摘要
针对电动舵系统颤振问题,将舵系统简化为双惯量模型,并在该模型的基础上分析了舵系统颤振的原因。通过对舵系统传递函数以及单自由度碰撞振动系统力学模型的分析,得出传动机构刚度、间隙等非线性因素以及负载惯量对舵系统稳定性的影响,并分析了各因素造成舵系统颤振的原因。通过数学仿真,验证了所得结论的正确性,并针对颤振抑制提出了相应的改进措施。
To avoid chattering in electromechanical actuation system,the system model is simplified as a two-mass transmission one,and the causes for chattering are analyzed on the basis of the model. By analyzing the transfer function of the actuator system and the model of a one-degree-of-freedom vibroimpact system,the way the load inertia and the nonlinear factors like servo drive stiffness and backlash impact on the performance of the system is discussed. The results of simulation show that the theory could explain the causes of the chattering in electromechanical actuator. Measures are put forward for the suppression of the chattering.
作者
宋涛
熊官送
李邦清
曹东海
SONG Tao XIONG Guan-song LI Bang-qing CAO Dong-hai(Beijing Institute of Automatic Control Equipment,Beijing 100074, China)
出处
《导航定位与授时》
2016年第6期45-49,共5页
Navigation Positioning and Timing
关键词
电动舵系统
颤振
刚度
负载惯量
间隙
Electromechanical actuator
Chattering
Stiffness
Load inertia
Backlash
