The Experts below are selected from a list of 1308 Experts worldwide ranked by ideXlab platform
I. A. Odobesko - One of the best experts on this subject based on the ideXlab platform.
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TECHNIQUE FOR DETERMINING AVERAGE PLANE OF Pipe TapS BY A TRIANGULATION METHOD USING AN ANTROPOMORPHIC ROBOT
2019Co-Authors: N. S. Lyubimyi, B. S. Chetverikov, M. S. Chepchurov, I. A. OdobeskoAbstract:Introduction. Nowadays there are various manufacture methods of Pipe Taps. One of the most laborious operations during manufacture is a marking of Pipe Taps for subsequent machining. Work layout operations are performed using special tool ware and outfit. These operations are performed manually and it leads to the decrease in accuracy and to the increase of laboriousness. The authors suggest the method of determination of the latent base of Pipe Tap (average plane) using an anthropomorphic robot. The results of research would help to make the virtual calculation of tool position of the anthropomorphic robot for marking and to generate the robot trajectory. Ultimately, such research would also decrease laboriousness and increase accuracy of marking operation.Materials and methods. The authors suppose to use latent base, namely the average plane of the Pipe Tap as a measuring base. The robot is calibrated from the base plane placement and chooses the shortest circular arc by comparative approach. Therefore, such shortest arc would form the average plane. The authors carry out the determination of the curve line length by the triangulation method using the interferometer.Results. The result of the research is the technology development for determination of latent base in the average plane form.Discussion and conclusions. The proposed method of latent bases determination of Pipe Tap would allow making the automated system of marking of Pipe Taps. Moreover, such method would help to reduce time of performing operations as well as to decrease the manufacture laboriousness on the following stage of technological process
N. S. Lyubimyi - One of the best experts on this subject based on the ideXlab platform.
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TECHNIQUE FOR DETERMINING AVERAGE PLANE OF Pipe TapS BY A TRIANGULATION METHOD USING AN ANTROPOMORPHIC ROBOT
2019Co-Authors: N. S. Lyubimyi, B. S. Chetverikov, M. S. Chepchurov, I. A. OdobeskoAbstract:Introduction. Nowadays there are various manufacture methods of Pipe Taps. One of the most laborious operations during manufacture is a marking of Pipe Taps for subsequent machining. Work layout operations are performed using special tool ware and outfit. These operations are performed manually and it leads to the decrease in accuracy and to the increase of laboriousness. The authors suggest the method of determination of the latent base of Pipe Tap (average plane) using an anthropomorphic robot. The results of research would help to make the virtual calculation of tool position of the anthropomorphic robot for marking and to generate the robot trajectory. Ultimately, such research would also decrease laboriousness and increase accuracy of marking operation.Materials and methods. The authors suppose to use latent base, namely the average plane of the Pipe Tap as a measuring base. The robot is calibrated from the base plane placement and chooses the shortest circular arc by comparative approach. Therefore, such shortest arc would form the average plane. The authors carry out the determination of the curve line length by the triangulation method using the interferometer.Results. The result of the research is the technology development for determination of latent base in the average plane form.Discussion and conclusions. The proposed method of latent bases determination of Pipe Tap would allow making the automated system of marking of Pipe Taps. Moreover, such method would help to reduce time of performing operations as well as to decrease the manufacture laboriousness on the following stage of technological process
B. S. Chetverikov - One of the best experts on this subject based on the ideXlab platform.
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TECHNIQUE FOR DETERMINING AVERAGE PLANE OF Pipe TapS BY A TRIANGULATION METHOD USING AN ANTROPOMORPHIC ROBOT
2019Co-Authors: N. S. Lyubimyi, B. S. Chetverikov, M. S. Chepchurov, I. A. OdobeskoAbstract:Introduction. Nowadays there are various manufacture methods of Pipe Taps. One of the most laborious operations during manufacture is a marking of Pipe Taps for subsequent machining. Work layout operations are performed using special tool ware and outfit. These operations are performed manually and it leads to the decrease in accuracy and to the increase of laboriousness. The authors suggest the method of determination of the latent base of Pipe Tap (average plane) using an anthropomorphic robot. The results of research would help to make the virtual calculation of tool position of the anthropomorphic robot for marking and to generate the robot trajectory. Ultimately, such research would also decrease laboriousness and increase accuracy of marking operation.Materials and methods. The authors suppose to use latent base, namely the average plane of the Pipe Tap as a measuring base. The robot is calibrated from the base plane placement and chooses the shortest circular arc by comparative approach. Therefore, such shortest arc would form the average plane. The authors carry out the determination of the curve line length by the triangulation method using the interferometer.Results. The result of the research is the technology development for determination of latent base in the average plane form.Discussion and conclusions. The proposed method of latent bases determination of Pipe Tap would allow making the automated system of marking of Pipe Taps. Moreover, such method would help to reduce time of performing operations as well as to decrease the manufacture laboriousness on the following stage of technological process
M. S. Chepchurov - One of the best experts on this subject based on the ideXlab platform.
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TECHNIQUE FOR DETERMINING AVERAGE PLANE OF Pipe TapS BY A TRIANGULATION METHOD USING AN ANTROPOMORPHIC ROBOT
2019Co-Authors: N. S. Lyubimyi, B. S. Chetverikov, M. S. Chepchurov, I. A. OdobeskoAbstract:Introduction. Nowadays there are various manufacture methods of Pipe Taps. One of the most laborious operations during manufacture is a marking of Pipe Taps for subsequent machining. Work layout operations are performed using special tool ware and outfit. These operations are performed manually and it leads to the decrease in accuracy and to the increase of laboriousness. The authors suggest the method of determination of the latent base of Pipe Tap (average plane) using an anthropomorphic robot. The results of research would help to make the virtual calculation of tool position of the anthropomorphic robot for marking and to generate the robot trajectory. Ultimately, such research would also decrease laboriousness and increase accuracy of marking operation.Materials and methods. The authors suppose to use latent base, namely the average plane of the Pipe Tap as a measuring base. The robot is calibrated from the base plane placement and chooses the shortest circular arc by comparative approach. Therefore, such shortest arc would form the average plane. The authors carry out the determination of the curve line length by the triangulation method using the interferometer.Results. The result of the research is the technology development for determination of latent base in the average plane form.Discussion and conclusions. The proposed method of latent bases determination of Pipe Tap would allow making the automated system of marking of Pipe Taps. Moreover, such method would help to reduce time of performing operations as well as to decrease the manufacture laboriousness on the following stage of technological process
Bannwart, Antonio Carlos - One of the best experts on this subject based on the ideXlab platform.
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Pressure Drop in Vertical Core-Annular Flow
2015Co-Authors: Prada, José Walter Vanegas, Bannwart, Antonio CarlosAbstract:An experimental apparatus for the study of core annular flows of heavy oil and water at room temperature has been set up and tested at laboratory scale. The test section consists of a 2.75 cm ID galvanized steel Pipe. Tap water and a heavy oil (17.6 Pa.s; 963 kg/m³) were used. Pressure drop in a vertical upward test section was accurately measured for oil flow rates in the range 0.297 - 1.045 l/s and water flow rates ranging from 0.063 to 0.315 l/s. The oil-water input ratio was in the range 1-14. The measured pressure drop comprises gravitational and frictional parts. The gravitational pressure drop was expressed in terms of the volumetric fraction of the core, which was determined from a correlation developed by Bannwart (1998b). The existence of an optimum water-oil input ratio for each oil flow rate was observed in the range 0.07 - 0.5. The frictional pressure drop was modeled to account for both hydrodynamic and net buoyancy effects on the core. The model was adjusted to fit our data and shows excellent agreement with data from another source (Bai, 1995)