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RISS 인기검색어
- 검색키워드
- 저자 : Xumin Guo (검색결과 3 건)
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A new method to calculate the equivalent stiffness of the suspension system of a vehicle
Pinbin Zhao,Guo-feng Yao,Min Wang,Xumin Wang,Jianhui Li 국제구조공학회 2012 Structural Engineering and Mechanics, An Int'l Jou Vol.44 No.3
The stiffness of a suspension system is provided by the bushings and the stiffness of the wheel center controls the suspension's elasto-kinematic (e-k) specification. So the stiffness of the wheel center is very important, but the stiffness of the wheel center is very hard to measure. The paper give a new method that we can use the stiffness of the bushings to calculate the equivalent stiffness of the wheel center, which can quickly and widely be used in all kinds of suspension structure. This method can also be used to optimize and design the suspension system. In the example we use the method to calculate the equivalent stiffness of the wheel center which meets the symmetric and positive conditions of the stiffness matrix.
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A new method to calculate the equivalent stiffness of the suspension system of a vehicle
Zhao, Pinbin,Yao, Guo-Feng,Wang, Min,Wang, Xumin,Li, Jianhui Techno-Press 2012 Structural Engineering and Mechanics, An Int'l Jou Vol.44 No.3
The stiffness of a suspension system is provided by the bushings and the stiffness of the wheel center controls the suspension's elasto-kinematic (e-k) specification. So the stiffness of the wheel center is very important, but the stiffness of the wheel center is very hard to measure. The paper give a new method that we can use the stiffness of the bushings to calculate the equivalent stiffness of the wheel center, which can quickly and widely be used in all kinds of suspension structure. This method can also be used to optimize and design the suspension system. In the example we use the method to calculate the equivalent stiffness of the wheel center which meets the symmetric and positive conditions of the stiffness matrix.
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Comparative study on two finite element models for multi-clamp pipeline system
Yiming Cao,Qingdong Chai,Xumin Guo,Hui Ma,Pengfei Wang 대한기계학회 2022 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.36 No.3
Due to the limitations of space and environment, a considerable number pipelines supported by multiple clamps are used in the external pipeline system of aero engines, which lead to the modeling difficulties and low efficiency. In this paper, taking U-shaped and Zshaped pipelines as examples, two methods of whole modeling and section modeling are used based on the finite element, and the piecewise linear models of clamps are introduced to compare the vibration characteristics under different boundary conditions. In addition, the simulation results are compared and verified by experiments. In the modal analysis, the coupled modes refer to the dependent modes which can influence each other through energy transfer while independent modes without energy transfer are called un-coupled modes. The results show that, for uncoupled modes of U-shaped and Z-shaped pipeline systems, the section model has smaller error and higher efficiency, which is suitable for the primary design stage of complex multi-clamp pipeline system. For the order of coupled mode, the accuracy of the whole model is high, and it is suitable for the check and vibration analysis of pipeline system. Moreover, the errors of both models decrease with the increase of tightening torque.
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