The Experts below are selected from a list of 6786 Experts worldwide ranked by ideXlab platform
P. Jaszak - One of the best experts on this subject based on the ideXlab platform.
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Selected Aspects of Cryogenic Tank Fatigue Calculations for Offshore Application
International Journal of Applied Mechanics and Engineering, 2018Co-Authors: J. Skrzypacz, P. JaszakAbstract:Abstract The paper presents the way of the fatigue life calculation of a cryogenic Tank dedicated for the carriers ship application. The Independent Tank type C was taken into consideration. The calculation took into account a vast range of the load spectrum resulting in the ship accelerations. The stress at the most critical point of the Tank was determined by means of the finite element method. The computation methods and codes used in the design of the LNG Tank were presented. The number of fatigue cycles was determined by means of S-N curve. The cumulated linear damage theory was used to determine life factor.
J. Skrzypacz - One of the best experts on this subject based on the ideXlab platform.
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Selected Aspects of Cryogenic Tank Fatigue Calculations for Offshore Application
International Journal of Applied Mechanics and Engineering, 2018Co-Authors: J. Skrzypacz, P. JaszakAbstract:Abstract The paper presents the way of the fatigue life calculation of a cryogenic Tank dedicated for the carriers ship application. The Independent Tank type C was taken into consideration. The calculation took into account a vast range of the load spectrum resulting in the ship accelerations. The stress at the most critical point of the Tank was determined by means of the finite element method. The computation methods and codes used in the design of the LNG Tank were presented. The number of fatigue cycles was determined by means of S-N curve. The cumulated linear damage theory was used to determine life factor.
Hyun Chung - One of the best experts on this subject based on the ideXlab platform.
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new methodology for estimating the minimum design vapor pressure of prismatic pressure vessel for on ship application
Ocean Engineering, 2018Co-Authors: Jaemin Lee, Daejun Chang, Hyun ChungAbstract:Abstract This paper presents a methodology for estimating the minimum design vapor pressure of prismatic pressure vessels for on-ship application. Engineering authorities guide the codes for a novel concept design such as a prismatic pressure vessel using a design by analysis (DBA). DBA methods enable high efficiency because they directly calculate the loads to avoid inherent conservativeness that exists in a design by rule (DBR). However, in DBA methods, the designer should conduct a finite element analysis (FEA) and evaluate the results iteratively to meet the design criteria. In this paper, we propose a new approach to estimating the minimum vapor pressure of a prismatic pressure vessel that follows the design philosophy of an IMO Type C Independent Tank. The procedure of the proposed method was demonstrated based on a case study. An FEA was also conducted for verification purposes. The results show that the proposed method can effectively estimate the required minimum shell thickness and designed vapor pressure without conducting an iterative FEA. In addition, minimization of the Tank shell thickness is made possible because the proposed method directly calculates the crack propagation rate to avoid an unnecessary margin while satisfying the fatigue crack propagation criteria.
Jaemin Lee - One of the best experts on this subject based on the ideXlab platform.
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new methodology for estimating the minimum design vapor pressure of prismatic pressure vessel for on ship application
Ocean Engineering, 2018Co-Authors: Jaemin Lee, Daejun Chang, Hyun ChungAbstract:Abstract This paper presents a methodology for estimating the minimum design vapor pressure of prismatic pressure vessels for on-ship application. Engineering authorities guide the codes for a novel concept design such as a prismatic pressure vessel using a design by analysis (DBA). DBA methods enable high efficiency because they directly calculate the loads to avoid inherent conservativeness that exists in a design by rule (DBR). However, in DBA methods, the designer should conduct a finite element analysis (FEA) and evaluate the results iteratively to meet the design criteria. In this paper, we propose a new approach to estimating the minimum vapor pressure of a prismatic pressure vessel that follows the design philosophy of an IMO Type C Independent Tank. The procedure of the proposed method was demonstrated based on a case study. An FEA was also conducted for verification purposes. The results show that the proposed method can effectively estimate the required minimum shell thickness and designed vapor pressure without conducting an iterative FEA. In addition, minimization of the Tank shell thickness is made possible because the proposed method directly calculates the crack propagation rate to avoid an unnecessary margin while satisfying the fatigue crack propagation criteria.
Daejun Chang - One of the best experts on this subject based on the ideXlab platform.
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new methodology for estimating the minimum design vapor pressure of prismatic pressure vessel for on ship application
Ocean Engineering, 2018Co-Authors: Jaemin Lee, Daejun Chang, Hyun ChungAbstract:Abstract This paper presents a methodology for estimating the minimum design vapor pressure of prismatic pressure vessels for on-ship application. Engineering authorities guide the codes for a novel concept design such as a prismatic pressure vessel using a design by analysis (DBA). DBA methods enable high efficiency because they directly calculate the loads to avoid inherent conservativeness that exists in a design by rule (DBR). However, in DBA methods, the designer should conduct a finite element analysis (FEA) and evaluate the results iteratively to meet the design criteria. In this paper, we propose a new approach to estimating the minimum vapor pressure of a prismatic pressure vessel that follows the design philosophy of an IMO Type C Independent Tank. The procedure of the proposed method was demonstrated based on a case study. An FEA was also conducted for verification purposes. The results show that the proposed method can effectively estimate the required minimum shell thickness and designed vapor pressure without conducting an iterative FEA. In addition, minimization of the Tank shell thickness is made possible because the proposed method directly calculates the crack propagation rate to avoid an unnecessary margin while satisfying the fatigue crack propagation criteria.
