计量学报2024，Vol.45Issue(8)：1170-1176,7.DOI:10.3969/j.issn.1000-1158.2024.08.12
基于椭圆形柔性铰链微克级单体式称量机构性能分析与优化
Performance Analysis and Optimization of Microgram Monomer Weighing Mechanism Based on Elliptical Flexure Hinge
摘要
Abstract
To improve the sensitivity of single weighing mechanism,the performance of microgram monomer weighing mechanism was analyzed and optimized,and the mathematical model of the weighing mechanism based on elliptical flexure hinge was established.The sensitivity of the weighing mechanism was evaluated by the end displacement of the beam of the weighing mechanism.The influence of elliptical and circular hinge on the sensitivity of the weighing mechanism was verified by changing the hinge thickness in different parts.The accuracy of the model was verified with Ansys Workbench finite element simulation software,and the evaluation basis for the mesh division of flexible hinges was given.The results show that the minimum error of the model is 1.8％,and under 1 pg load,the end displacement of elliptical hinge increases by 0.39 nm compared with circular hinge.关键词
质量计量/微克级称量/单体式称量机构/椭圆形柔性铰链/有限元仿真Key words
mass metrology/microgram weighing/monomer weighing mechanism/elliptical flexure hinge/finite element simulation分类
通用工业技术引用本文复制引用
朱锦辉,王健,江文松,罗哉..基于椭圆形柔性铰链微克级单体式称量机构性能分析与优化[J].计量学报,2024,45(8):1170-1176,7.基金项目
国家自然科学基金(52075515) （52075515）
