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:基于计算机通用程序 DYNOCOMBS(约束多体系统动力学 ) ,开发了不同结构原木拖车的摆—滚—颠模型的一般非线性算法。采用一般卡车通用动力学分析程序 ,只需补充描述原木拖车特殊设计特征的约束方程 ,上述算法即可实现。为综合考虑轮胎转弯和刹车力 ,仿真中应用了 BNPS模型。系统方向性响应的数值计算结果与实验现场测试结果以及 CSTT(加拿大国家研究会路面运输技术中心 )模型进行了校核。摆 -滚 -颠模型与仅考虑摆动的模型计算结果进行了比较。为适应货物质量质心以及轮胎的硬度和转弯特性等参数的变化 ,对操纵性能的灵敏度进行了研究
: A general nonlinear algorithm for pendulum-roll-top models of log trailers with different structures was developed based on DYNOCOMBS (Constraint Multibody System Dynamics). General truck general dynamics analysis program, only need to add a description of the special characteristics of the design of the trailer trailer constraint equations, the above algorithm can be achieved. In order to comprehensively consider tire turning and braking force, the BNPS model is applied in the simulation. The numerical results of the system directivity response were checked against the experimental site test results and the CSTT (Canadian National Institute of Pavement Transportation Technology) model. The pendulum-roll-top model is compared with the model calculation considering only swinging. In order to meet the quality of the cargo center of mass and tire hardness and turning characteristics such as changes in the parameters of the steering performance of the sensitivity study