear strain increases greatly and adhesive failure tends to occur in certain conditions. Furthermore, two new techniques to enhance the adhesive performance are presented and validated with our finite element analysis. Our research can be of great significance for guiding the design and optimization of even thickness PCPs.
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Optimization Design of Progressive Cavity Pumps via Finite Element Simulations With a Fluid-Solid Interaction Model
SPE Artificial Lift Conference & Exhibition-North America, 2014Co-Authors: Jie Chen, Fengshan Wang, Guocheng Shi, Gang Cao, He Yan, He Liu, Yanan Sun, Chunlong Sun, Ge WeitaoAbstract:Progressive Cavity pumps (PCPs) have been widely used as an artificial lifting device in various oilfield productions due to their numerous advantages. However, there still exist some problems during the practical application. In order to improve the performance and promote the application, it is of great significance to optimize the design of PCPs. Since the laboratory experiment costs large amounts of money and time, the finite element simulation is an alternative method.
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Numerical prediction on volumetric efficiency of Progressive Cavity pump with fluid–solid interaction model
Journal of Petroleum Science and Engineering, 2013Co-Authors: Jie Chen, Fengshan Wang, Hengan WuAbstract:Abstract Surface-driven Progressive Cavity pump (PCP) has been widely used as an effective artificial lift equipment in various oilfield productions. During the operation of PCPs, the problem of internal slip, which defines the pump performance in terms of volumetric efficiency and lifting capacity, always occurs. However, due to the complex geometrical structure and coupling interactions between the stator and the oil lifted, it is difficult to solve the volumetric efficiency analytically. In this study, we established a new finite element model of PCP, which consists of the stator, the rotor, the lifted fluid and the fluid–solid interaction. The controlling equations of solid deformation and fluid dynamics are solved using different solvers for solid domain and fluid domain respectively, and their results are exchanged through the fluid–solid interface. Partitioned solution algorithm is employed to tackle the problem of this two-way fluid–solid interaction. From our numerical simulation results, we found two leakage mechanisms: longitudinal slippage and transversal slippage. We took GLB500 PCP as a benchmark to validate our model and simulation method. Our computed volumetric efficiency of PCP with specified design parameters is consistent with experimental result of laboratory test. Furthermore, the model with fluid–structure interaction was used to compare the hydraulic characteristic curves of conventional and even-thickness PCPs and study the influence of different material and structure parameters on internal slip of PCP. The interference and stator thickness are found to be the two main factors influencing the volumetric efficiency, which can be used to optimize the design of PCP for specified purpose.
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numerical prediction on volumetric efficiency of Progressive Cavity pump with fluid solid interaction model
Journal of Petroleum Science and Engineering, 2013Co-Authors: Jie Chen, Fengshan Wang, Guocheng Shi, He Liu, Gang CaoAbstract:Abstract Surface-driven Progressive Cavity pump (PCP) has been widely used as an effective artificial lift equipment in various oilfield productions. During the operation of PCPs, the problem of internal slip, which defines the pump performance in terms of volumetric efficiency and lifting capacity, always occurs. However, due to the complex geometrical structure and coupling interactions between the stator and the oil lifted, it is difficult to solve the volumetric efficiency analytically. In this study, we established a new finite element model of PCP, which consists of the stator, the rotor, the lifted fluid and the fluid–solid interaction. The controlling equations of solid deformation and fluid dynamics are solved using different solvers for solid domain and fluid domain respectively, and their results are exchanged through the fluid–solid interface. Partitioned solution algorithm is employed to tackle the problem of this two-way fluid–solid interaction. From our numerical simulation results, we found two leakage mechanisms: longitudinal slippage and transversal slippage. We took GLB500 PCP as a benchmark to validate our model and simulation method. Our computed volumetric efficiency of PCP with specified design parameters is consistent with experimental result of laboratory test. Furthermore, the model with fluid–structure interaction was used to compare the hydraulic characteristic curves of conventional and even-thickness PCPs and study the influence of different material and structure parameters on internal slip of PCP. The interference and stator thickness are found to be the two main factors influencing the volumetric efficiency, which can be used to optimize the design of PCP for specified purpose.
Guocheng Shi - One of the best experts on this subject based on the ideXlab platform.
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Finite element analysis for adhesive failure of Progressive Cavity pump with stator of even thickness
Journal of Petroleum Science and Engineering, 2014Co-Authors: Jie Chen, Fengshan Wang, Guocheng Shi, Gang Cao, He Yan, Ge Weitao, He LiuAbstract:Abstract Compared to conventional Progressive Cavity pump (PCP), even thickness PCP has numerous advantages such as uniform thermal and swelling expansion, stable operation and high volumetric efficiency. However, adhesive failure occurs on the stator of even thickness PCP more often in actual working conditions, which limits its development and application. In this study, finite element models of conventional PCP and even thickness PCP with the same structural parameters are established and simulated to find the mechanism for adhesive failure. We primarily study the force conditions of adhesive interface which bonds the stator and cylinder sleeve. The results show that shear strain caused by hydraulic pressure difference and interference displacement is quite large around the adhesive interface of even thickness PCP. The too large shear strain around the adhesive interface is the main cause of adhesive failure. Based on this analysis, the relationship between the shear strain and design parameters, such as the rubber adhesion ratio, pressure difference, elastic modulus of stator, magnitude of interference and wall thickness, is investigated. Our results show that the shear strain increases greatly and adhesive failure tends to occur in certain conditions. Furthermore, two new techniques to enhance the adhesive performance are presented and validated with our finite element analysis. Our research can be of great significance for guiding the design and optimization of even thickness PCPs.
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Optimization Design of Progressive Cavity Pumps via Finite Element Simulations With a Fluid-Solid Interaction Model
SPE Artificial Lift Conference & Exhibition-North America, 2014Co-Authors: Jie Chen, Fengshan Wang, Guocheng Shi, Gang Cao, He Yan, He Liu, Yanan Sun, Chunlong Sun, Ge WeitaoAbstract:Progressive Cavity pumps (PCPs) have been widely used as an artificial lifting device in various oilfield productions due to their numerous advantages. However, there still exist some problems during the practical application. In order to improve the performance and promote the application, it is of great significance to optimize the design of PCPs. Since the laboratory experiment costs large amounts of money and time, the finite element simulation is an alternative method.
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numerical prediction on volumetric efficiency of Progressive Cavity pump with fluid solid interaction model
Journal of Petroleum Science and Engineering, 2013Co-Authors: Jie Chen, Fengshan Wang, Guocheng Shi, He Liu, Gang CaoAbstract:Abstract Surface-driven Progressive Cavity pump (PCP) has been widely used as an effective artificial lift equipment in various oilfield productions. During the operation of PCPs, the problem of internal slip, which defines the pump performance in terms of volumetric efficiency and lifting capacity, always occurs. However, due to the complex geometrical structure and coupling interactions between the stator and the oil lifted, it is difficult to solve the volumetric efficiency analytically. In this study, we established a new finite element model of PCP, which consists of the stator, the rotor, the lifted fluid and the fluid–solid interaction. The controlling equations of solid deformation and fluid dynamics are solved using different solvers for solid domain and fluid domain respectively, and their results are exchanged through the fluid–solid interface. Partitioned solution algorithm is employed to tackle the problem of this two-way fluid–solid interaction. From our numerical simulation results, we found two leakage mechanisms: longitudinal slippage and transversal slippage. We took GLB500 PCP as a benchmark to validate our model and simulation method. Our computed volumetric efficiency of PCP with specified design parameters is consistent with experimental result of laboratory test. Furthermore, the model with fluid–structure interaction was used to compare the hydraulic characteristic curves of conventional and even-thickness PCPs and study the influence of different material and structure parameters on internal slip of PCP. The interference and stator thickness are found to be the two main factors influencing the volumetric efficiency, which can be used to optimize the design of PCP for specified purpose.
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Three dimensional dynamics simulation of Progressive Cavity pump with stator of even thickness
Journal of Petroleum Science and Engineering, 2013Co-Authors: X.z. Zhou, Guocheng Shi, He Yan, Chunlong Sun, Guangqiang Cao, He LiuAbstract:Abstract Surface-driving Progressive Cavity pump (PCP) has been widely used as an effective artificial lifting device in various oil field productions. However, non-uniform thermal and swelling expansion results in high laden torque of conventional PCP. New PCP with stator of even-thickness is a good alternative. To design and optimize even-thickness PCP, three-dimensional finite element simulation is employed to study the dynamics of the system of stator and rotor. Our computed laden torque for the given design parameters is in good agreement with the experimental result of laboratory test, which can verify our model and the simulation method. The relationship between the laden torque and the design parameters, such as wall thickness, magnitude of interference, rotational speed and eccentricity, is investigated. Our results show that the laden torque of even-thickness PCP is significantly reduced. The magnitude of interference and the thickness of stator are the two main factors that influence the laden torque. Our fitted quadratic function can calculate the laden torque due to interference more accurately than traditional linear function. Our work can be of great significance for guiding the design and optimization of new PCP.
