| 使用因素对滚动轮胎振动特性影响的有限元分析 |
| Finite Element Analysis of Influence Factors on Rolling Tire Vibration Characteristics |
| 投稿时间：2017-04-07 修订日期：2017-04-07 |
| DOI： |
| 中文关键词: 滚动轮胎 有限元分析 振动速度 滤波 傅里叶变换 |
| 英文关键词: rolling tire finite element analysis vibration velocity wave filtering Fourier transform |
| 基金项目:国家自然科学基金资助项目（51605198，51675240）；江苏省青年基金资助项目（KB20160528）；中国博士后科学基金资助项目（2015M571681） |
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| 中文摘要: |
| 以215/75R17.5载重子午线轮胎为研究对象，利用Abaqus/Explicit模拟轮胎在转鼓上的滚动过程并分析其振动特性。为了验证该有限元分析方法的准确性，采用多普勒激光测振仪测量轮胎在转鼓上滚动时胎侧测点在时域下的振动速度响应，应用Matlab中等波纹低通滤波器Firpm函数对测得的时域信号进行滤波，保留20～500 Hz频率间的振动响应信号并对其进行傅里叶变换，与频域下的仿真值进行对比，二者具有良好的一致性，证明了滚动轮胎有限元分析方法的准确性。从有限元仿真的角度分析了使用因素对胎面和胎侧振动特性的影响规律。研究表明：胎面的振动速度分布关于轮胎顶点对称，靠近接地区域振动速度幅值最大，接地后端振动速度大于接地前端；随着速度和充气压力的增大，胎面和胎侧的振动速度随之增大，载荷对胎面和胎侧振动速度的影响较小。 |
| 英文摘要: |
| Taking 215/75R17.5 truck and bus radial tire as the object，using Abaqus/Explicit to simulate the rolling process of tire on the drum and analyze its vibration characteristics.In order to verify the accuracy of the finite element analysis method，Doppler laser vibrometer was used to measure the vibration response of measuring points on tire sidewall in the time domain，and then Matlab corrugated medium low pass filter Firpm function was used to filter the measured time domain signal，vibration frequency response signals between 20～500 Hz were retained and Fourier transformed，compared with the simulation values of the frequency domain，they had good consistency，which proved the accuracy of the finite element analysis method for rolling tire.Based on the finite element simulation，the effects of velocity，inflation pressure and load on the tread and sidewall vibration characteristics were analyzed.The results showed that the tread vibration velocity distribution was symmetrical about tire vertex，the amplitude of vibration velocity close to the ground was maximum，and the vibration velocity of ground back end was larger than that of ground front end.With the increase of velocity and inflation pressure，the vibration velocity of tread and sidewall increased，and the load had little effect on the vibration velocity of tread and sidewall. |
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