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您的检索式：作者名="Liu Shuiwen"
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| 1 | Vehicle Planar Motion Stability Study for Tyres Working in Extremely Nonlinear Region显示文摘Many researches on vehicle planar motion stability focus on two degrees of freedom(2DOF) vehicle model,and only the lateral velocity (or side slip angle) and yaw rate are considered as the state variables.The stability analysis methods,such as phase plane analysis,equilibriums analysis and bifurcation analysis,are all used to draw many classical conclusions.It is concluded from these researches that unbounded growth of the vehicle motion during unstable operation is untrue in reality thus one limitation of the 2DOF model.The fundamental assumption of the 2DOF model is that the longitudinal velocity is treated as a constant,but this is intrinsically incorrect.When tyres work in extremely nonlinear region,the coupling between the vehicle longitudinal and lateral motion becomes significant.For the purpose of solving the above problem,the effect of vehicle longitudinal velocity on the stability of the vehicle planar motion when tyres work in extremely nonlinear region is investigated.To this end,a 3DOF model which introducing the vehicular longitudinal dynamics is proposed and the 3D phase space portrait method is employed for visualization of vehicle dynamics.Through the comparisons of the 2DOF and 3DOF models,it is discovered that the vehicle longitudinal velocity greatly affects the vehicle planar motion,and the vehicle dynamics represented in phase space portrait are fundamentally different from that of the 2DOF model.The vehicle planar motion with different front wheel steering angles is further represented by the corresponding vehicle route,yaw rate and yaw angle.These research results enhance the understanding of the stability of the vehicle system particularly during nonlinear region,and provide the insight into analyzing the attractive region and designing the vehicle stability controller,which will be the topics of future works. | LIU Li SHI Shuming SHEN Shuiwen CHU Jiangwei | 2010 | Chinese Journal of Mechanical Engineering2010，23，2： | 8 |
| 2 | Creep behaviour and constitutive model of coal filled with gas显示文摘Coal exhibits different creep behaviours when filled with different amounts of gas. Creep tests of coal filled with 0 and 0.5 MPa gas were performed, and strain under different axial stress was compared.The three creep constitutive models which were analysed using the method fitting experimental data for determining which creep model can reflect the creep process of the test best. The results show that the deformation of coal filled with 0.5 MPa gas is more higher than that of coal filled with 0 MPa gas under the same axial stress. Gas plays a positive effect on the deformation of coal process and will accelerate creep process. And gas will reduce coal intensity and change coal creep properties.Compared with Nishihara Model and Extensional Nishihara Model, Burgers Model can reflect the three stages of creep process of coal filled with gas better. The research results can contribute to reveal coal and gas outburst mechanism. | Li Xiangchun Yang Chunli Ren Ting Nie Baisheng Zhao Caihong Liu Shuiwen Jiang Tao | 2017 | International Journal of Mining Science and Technology2017，27，5： | 3 |
| 3 | Model of Gas Concentration Forecast Based on Chaos Theory显示文摘 | Zhai Shengrui Nie Baisheng Liu Shuiwen | 2011 | Procedia Engi- neering2011，，26： | 1 |
| 4 | Model of Gas Concentration Forecast Based on Chaos Theory显示文摘 | Zhai Shengrui Nie Baisheng Liu Shuiwen | 2011 | Procedia Engineering2011，26，： | 1 |
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