摘要
以多刚体动力学和多柔体系统理论为基础,运用ADAMS软件建立供弹机虚拟样机模型,对供弹机供弹过程的运动规律和动力学特性进行分析.考虑供弹机关键部件——拨弹机构的柔性化处理,建立刚柔耦合系统模型,得到拨弹机构多阶固有频率拨和动力响应曲线,与刚体模型进行对比分析.结果表明:与刚性模型相比,刚柔耦合模型则考虑到由于构件的柔性特征在运行时的反向角速度引起的转动偏差,因此计算分析结果更符合实际工况,提高了供弹机工作的可靠性,为供了弹系统设计的合理性检验提供了重要的参考依据.
Based on the multi-rigid-body dynamics and multi-flexible-body system,the feeder virtual prototyping model is established using ADAMSTM.The motional principles and dynamical properties during feeding process are analyzed.With the flexible treatment on a key component,stir projectile mechanism,a rigid-flexible coupling system model is constructed to obtain multi-order inherent frequencies and dynamical response curves.Accordingly,it is indicated that,compared with rigid-body model,the rigidflexible coupling model considers the component flexible properties,i.e.,the rotary deviation by reverse angular velocity.As such,the calculation and analysis results are closer to the actual working conditions for feeder reliability improvement.Therefore,this approach provides a reference to the rationality verification for feeding system design.
出处
《中国工程机械学报》
2014年第5期377-383,共7页
Chinese Journal of Construction Machinery
基金
国家自然科学基金资助项目(51205052)
关键词
供弹机
虚拟样机
刚柔耦合模型
可靠性
feeder
virtual prototyping
rigid-flexible coupling model
reliability
