双发动机工作时倾转旋翼机传动系统扭转振动的计算

PDF(1565 KB)

振动与冲击 ›› 2012, Vol. 31 ›› Issue (10) : 128-133.

论文

双发动机工作时倾转旋翼机传动系统扭转振动的计算

许兆棠

作者信息 +

Calculation of torsional vibration for a transmission system of tilt-rotor drived by twin engines

XU Zhao-tang

Author information +

文章历史 +

摘要

为了获得双发动机工作时倾转旋翼机传动系统扭转振动的特性，进行了倾转旋翼机传动系统扭转振动的计算和分析。在简化传动系统结构的基础上，将倾转旋翼机传动系统划分为若干个轴段和圆盘的子系统，根据动量矩定理和振型叠加原理，分别列出扭转运动方程，再利用边界关系，合成子系统的扭转运动方程，得到传动系统的扭转运动方程，通过求解传动系统的扭转运动方程，并根据振型叠加原理，得到双发动机工作时倾转旋翼机传动系统扭转振动的角位移，在此基础上，给出算例，分析了传动系统的扭转频响函数。

Abstract

In order to obtain characteristics of torsional vibration for a transmission system of tilt-rotor driven by twin engines, its torsional vibration is calculated and analyzed. Based on a simplified structural of a transmission system of tilt-rotor, the transmission system is divided into the subsystems of shaft segment and disks. The torsional dynamic equations are build by the theorem of moment of momentum and the superposition principle of mode of vibration. According to the boundary conditions, the torsional dynamic equations of subsystems are combined into a torsional dynamic equation of the transmission system. After soluting the torsional dynamic equation, the torsional angular displacement of torsional vibration for a transmission system of tilt-rotor driven by twin engines is derived by the superposition principle of mode of vibration. A computational example is given. Torsional frequency response function of the transmission system are analyzed.

导出引用

许兆棠. 双发动机工作时倾转旋翼机传动系统扭转振动的计算[J]. 振动与冲击, 2012, 31(10): 128-133

XU Zhao-tang. Calculation of torsional vibration for a transmission system of tilt-rotor drived by twin engines[J]. Journal of Vibration and Shock, 2012, 31(10): 128-133