增程器轴系不对中故障动力学响应特性分析
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摘要
通过分析增程器轴系在不对中故障时的运动状态与受力情况,建立增程器轴系的动力学模型,并利用多体动力学软件对增程器轴系平行不对中、偏角不对中、综合不对中三种类型的故障进行仿真,分析不同类型不对中故障产生的动力学响应特性。结果表明,系统振动频谱中1谐次和2谐次的幅值可作为增程器轴系不对中故障诊断特征参数,平行不对中导致2谐次的幅值大幅增长,偏角不对中使1谐次幅值变化明显;增程器轴系左右两侧在2谐次下的振动相位差可进一步对不对中故障类型进行辨识,其中平行不对中故障时轴系两侧振动相位差接近0°,偏角不对中故障时轴系两侧振动相位差接近180°,综合不对中故障时轴系两侧振动相位差远大于180°。
By analyzing the motion state and stress distribution of range extender under shafting misalignment fault,this paper established the extender shafting dynamics model and simulated the fault types including parallel misalignment,deflection misalignment and mixed misalignment by using multi-body dynamic software.The dynamic response characteristics of different types of misalignment faults were analyzed.The results show that the amplitude of first order and second order in the vibration spectrum of the system can be used as the characteristic parameter of fault diagnosis of range extender under shafting misalignment fault.The parallel misalignment leads to a big increase in the amplitude of the second order,and the angular deviation misalignment leads to a significant change in the amplitude of the first order.The vibration phase difference between the left and right sides of the shaft system of the extender at second harmonic order can further identify the misalignment fault type.When the shaft system has parallel misalignment,the phase difference on both sides of shafting vibration is close to 0°.When the shaft system has angular deviation misalignment,the vibration phase difference between two sides of the shaft system is close to 180°.When the shaft system has mixed misalignment fault,the vibration phase difference between two sides of the shaft system is greater than 180°.
By analyzing the motion state and stress distribution of range extender under shafting misalignment fault,this paper established the extender shafting dynamics model and simulated the fault types including parallel misalignment,deflection misalignment and mixed misalignment by using multi-body dynamic software.The dynamic response characteristics of different types of misalignment faults were analyzed.The results show that the amplitude of first order and second order in the vibration spectrum of the system can be used as the characteristic parameter of fault diagnosis of range extender under shafting misalignment fault.The parallel misalignment leads to a big increase in the amplitude of the second order,and the angular deviation misalignment leads to a significant change in the amplitude of the first order.The vibration phase difference between the left and right sides of the shaft system of the extender at second harmonic order can further identify the misalignment fault type.When the shaft system has parallel misalignment,the phase difference on both sides of shafting vibration is close to 0°.When the shaft system has angular deviation misalignment,the vibration phase difference between two sides of the shaft system is close to 180°.When the shaft system has mixed misalignment fault,the vibration phase difference between two sides of the shaft system is greater than 180°.
引文
[1]曲晓冬,王庆年,于远彬.增程式电动车的APU控制策略的研究[J].汽车工程,2013,35(9):763-768.
[2] Borghi M,Mattarelli E,Muscoloni J,et al.Design and experimental development of a compact and efficient range extender engine[J].Applied Energy,2017,202:507-526.
[3] Ferrando Chacon J L,Artigao Andicoberry E,Kappatos V,et al.Shaft angular misalignment detection using acoustic emission[J].Applied Acoustics,2014,85:12-22.
[4]黄志伟,周建中,张勇传.水轮发电机组转子不对中-碰摩耦合故障动力学分析[J].中国电机工程学报,2010,30(8):88-93.
[5]李自刚,李明,江俊.不对中联轴器-柔性转子系统非线性动力学行为[J].动力学与控制学报,2014,12(1):30-35.
[6] Qi X X,Yuan Z H,Han X W.Diagnosis of misalignment faults by tacholess order tracking analysis and RBF networks[J].Neurocomputing,2015,169:439-448.
[7] Haroun S,Seghir A N,Touati S,et al.Misalignment fault detection and diagnosis using AR model of torque signal[C]∥10th IEEE International Symposium on Diagnostics for Electrical Machines,Guarda Portugal,September 2015:322-326.
[8]雷文平,韩捷,李志胜,等.齿式联轴节不对中转子的动力学响应分析[J].机械强度,2012,34(3):327-332.
[9]温斌,仝世伟,程林志,等.风电机组双馈发电机振动故障分析[J].机电工程,2014,31(8):1071-1076.
[10]谢兆明.转子系统不对中-裂纹耦合故障的非线性动力学分析[D].哈尔滨:哈尔滨工业大学,2015.
[11]刘杨,李炎臻,石拓,等.转子-滑动轴承系统不对中-碰摩耦合故障分析[J].机械工程学报,2016,52(13):79-86.
[2] Borghi M,Mattarelli E,Muscoloni J,et al.Design and experimental development of a compact and efficient range extender engine[J].Applied Energy,2017,202:507-526.
[3] Ferrando Chacon J L,Artigao Andicoberry E,Kappatos V,et al.Shaft angular misalignment detection using acoustic emission[J].Applied Acoustics,2014,85:12-22.
[4]黄志伟,周建中,张勇传.水轮发电机组转子不对中-碰摩耦合故障动力学分析[J].中国电机工程学报,2010,30(8):88-93.
[5]李自刚,李明,江俊.不对中联轴器-柔性转子系统非线性动力学行为[J].动力学与控制学报,2014,12(1):30-35.
[6] Qi X X,Yuan Z H,Han X W.Diagnosis of misalignment faults by tacholess order tracking analysis and RBF networks[J].Neurocomputing,2015,169:439-448.
[7] Haroun S,Seghir A N,Touati S,et al.Misalignment fault detection and diagnosis using AR model of torque signal[C]∥10th IEEE International Symposium on Diagnostics for Electrical Machines,Guarda Portugal,September 2015:322-326.
[8]雷文平,韩捷,李志胜,等.齿式联轴节不对中转子的动力学响应分析[J].机械强度,2012,34(3):327-332.
[9]温斌,仝世伟,程林志,等.风电机组双馈发电机振动故障分析[J].机电工程,2014,31(8):1071-1076.
[10]谢兆明.转子系统不对中-裂纹耦合故障的非线性动力学分析[D].哈尔滨:哈尔滨工业大学,2015.
[11]刘杨,李炎臻,石拓,等.转子-滑动轴承系统不对中-碰摩耦合故障分析[J].机械工程学报,2016,52(13):79-86.