Modeling and Parameter Sensitivity Analysis of Helicopter Main Rotor Bifilar Vibration Absorber

机译：直升机主旋翼双腔减振器的建模与参数敏感性分析

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The modeling and parameter sensitivity analysis of the helicopter main rotor bifilar vibration absorber withrnthe tuning mass constrained to move along an epicycloid path are presented in this paper. The absorberrnconsists of multi-tuning masses, connected together in a horizontal rotor-hub-mounted support frame viarnmulti-support arms. Based on Lagrange Principle, the coupled nonlinear dynamical formulation of a bifilarrnvibration absorber is developed. Then the linearized analysis is performed for calculating bifilarrnconfiguration parameters. And numerical simulations using the full nonlinear dynamical formulation arerncarried out for evaluating the validity of bifilar vibration absorber. Finally, the effects of the interrelatedrnparameters on the vibration control are investigated with numerical examples. The conclusion of this paperrnis helpful for helicopter main rotor bifilar vibration absorber design.

机译：提出了在调谐质量受约束沿摆线路径运动的情况下，直升机主旋翼双线减振器的建模和参数灵敏度分析。减振器由多调谐质量组成，通过多支承臂在水平转子轮毂安装的支承框架中连接在一起。基于拉格朗日原理，建立了双线振动吸收器的耦合非线性动力学公式。然后进行线性化分析以计算双丝构型参数。并利用全非线性动力学公式进行了数值模拟，以评价双线减振器的有效性。最后，通过数值算例研究了相关参数对振动控制的影响。本文的结论有助于直升机主旋翼双线减振器的设计。

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来源
《AHS international Asian/Australian Rotorcraft Forum》|2013年|525-535|共11页
会议地点 Tianjin(CN)
作者
Jun Zhao; Mingzhong Wu;
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作者单位

China Helicopter Research and Development Institute;

Jingdezhen;

People’s Republic of China, 333001Tel. 0798-8465602, Fax.0798-8485599E-mail: ppwzj1981@163.com;

China Helicopter Research and Development Institute;

Jingdezhen;

People’s Republic of China, 333001Tel.0798-8465304, Fax.0798-8485599E-mail: WMZ17503955@avic.com;

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Modeling and Parameter Sensitivity Analysis of Helicopter Main Rotor Bifilar Vibration Absorber

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