基于多场耦合建模的发动机半主动悬置参数识别
Parameter Identification of Semi-active Engine Mount Based on Multi-field Coupling Modeling
摘要 针对半主动悬置优化中存在的多场耦合精确建模的难题,采用ADINA软件,建立了半主动悬置液固气三相耦合仿真模型,通过关键参数的辨识和准确提取,获得了半主动悬置的集总参数模型,并研究了其动特性.结果表明:基于ADINA的液固气三相耦合仿真模型,能快速、准确提取集总参数模型的关键参数,实现半主动悬置动特性的准确预测.通过试验验证了多场耦合建模和动特性分析方法的正确性,为汽车发动机半主动悬置的正向开发与结构优化提供了可行的方法.
Abstract:
In view of the difficulty in accurately setting up multi-field coupling model for the optimization of semi-active mount, ADINA software is adopted to establish a liquid-solid-gas three-phase coupling simulation model for semi-active engine mount, and a lumped parameter model for semi-active mount is also acquired by accurate i-dentification and extraction of key parameters, with its dynamic characteristics studied. The results show that the ADINA-based liquid-solid-gas three-phase coupling simulation model can rapidly and accurately extract the key pa-rameters in lumped parameter model, realizing the accurate prediction on the dynamic characteristics of semi-active mount. The correctness of multi-field coupling modeling and dynamic characteristics analysis method are verified by tests , providing a feasible scheme for the forward development and structure optimization of the semi-active mount of automotive engine.
Author: Zheng Ling You Zuolong Liu Qiaobin Pang Jian Xu Xiaomin Chen Daijun
作者单位: 汽车噪声振动与安全技术国家重点实验室,重庆 401120;重庆大学汽车工程学院,机械传动国家重点实验室,重庆 400044 重庆大学汽车工程学院,机械传动国家重点实验室,重庆 400044 汽车噪声振动与安全技术国家重点实验室,重庆 401120;重庆长安汽车工程研究院,重庆 401120
刊 名 汽车工程 ISTICEIPKU
年,卷(期): 2017, 39(5)
在线出版日期: 2017年6月30日
基金项目: 汽车噪声振动与安全技术国家重点实验室开放基金