A Novel Method for Dynamically Measuring Diameters of Train Wheels Using Laser Displacement Transducers

Qibo, 冯其波 Feng; Zhifeng, 张志峰 Zhang; Shiqian, 陈士谦 Chen; Yan, 高岩 Gao; Jianying, 崔建英 Cui

doi:10.3788/cjl20083507.1059

Cited by 9 publications

(4 citation statements)

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“…Figure 1a shows the method for dynamically measuring the wheel diameter using one 1D- LDT and eddy current sensor [15]. As shown in Figure 1a, the 1D-LDT is fixed on the rail at point A with an angle α .…”

Section: Measurement Methodsmentioning

confidence: 99%

“…Naumann et al proposed a measurement system using at least 26 1D-LDTs [14], which is difficult to apply on-site. We propose a series of methods using 1D-LDTs [15,16]. One 1D-LDT was used to dynamically measure the diameter and an eddy current sensor was used to locate the position of the wheel [15].…”

Section: Introductionmentioning

confidence: 99%

“…We propose a series of methods using 1D-LDTs [15,16]. One 1D-LDT was used to dynamically measure the diameter and an eddy current sensor was used to locate the position of the wheel [15]. In order to improve the accuracy of the positioning, two eddy current sensors were used [16].…”

Section: Introductionmentioning

confidence: 99%

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A High-Precision Method for Dynamically Measuring Train Wheel Diameter Using Three Laser Displacement Transducers

Zheng

Zhang

Gao

et al. 2019

Sensors

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Wheel diameter is a significant geometric parameter related to the safe operation of trains, and needs to be measured dynamically. To the best of the authors’ knowledge, most existing dynamic measurement methods and systems do not meet the requirement that the wheel diameter measurement error for the high-speed vehicle is less than 0.3 mm. In this paper, a simple method for dynamically and precisely measuring train wheel diameter using three one-dimensional laser displacement transducers (1D-LDTs) is proposed for the first time, and a corresponding measurement system which was developed is described. The factors that affect the measurement accuracy were analyzed. As a main factor, rail deformation caused by the wheel-rail interaction force at low (20 km/h) and high (300 km/h) speeds was determined based on the combination of multi-body dynamics and finite element methods, and the effect of rail deformation on measurement accuracy is greatly reduced by a comparative measurement. Field experiments were performed to verify the performance of the developed measurement system, and the results of the repeatability error and measurement error of the system were both less than 0.3 mm, which meets the requirement of wheel diameter measurements for high-speed vehicles.

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Section: Measurement Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A High-Precision Method for Dynamically Measuring Train Wheel Diameter Using Three Laser Displacement Transducers

Zheng

Zhang

Gao

et al. 2019

Sensors

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“…3 Parallelogram mechanism, as a plane linkage mechanism in common use in the mechanical industry commonly, is applied for transmitting force and motion mainly. In a parallel four-sided row mechanism, the connecting rod always does translation motion [10]. Utilizing the characteristic of parallelogram mechanism to constrain the motion of supporting plate is the critical component to improve the motion characteristic of ITM.…”

Section: System Composition Of Itmmentioning

confidence: 99%

Improved Tilting Method for Automobile Mass Center Measurement Based on Simulation Analysis

Gu,

Li,

Tan

et al. 2023

AETR

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The Tilting Method(TM) is applied to measure the automobile mass center position widely for simple principles and easy operations. However, the TM has some problems, such as inaccurate calculation of tire force point and large tilting angle of the vehicle, so the Improved Tilting Method (ITM) is proposed in this paper. In the process of running ITM, the tire force direction is always straight up, so the friction and other adverse factors are less than that in TM. ITM applies a combined parallelogram mechanism to keep the supporting plates horizontal. In this research, we study the ITM measurement process by simulation analysis. The research results show that the design scheme and the equipment movement outcomes prove the feasibility and practicability of the ITM.

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A simple method for dynamically measuring the diameters of train wheels using a one-dimensional laser displacement transducer

Gao

Feng

Cui

2014

Optics and Lasers in Engineering

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A Novel Method for Dynamically Measuring Diameters of Train Wheels Using Laser Displacement Transducers

Cited by 9 publications

References 0 publications

A High-Precision Method for Dynamically Measuring Train Wheel Diameter Using Three Laser Displacement Transducers

A High-Precision Method for Dynamically Measuring Train Wheel Diameter Using Three Laser Displacement Transducers

Improved Tilting Method for Automobile Mass Center Measurement Based on Simulation Analysis

A simple method for dynamically measuring the diameters of train wheels using a one-dimensional laser displacement transducer

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