多体系统动力学软件在汽车工程中应用的新进展

多体系统动力学分析软件取得了很大的发展，在汽车工程领域的应用日益广泛，并出现了新的变化和发展趋势。该文针对目前在国际汽车工程领域应用最广泛的两类多体系统动力学分析软件SIMPACK和MSC．ADAMS，从软件的理论背景、建模思想、软件功能以及在车辆工程中的应用等多角度对其进行分析。通过该文实例分析可以看出，SIMPACK软件所建立的动力学分析模型在求解时速度更快、更稳定，解算的精度也较高，在应用于含有控制系统的动力学系统设计分析中更有特色。MSC．ADAMS软件的组成模块更丰富，方便用户根据自身的实际需要选用合适的工具，市场化程度高，全球范围内的大量应用实例表明具有较高的可靠性，且有丰富的实际工程应用经验可资借鉴。

New Development of the Multi-Body Dynamics Software

In the recent years, the multi - body system dynamics analysis softwares has many huge changes, the application of them has many great success. For the softwares, both the development and the applying have many new status and trend. Aiming at the broadly used softwares - SIMPACK and MSC. ADAMS, the paper has researched them with respect to theoretical basis, modeling thought, analysis function and applications, therefore features of the two softwares are further comprehended, that facilitates the selection work of the most adequate software according to the proprietary research work.