关键词: 复杂机械系统, 虚拟样机, 多体动力学, 子系统建模

Abstract: In view of the shortcomings of the dynamics simulation software for complex mechanical system in terms of low efficiency, incapability of reuse and high threshold for fresh users, comprehensive investigation on subsystem modeling technology of complex mechanical system was performed. A coordinate switch method of multilevel subsystem was put forward, an interface scheme of subsystem model was introduced, and the assembly arithmetic of subsystem and its parameterized arithmetic based on subsystem assembly were developed. Subsystem modeling components and submodel store of automobile were sequentially integrated with dynamical simulation platform-InteDyna. By cooperating with some automobile corporation, the efficiency and reliability of subsystem modeling technology was verified by applying InteDyna to the whole automobile dynamics simulation analysis and test validation of various types of automobiles.

Key words: complex mechanical system, virtual prototyping, multibody system dynamics, subsystem modeling