欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
为了研究多间隙对齿轮转子系统动力学特性的影响，提出一种考虑多间隙耦合的齿轮转子系统动力学建模方法，并利用相应的动力学试验验证了建模方法的准确性。在动力学模型中，考虑了轴承径向间隙、动态齿侧间隙以及时变啮合刚度。分析转速和间隙大小对系统振动特性的影响规律。结果表明：从动轮加速度振动频谱主要包含径向振动频率和啮合振动频率。随着转速的提高，径向振动幅值增大，啮合振动也更为剧烈。径向间隙增大导致径向振动与啮合振动幅值升高，而齿侧间隙增大会导致机构回差增大。通过动力学验证试验，从频率和幅值上验证了理论计算和分析结果的正确性，但试验数据与理论计算之间仍存在一定误差，尤其是幅值误差较大，这些误差的主要来源是模型参数误差和测量误差。
英文摘要：
A new modelling method of gear-rotor system with multiple clearances used to investigate the dynamic responses of gear-rotor system is proposed. The dynamic model, including nonlinearity associated with radial clearance, dynamic backlash and time-varying mesh stiffness, is validated by experimental. Then the vibration characteristics of gear-rotor system with multiple clearances influenced by rotational speed and clearance size are presented and discussed in frequency domain. The results show that the spectrum of vibration acceleration mainly includes the radial frequency and mesh frequency. With the gradual increase of speed, the amplitude of radial vibration increases, and mesh vibration also more intense. The amplitudes of radial and mesh vibration increase with the increase of radial clearance. When the backlash is relatively large, the return difference is also relatively large. Finally, the theoretical calculation and analysis results are validated by the dynamic experiment data basically. And the differences between calculation results and experimental data are mainly from parameter error of dynamic model and measurement error.
同期刊论文项目
同项目期刊论文
期刊信息
位置：