摘要
某成熟三轮摩托车车体平台在搭载新的动力平台后,因低转速振动过大会影响用户的舒适度。通过振动测试与车体平台模态分析,结合新动力平台不平衡激励方向的变化找到车体低转速下扭转振动的主要原因。基于激励力作用方式,调整发动机悬置方式,使激励中不包含模态振型敏感的转矩激励,使低转速振动幅值下降约90%,在保障车体平台通用(不调整)的条件下满足振动控制要求。
A mature three-wheeled motorcycle body platform carrying a new power platform will suffer excessively large low-speed vibration,which may affect user comfort.By vibration test,the modal analysis of the vehicle body platform is conducted,and combined with the change of the unbalanced excitation direction of the new power platform,the main cause for the torsional vibration at low speed of the vehicle body is identified.Based on the action mode of the excitation force,the engine mounting mode is adjusted,excluding the torque excitation in excitation,which reduces vibration amplitude at low speed by about 90%,and meets the vibration control requirements under the condition of ensuring the universality(unadjusted)of the vehicle body platform.
作者
权春锋
QUAN Chunfeng(Shaanxi Institute of Technology,Xi'an 710302,China)
出处
《机械制造与自动化》
2025年第4期200-203,共4页
Machine Building & Automation
基金
2023年度陕西高等职业教育教学改革研究项目(23GG009)
2020年度陕西国防工业职业技术学院思政科研项目(ZY20B02)。
关键词
三轮摩托车
振动控制
悬置
模态分析
three-wheeled motorcycle
vibration control
mounting
modal analysis
