450t钳夹车研制及刚柔耦合动态仿真技术支持

Newly-Developed 450t Schnabel Car and Technical Supports of Rigid-Flex Coupling Dynamical Simulations

对于450t钳夹车研制来讲,大型刚柔耦合动态仿真提供了多方面的技术支持,如压柱油缸的最大压力、小半径曲线通过限界分析和钳夹梁高应力区确定等.刚柔耦合仿真分析具有以下3个特点:即利用模板建模技术,实现了整车模型仿真分析;应用柔性体接口处理技术对策,建立了诸如钳夹梁等大型柔性体模型;刚柔耦合仿真,其约束力更加接近实际情况,并为静强设计与试验提供了科学数据.大型刚柔耦合动态仿真分析促进了长大货车新产品研制能力迅速提升,同时刚柔耦合动态仿真技术日趋完善.

For the newly-developed 450t Schnabel car, the following technical supports were received by apply- ing dynamical simulations of rigid-flex coupling, e. g. maximu force of pressure post oil cylinder, gauge analysis in minimum curve negotiation and determination of high strees district in Schnabel girder. Dynamical simulation of rigid-flex coupling has the three features as follows：the dynamical simulation of full vehicle can be analysized by applying template modeling technique;the large-sacled flexible body,like Schnabel girder, can be mod- eled correctly by the interface transaction technical strategy of flexible body to MBS;and through the dynamical simulation analysis of rigid-flex coupling, the constraint forces can approach the actual ones, which are the scientific data for the designs and experiments of static strength. The rapid promation of developing capacity for special wagons of long and big freight, like Schnabel and well cars, can be implemented by applying the dynamical simulation analysis of large-scaled rigid-flex coupling.