Design of Clamping Force Measurement System of Railway Elastic Strip Fastener Based on LabVIEW
To rapidly measure the clamping force of railway elastic strip fasteners,accelerate the development of automated non-destructive testing for railway elastic strip fasteners,and improve testing efficiency,this paper presents a clamping force measurement system for railway elastic fasteners based on LabVIEW.The natural frequency of the elastic strip fasteners is measured through hammer method.Taking the TypeⅡelastic strip fastener as an example,the measurement device is divided into an impact excitation module,a measurement module,and an automatic advancement module.The impact excitation module completes a single independent impact to measure the natural frequency of the elastic fastener.Subsequently,the clamping force is calculated using a fitted relationship between the natural frequency and the clamping force,allowing for the determination of whether the elastic fastener has failed.This measurement device can move in one dimension along a single rail.Since it automatically moves to the next elastic fastener for impact and testing after each impact and measurement,significant labor and time savings are achieved,resulting in a high degree of automation.
万方数据
维普
