旋转轴系径向非接触磁力激振技术研究
Radial Non-contact Magnetic Excitation Technology of Rotating Shaft System
周凌波 1段勇 1孙玉东 1魏强2
作者信息
- 1. 中国船舶科学研究中心船舶振动噪声重点实验室 无锡,214082;深海技术科学太湖实验室 无锡,214082
- 2. 中国船舶科学研究中心船舶振动噪声重点实验室 无锡,214082;中国舰船研究设计中心 武汉,430064
- 折叠
摘要
针对旋转轴系振动试验中需要对转轴进行径向非接触动态线性激振的实际需求,开展了径向非接触式磁力激振器的设计研制及性能试验.首先,采用磁路解析法推导线性化后的径向磁力计算方法;其次,开展了激振器结构和绕组参数的设计,加工出激振器实物并设计了测力结构对其频域作动性能进行全面测试;最后,将激振器用于轴系台架激振试验,提出了一种非接触作动力的换算方法,并将激振结果与力锤激振方式进行了对比,同时研究了激励信号大小以及转速对激振效果的影响.试验结果表明,研制的激振器性能良好,实现了设计目标,试验结果与理论计算结果以及力锤激振结果的误差在合理范围内,验证了该方法的适用性和准确性.
Abstract
To meet the actual demand of loading radial non-contact dynamic linear excitation on the rotating shaft in the vibration test,a radial non-contact magnetic exciter is designed,manufactured and tested for its per-formance.Firstly,the linearized radial magnetic force calculation method is derived using the magnetic circuit analysis method.Based on this,the structural and winding parameters of the exciter are designed.Then,the prototype is processed and the non-contact force test system is designed to test the exciter's frequency domain ac-tuation performance.Finally,the exciter is applied to the shafting bench vibration excitation test.A conversion method to get the non-contact actuation force is proposed.The excitation results are compared with the force hammer excitation method.At the same time,the influence on the excitation effect is studied by changing the signal voltage and rotation speed.The test results show that the exciter performs well and achieves the design objectives.The errors between the test results and the theoretical calculation results as well as the hammering re-sults are within a reasonable range,which verifies the applicability and accuracy of the calculation,design and test verification method used in this paper.
关键词
非接触/旋转轴系/径向激振/磁力激振/作动特性Key words
non-contact/rotating shaft system/radial excitation/magnetic excitation/actuation performance引用本文复制引用
基金项目
船舶振动噪声重点实验室项目(JCKY2020207CI03)
出版年
2024
NETL
NSTL
万方数据