基于RecurDyn的钢板弹簧动力学模型的建立与参数辨识  

Dynamics Modeling and Parameter Identification of Leaf Spring Based on RecurDyn

作　　者：周孔亢[1] 陆建辉[1] 侯永涛[2] 魏银雷 孟令斐 赛羊羊 

机构地区：[1]江苏大学汽车与交通工程学院,镇江212013 [2]江苏大学机械工程学院,镇江212013

出　　处：《机械工程学报》2014年第4期128-134,共7页Journal of Mechanical Engineering

基　　金：江苏省博士后基金(1101114C);江苏大学高级专业人才科研启动基金(10JDG064)资助项目

摘　　要：基于离散梁原理,提出一种在RecurDyn系统中建立钢板弹簧多体动力学模型的方法。通过用户自定义子程序的方式为钢板弹簧片与片之间所定义的三向力,可有效模拟弹簧片间的接触力和摩擦力,建模方法可有效兼顾钢板弹簧的刚度特性和迟滞特性。利用RecurDyn系统提供的ProcessNet二次开发工具,通过引用AForge.NET开源框架,实现了遗传优化算法与RecurDyn系统的无缝集成。基于两片模型等效模拟多片模型的思想,所开发的应用程序可以对所建立的两片钢板弹簧动力学模型的参数进行有效辨识,使得模型能够较真实地反映钢板弹簧的实际特性。通过一个实例验证了钢板弹簧动力学模型的正确性及应用程序的有效性。Based on discrete beam principle, a construction method for multi-body dynamics model of leaf spring in Recurdyn system is proposed. The contact force and friction between the interacting spring leaves are effectively simulated by defining the user subroutine translational forces in Recurdyn system. Both stiffness characteristic and hysteretic property of leaf spring are taken into account in the process of model building. The integration of genetic algorithm and the Recurdyn system are realized by using the development tool ProcessNet which provides by Recurdyn system and the reference of the AForge.NET open source framework. Based on the concept that the spring model with two leaves equivalently emulate multi-leaf spring model, the developed application program can effectively identify the parameters of the dynamics model and enable the model to reflect the characteristics of leaf spring more veritably. The correctness of the leaf spring dynamics model and the validity of the application program are verified by an actual example.

关 键 词：钢板弹簧 动力学模型 迟滞特性 参数辨识 遗传算法 

分 类 号：U463[机械工程—车辆工程]