| 宽频带电磁式角振动台运动部件动态优化设计 |
| |
| 引用本文： | 唐波,何闻.宽频带电磁式角振动台运动部件动态优化设计[J].农业机械学报,2015,46(10):376-382,390. |
| |
| 作者姓名： | 唐波 何闻 |
| |
| 作者单位： | 中国计量学院工业与商贸计量技术研究所;浙江大学,浙江大学 |
| |
| 基金项目： | 国家自然科学基金资助项目(51375443)、国家重大仪器设备开发专项资助项目(2013YQ470765)和浙江省自然科学基金杰出青年基金资助项目(LR12E05001) |
| |
| 摘 要： | 为满足角振动台输出高角加速度和宽工作频带的要求,提出并优化设计了一种具有圆盘式动圈结构的电磁式角振动台运动部件。首先,介绍了具有圆盘式动圈结构的电磁式角振动台工作原理,并对运动部件的动力学模型进行理论分析,结果表明降低圆盘式动圈及工作台面的转动惯量,增强连接轴的刚度,即提高运动部件的第1阶固有扭振频率,可有效提高角振动台角加速度输出能力及扩展工作频率范围;接着,以动圈导线通过单位电流时的运动部件输出最大角加速度为目标,采用粒子群优化算法优化设计了动圈参数,以最小转动惯量和最高第1阶固有扭振频率为目标,采用有限元法优化设计了动圈的拓扑结构以及工作台面和连接轴的材料组合;最后,将优化后的运动部件应用于宽频带电磁式角振动台样机中,实验结果表明,角振动台输出的最大角位移和角加速度分别为60°和2 000 rad/s2,而角振动台运动部件第1阶固有扭振频率达到1 100 Hz。
|
| 关 键 词： | 角振动台 运动部件 动态优化设计 粒子群优化算法 有限元法 |
| 收稿时间： | 2015/1/11 0:00:00 |
Dynamic Optimization Design of Moving Component for Broadband Electromagnetic Angular Vibrator |
| |
| Tang Bo and He Wen.Dynamic Optimization Design of Moving Component for Broadband Electromagnetic Angular Vibrator[J].Transactions of the Chinese Society of Agricultural Machinery,2015,46(10):376-382,390. |
| |
| Authors: | Tang Bo and He Wen |
| |
| Institution: | nstitute of Industry and Trade Measurement Technique, China Jiliang University;Zhejiang University and Zhejiang University |
| |
| Abstract: | In order to realize large output angular acceleration and high working frequency of the angular vibrator, a moving component of an electromagnetic angular vibrator with a disk moving coil structure was proposed and optimally designed. First, the principle of the electromagnetic angular vibrator with a disk moving coil structure was introduced, and dynamic models of its moving component were analyzed, which showed that the output capability of angular acceleration from the angular vibrator would be improved and the working frequency range would be widened when the rotary inertia of the moving coil and the vibration table was decreased or the stiffness of the connecting shaft was increased, or the first-order torsional resonance frequency of the moving component was increased. Then, the parameters of the disk moving coil were optimally designed by particle swarm optimization (PSO) method with the goal of realizing the maximum output angular acceleration when a unit current was passed through the moving coil wire. Furthermore, in order to realize the minimum rotary inertia and the highest first-order torsional resonance frequency, the topology of the moving coil and the material combinations of the vibration table and connecting shaft were optimally designed with finite element method. Finally, the optimized moving component was applied to a prototype of the broadband electromagnetic angular vibrator. Experimental results showed that the angular vibrator could output angular acceleration as large as 2 000 rad/s2 with the maximum angular displacement of 60°, and the first-order torsional resonance frequency of the moving component for the angular vibrator could get as high as 1 100 Hz. |
| |
| Keywords: | |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《农业机械学报》浏览原始摘要信息 |
| 点击此处可从《农业机械学报》下载免费的PDF全文 |
|
