3.1.2轮胎的稳态滚动分析教程.docx

PAGE \* MERGEFORMAT9 3.1.2?Steady-state rolling analysis of a tire 3.1.2轮胎的稳态滚动分析 Product:?Abaqus/Standard?? This example illustrates the use of steady-state transport in Abaqus ( HYPERLINK http://user-j7vbesnn26:2080/v6.14/books/usb/usb-link.htm \l usb-anl-asteadystatetransport \t v614usbwin “Steady-state transport analysis,”?Section 6.4.1 of the Abaqus Analysis Users Guide) to model the steady-state dynamic interaction between a rolling tire and a rigid surface. A steady-state transport analysis uses a moving reference frame in which rigid body rotation is described in an Eulerian manner and the deformation is described in a Lagrangian manner. This kinematic description converts the steady moving contact problem into a pure spatially dependent simulation. Thus, the mesh need be refined only in the contact region—the steady motion transports the material through the mesh. Frictional effects, inertia effects, and history effects in the material can all be accounted for in a steady-state transport analysis. 这个例子说明了在Abaqus中使用稳态传输（“稳态传输分析”，“Abaqus分析用户指南”第6.4.1节）来模拟滚动轮胎和刚性表面之间的稳态动态相互作用。稳态传输分析使用移动参考系，其中以欧拉方式描述刚体旋转，并且以拉格朗日方式描述变形。该运动学描述将稳定移动接触问题转换成纯空间依赖性模拟。因此，网格仅需要在接触区域中精制 - 稳定运动通过网格传送材料。材料中的摩擦效应，惯性效应和历史效应都可以在稳态传输分析中考虑。 The purpose of this analysis is to obtain free rolling equilibrium solutions of a 175 SR14 tire traveling at a ground velocity of 10.0?km/h (2.7778?m/s) at different slip angles on a flat rigid surface. The slip angle is the angle between the direction of travel and the plane normal to the axle of the tire. Straight line rolling occurs at a 0.0° slip angle. For comparison purposes we also consider an analysis of the tire spinning at a fixed position on a 1.5 m diameter rigid drum. The drum rotates at an angular velocity of 3.7 rad/s, so that a point on the surface of the drum travels with an instantaneous velocity of 10.0 km/h (2.7778 m/s). Another case presented examines the camber thrust arising from camber applied to a tire at free rolling condi