摘要
针对电动舵机用电动缸滚珠丝杠噪声较大的问题,通过建立滚珠丝杠振动的数学模型,计算得到滚珠丝杠自然状态下的振动频率及振型。采用Solidworks建立滚珠丝杠的三维模型,并导入到有限元分析软件Ansys中划分网格,仿真计算出滚珠丝杠的自然模态。通过与数学模型计算出的结果对比,验证了Ansys仿真分析结果的准确性,从而在设计中避开滚珠丝杠发生共振的频率,以达到减小噪声的目的。
In allusion to the big noise of ball screw used in electric cylinder of electric helm,listed the mathematic model of vibration of the ball screw,and counted out the vibrate frequency and swing.Established the three-dimensional model of it by Solidworks,and put it into the finite element analysis software ANSYS to mesh and get the modal of it. Contrasted the modal with the result of mathematic model,validate that the modal analysis is accurate,so as to avoid the frequency of vibration and reduce the noise.
出处
《舰船科学技术》
北大核心
2013年第12期29-31,41,共4页
Ship Science and Technology
关键词
电动舵机
滚珠丝杠
振动
频率
electric helm
ball screw
vibration
frequency
