Structure simulation analysis design of 20kN·m shaft torque measurement sensor

Author(s):  
Jiejun Lin ◽  
Dingding Zhao ◽  
Shengquan Chu ◽  
Kun Xia ◽  
Zishan Ding
2013 ◽  
Vol 136 (6) ◽  
Author(s):  
Bernhardt Lüddecke ◽  
Dietmar Filsinger ◽  
Jan Ehrhard ◽  
Bastian Steinacher ◽  
Christian Seene ◽  
...  

Turbochargers develop away from an auxiliary component—being “off the shelve”—towards an integrated component of the internal combustion engine. Hence, increased attention is paid to the accuracy of the measured turbine and compressor maps. Especially turbine efficiency measurement under engine-relevant operating conditions (pulsed flow) is recently receiving increased attention in the respective research community. Despite various turbine map extrapolation methods, sufficient accuracy of the input test data is indispensable. Accurate experimental data are necessary to achieve high quality extrapolation results, enabling a wide range and precise prediction of turbine behavior under unsteady flow conditions, determined by intermittent operation of the internal combustion engine. The present work describes the first application of a contactless shaft torque measurement technique—based on magnetostriction—to a small automotive turbocharger. The contactless torque measuring system is presented in detail and sensor principle as well as sensor calibration are illustrated. A sensitivity study regarding sensor position influences onto sensor signal proves the robustness and very good repeatability of the system. In the second part of the paper, steady state experimental results from operation on a conventional hot gas test stand over a wide map range are presented. These results are validated against full turbine stage (adiabatic as well as diabatic) CFD results as well as against “cold” efficiency measurements, based on measured inlet and outlet temperatures. The influence and relevance of bearing friction for such measurements is underlined and the improvements on this matter—achieved by direct torque measurement—are demonstrated.


2011 ◽  
Vol 101-102 ◽  
pp. 560-563
Author(s):  
Wei Xie

Arch dam is a water retaining structure which has beautiful bodily form and reasonable structure form. In recent years, arch dam has been widely used. This paper adopts finite element method to carry out three-dimensional finite element simulation analysis for Xiuwen hydropower station, research variation law of the dam’s stress and displace in operational process. Research results show that, single curvature arch dam of Xiuwen hydropower station have reasonable structure, good mechanical properties, every index meets the requirements for design.


2013 ◽  
Vol 351-352 ◽  
pp. 30-33
Author(s):  
Wei Wu ◽  
Jing Ji

Simulation analysis on prestressed concrete pipe was carried out by using finite element software ANSYS. The internal and external pressure which the pipeline is subject to is simulated in real work process, and deformation and stress distribution of building pipeline structure are got. We have great understanding in the mechanical properties, at the same time give a detailed introduction for the prefabrication and on-site construction process. Three aspects in this paper for analysis, design and construction can provide safe and reliable reference for design and construction of similar pipeline structure.


2015 ◽  
Vol 743 ◽  
pp. 467-470
Author(s):  
H. Zhang ◽  
H.W. Zhang ◽  
J.Q. Yang

Passing ability of articulated vehicles is analyzed, which are combined of different 6×4 tractors and different semitrailers. According to the requirements of GB 1589, the passing ability of different structure articulated vehicles are simulated using AutoTURN. In order to analyze the passing ability impact factor of articulated vehicles in type and structure, simulation analysis is used to study how the tractor front overhang, the distance between center of tractor fifth wheel and the tractor first axle, and the semitrailer first wheel space impact on the passing ability. Reasonable suggestions are proposed by analyzing how the changes of parameters impact on the passing ability. The validity of the simulation model is validated by the test. The results serve as a useful reference for optimizing the articulated vehicle passing ability and promoting the development of vehicle industry technology.


Author(s):  
Bernhardt Lüddecke ◽  
Dietmar Filsinger ◽  
Jan Ehrhard ◽  
Bastian Steinacher ◽  
Christian Seene ◽  
...  

Turbochargers develop away from an auxiliary component — being “off the shelve” — towards an integrated component of the internal combustion engine. Hence, increased attention is paid to the accuracy of the measured turbine and compressor maps. Especially turbine efficiency measurement under engine-relevant operating conditions (pulsed flow) is recently receiving increased attention in the respective research community. Despite various turbine map extrapolation methods, sufficient accuracy of the input test data is indispensable. Accurate experimental data are necessary to achieve high quality extrapolation results, enabling a wide range and precise prediction of turbine behavior under unsteady flow conditions, determined by intermittent operation of the internal combustion engine. The present work describes the first application of a contactless shaft torque measurement technique — based on magnetostriction — to a small automotive turbocharger. The contactless torque measuring system is presented in detail and sensor principle as well as sensor calibration are illustrated. A sensitivity study regarding sensor position influences onto sensor signal proves the robustness and very good repeatability of the system. In the second part of the paper, steady state experimental results from operation on a conventional hot gas test stand over a wide map range are presented. These results are validated against full turbine stage (adiabatic as well as diabatic) CFD results as well as against “cold” efficiency measurements, based on measured inlet and outlet temperatures. The influence and relevance of bearing friction for such measurements is underlined and the improvements on this matter — achieved by direct torque measurement — are demonstrated.


2021 ◽  
Vol 1885 (5) ◽  
pp. 052017
Author(s):  
Yifei Wang ◽  
Zhongde Shan ◽  
Shuangfeng Wu ◽  
Zhi Guo ◽  
Shijie Dong ◽  
...  

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