Design and Performance Analysis of Orthogonal Compliant Vector Force Measuring System

Zhang Leile; Li Dong; Zheng Guoliang; Ma Qianli

doi:10.16578/j.issn.1004.2539.2024.06.020

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Design and Performance Analysis of Orthogonal Compliant Vector Force Measuring System

Test·Analysis | 更新时间：2024-06-19

- Design and Performance Analysis of Orthogonal Compliant Vector Force Measuring System
- Journal of Mechanical Transmission Vol. 48, Issue 6, Pages: 133-141(2024)
- 作者机构：
  
  郑州机械研究所有限公司，河南郑州 450001
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2024.06.020
  CLC：
- Published：15 June 2024，
  
  Received：15 November 2023，
  
  Revised：17 January 2024，
扫描看全文
张磊乐,李东,郑国良等.正交柔顺矢量测力系统的设计和性能分析[J].机械传动,2024,48(06):133-141.

Zhang Leile,Li Dong,Zheng Guoliang,et al.Design and Performance Analysis of Orthogonal Compliant Vector Force Measuring System[J].Journal of Mechanical Transmission,2024,48(06):133-141.
张磊乐,李东,郑国良等.正交柔顺矢量测力系统的设计和性能分析[J].机械传动,2024,48(06):133-141. DOI： 10.16578/j.issn.1004.2539.2024.06.020.

Zhang Leile,Li Dong,Zheng Guoliang,et al.Design and Performance Analysis of Orthogonal Compliant Vector Force Measuring System[J].Journal of Mechanical Transmission,2024,48(06):133-141. DOI： 10.16578/j.issn.1004.2539.2024.06.020.

摘要

针对多分支正交柔顺矢量测力系统的设计难题，提出了梁连接单元模拟测力元件的方法；采用该方法建立了测力分支及矢量测力系统的有限元模型，并对6种分支形式和平面布局形式进行了结构特点分析。在此基础上，结合矢量测力系统案例，通过有限元模型进行参数详细设计，最终获得了结构紧凑且耦合较小的方案。对台架的3个载荷分量（轴向力、法向力、俯仰力矩）进行了校准试验，其中，校准的不确定度均在0.5%满量程（Full Scale，FS）左右。针对大载荷矢量测力系统加载精度对校准测量的影响较大的问题，提出了基于载荷与测量比值的性能评估方法，采用该方法，得到设计的矢量测力系统的3个分量的测量重复性在0.4%FS左右，大量程测量滞后性在0.7%FS以内。研究成果对于正交矢量测力系统的结构设计和性能分析具有一定的参考意义。

Abstract

Aiming at the design challenges of multi-branch orthogonal compliant vector force measuring system

a finite element method with beam connection units is proposed

and finite element models of dynamometry branches and vector force measuring system are established using this method. Structural characteristics analysis is carried out for six branch forms and lateral layout forms. Based on this

combined with a case study of vector force measuring system

detailed parameter design is conducted using the finite element model

resulting in a compact and minimally coupled structure. Calibration tests for the three load components of the vector force measuring system (axial force

normal force

and pitching moment) are performed

with uncertainties of calibration around 0.5% of the full scale (FS). To address the significant impact of the loading accuracy of high-load vector force measuring systems on calibration measurements

a performance evaluation method based on the ratio of load to measurement is proposed. Through this method

the repeatability of the three-component measurement of the designed vector force measuring system is around 0.4%FS

and the hysteresis of large-range measurement is within 0.7%FS. The research findings have quite reference significance for the structural design and performance analysis of orthogonal vector force measuring systems.

关键词

矢量测力系统柔顺机构柔性铰链挠性件矢量推力

Keywords

Vector force measuring systemFlexure mechanismFlexure hingeFlexure elementVector thrust

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