郑颖,郑显锋,程经杰.发动机悬置系统优化分析[J].电子测量技术,2019,42(10):48-51
发动机悬置系统优化分析
Optimization analysis of engine mounting system
  
DOI:
中文关键词:  发动机悬置系统  固有频率  振动模态  解耦  优化分析
英文关键词:engine mounting system  inherent frequency  vibration mode  decoupling  optimization analysis
基金项目:长安大学重点科研平台开放基金项目(300102228506)资助
作者单位
郑颖 西安航空学院 车辆工学院 西安 710077 
郑显锋 西安航天计量测试研究所 西安 710100 
程经杰 西安航空学院 车辆工学院 西安 710077 
AuthorInstitution
Zheng Ying School of Vehicle Engineering, Xi’an Aeronautical University,Xi’an 710077, China 
Zheng Xianfeng Measuring and Testing Institute Under Xi’an Aerospace Corporation,Xi’an 710100, China 
Cheng Jingjie School of Vehicle Engineering, Xi’an Aeronautical University,Xi’an 710077, China 
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中文摘要:
      发动机悬置系统是汽车发动机的重要组成部分,在车辆行驶过程中发挥着支承发动机、阻隔振动、提高乘坐舒适等作用。通过对汽车发动机的建模和仿真,研究悬置元件刚度与悬置系统固有特性的关系。在Adams软件中建立发动机悬置系统的三维模型,进行仿真分析,并在Vibration振动模块中得到悬置系统的固有频率和振动模态能量解耦分布,分析得出隔振效果不佳,以悬置橡胶垫的刚度为优化参数,得到新的能量解耦分布,在主振方向的解耦率到达了80%以上。对比初始数据,解耦程度有很大的提高,说明优化后的数据对发动机的隔振有明显的效果,验证了优化设计方法的可行性。
英文摘要:
      The engine mount system is an important part of the vehicle, Play the role of supporting engine, blocking vibration and improving ride comfort in the process of driving This paper studies the relationship between the stiffness of the suspension element and the inherent characteristics of the suspension system by modeling and simulation of the automobile engine. In Adams software, a three-dimensional model of the engine suspension system is established, simulation analysis is conducted, and the intrinsic frequency and vibration modal energy decoupling distribution of the suspension system is obtained in the Vibration vibration module. The analysis shows that the vibration isolation effect is poor. With the stiffness of suspended rubber pad as the optimized parameter, a new energy decoupling distribution is obtained, and the decoupling rate in the main vibration direction reaches more than 80%. Compared with the initial data, the decoupling degree is greatly improved, which shows that the optimized data has obvious effect on the vibration isolation of the engine, and verifies the feasibility of the optimized design method.
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