西安交通大学能源与动力工程学院,西安,710049
网络首发:2009-11-10,
纸质出版:2009
移动端阅览
刘雅琳 1, 徐自力 2, 上官博 1, 等. 时频域交互法在微滑移干摩擦阻尼叶片振动分析中的应用[J]. 西安交通大学学报, 2009,43(11):22-26.
Application of Alternating Frequency/Time Domain Method to Vibration Analysis on Damping Blade Systems Based on Microslip Dry Friction Model[J]. 2009, 43(11): 22-26.
为准确揭示叶片阻尼系统的动力学特征
首次引入融合时域法(描述非线性力的准确性)和频域法(求解线性系统的高效性)为一体的时频域交互法
对基于微滑移摩擦模型的凸肩阻尼结构叶片系统进行了动力响应分析
并与时域法、频域法的计算结果做了比较.计算结果显示:在一定的参数条件下
时频域交互法的计算时间与一阶谐波平衡法相近
仅相当于四阶Runge-kutta法的1/10
相对误差值却不到一阶谐波平衡法的1/2
且保持稳定.研究表明:时频域交互法对于计算微滑移干摩擦阻尼叶片振动响应具有可用性
该方法克服了一阶谐波平衡法无法将微滑移模型的准确性体现在动力学分析中的不足
而且计算效率高.
An alternating frequency/time domain method(AFT)is presented to calculate the dynamic characteristics of damping blade systems accurately. The dynamic response of damping blade systems is predicted based on the microslip dry friction model
and the computational accuracy and efficiency are compared with those by the time domain method and the frequency domain method. The results indicate of that under certain parameter conditions
the calculation time of AFT method is similar to that of the one-term harmonic balance method(HBM)and is just ten percent of that of the fourth-order Runge-Kutta method
and the relative error of the result with the AFT method is less than half that with HBM. These findings confirm the practicability of the AFT method in computing dynamic response of damping blade systems based on the microslip dry friction model. Unlike HBM
the AFT method can achieve the accuracy of microslip dry friction model in dynamics analysis and has high computational efficiency.
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松装叶片燕尾型叶根干摩擦力模型及振动响应分析.西安交通大学学报,2009,43(7):1-5.
微滑移阻尼叶片最优正压力的影响因素分析.西安交通大学学报,2008,42(7):828-832.
离心压缩机叶轮叶片疲劳断裂故障的数值分析.西安交通大学学报,2008,42(11):1336-1339.
基于微动滑移模型的叶片阻尼结构参数研究.西安交通大学学报,2007,41(5):507-511.
圆筒表面椭圆裂纹应力强度因子的数值研究.西安交通大学学报,2009,43(7):63-68.
分数阶阻尼Duffing系统的非线性动力学特性.西安交通大学学报,2009,43(3):50-54.
三维流体诱发振动的理论模型与数值模拟.西安交通大学学报,2007,41(5):512-516.
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