基于响应曲面法优化振荡天平谐振元件的结构  

Structure optimization of resonant element of oscillating balance based on response surface methodology

作　　者：刘丹丹 代英鹏 单驰 李德文 汤春瑞 Liu Dandan;Dai Yingpeng;Shan Chi;Li Dewen;Tang Chunrui(School of Electrical & Control Engineering, Heilongjiang University of Science & Technology, Harbin 150022, China;China Coal Technology Engineering Group Chongqing Research Institute, Chongqing 400037, China)

机构地区：[1]黑龙江科技大学电气与控制工程学院,哈尔滨150022 [2]中煤科工集团重庆研究院有限公司,重庆400037

出　　处：《黑龙江科技大学学报》2022年第1期111-116,共6页Journal of Heilongjiang University of Science And Technology

基　　金：国家重点研发计划项目(2017YFC0805208,2018YFC0810500)。

摘　　要：为提高振荡天平颗粒物测量装置的灵敏度,仿真分析同种材料下不同结构的谐振元件的频率,选取谐振元件高度、固定端内径短轴长度及自由振荡端内径为设计变量,以灵敏度为响应变量仿真计算三种变量的影响强度,研究灵敏度最大时的测量装置结构和在不同质量载荷下的灵敏。结果表明,谐振元件的灵敏度受高度影响最大,最优结构尺寸下的灵敏度相对于优化前结构的灵敏度提升了6.6倍,载荷质量在0.1~5.0 mg内,其灵敏度均在1.94 Hz/mg以上,保证了其测量装置的精度。This paper seeks to improve the sensitivity of the oscillating balance particle measurement device.The study involves simulating and analyzing the frequencies of the resonant elements with different structures under the same material;selecting as the design variables the height of the resonant element,the length of the minor axis of the fixed end inner diameter,and the inner diameter of the free oscillating end;using the sensitivity as the response variable to simulate and calculate the influence intensity of the three variables;and thereby identifying the structure of the measuring device to maximize the sensitivity and the sensitivity under different mass loads.The results show that the sensitivity of the resonant element is most affected by the height;and the optimal structure exhibits a 6.6 times higher sensitivity than the original structure,with the sensitivity more than 1.94 Hz/mg when the load mass is between 0.1 mg and 5.0 mg,which ensures the accuracy of the measurement device.

关 键 词：振荡天平 谐振元件 有限元分析 响应曲面 

分 类 号：TM930.3[电气工程—电力电子与电力传动]