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Real-time Tire Parameters Observer for Vehicle Dynamics Stability Control
tire longitudinal stiffness cornering stiffness vehicle dynamics stability
2011/8/3
The performance of the vehicle dynamics stability control system(DSC) is dominated by the accurate estimation of tire forces in real-time. The characteristics of tire forces are determined by tire dyn...
槽孔加工中钻杆系统的非线性运动与动力稳定性(Stability and Nonlinear Response of Drilling Shaft System in Deep Slot Hole Drilling)
槽孔 钻杆 非线性动力学
2009/5/22
考虑了切削力波动、质量偏心及切削液流体力对钻杆动特性的影响。在求解切削液动态流体力时,引入变分约束原理,在动力积分、迭代过程中实时形成修正的Reynolds方程变分形式的有限元方程及其扰动方程,同时求得了切削液流体力及其Jacobian矩阵,并且使其具有相互协调一致的精度。在求解钻杆系统非线性动力学响应时,通过改变系统的时间尺度, 使系统周期轨迹的周期显式地出现在系统方程中,并将周期也作为一个参数...