Experimental Study on Tire Contact Patch Characteristics for Vehicle Handling with Enhanced Optical Measuring System

2021 ◽  
Vol 5 (3) ◽  
Author(s):  
Aakash Swami ◽  
Chao Liu ◽  
Jan Kubenz ◽  
Günther Prokop ◽  
Ashok Kumar Pandey
Keyword(s):  
Experimental Study ◽  
Measuring System ◽  
Vehicle Handling ◽  
Contact Patch ◽  
Optical Measuring ◽  
Patch Characteristics

scholarly journals The Optical Measuring System of Universal Time: Digital Zenith Tube

2021 ◽  
Vol 1739 ◽  
pp. 012015
Author(s):  
Hongbing Cai ◽  
Jingsong Xu ◽  
Shaojie Chen
Keyword(s):  
Universal Time ◽  
Measuring System ◽  
Optical Measuring

MAGNETOREOLOGICAL JOURNAL BEARING: EXPERIMENTAL RESULTS

2020 ◽  
Vol 3 ◽  
pp. 83-90
Author(s):  
A.S. FETISOV ◽  
V.O. TYURIN
Keyword(s):  
Experimental Study ◽  
Journal Bearing ◽  
Experimental Results ◽  
Measuring System ◽  
Information Measuring ◽  
Experimental Stand ◽  
Information Measuring System

The article presents the classification of magnetorheological devices. The classification of bearings of rotor machines is given. An experimental stand is described that includes a magnetorheological journal bearing. The information–measuring system of the experimental stand is presented. The results of experimental study is presented.

Dynamic Tests And Application Of The Electron-Optical Measuring System

1983 ◽  
Author(s):  
T. Hiruma ◽  
H. Ilida ◽  
E. Inuzuka ◽  
K. Kamiya ◽  
Y. Tsuchiya ◽  
...  
Keyword(s):  
Measuring System ◽  
Dynamic Tests ◽  
Optical Measuring

A Robust Feature Points Matching Algorithm in 3D Optical Measuring System

2011 ◽  
Vol 383-390 ◽  
pp. 5193-5199 ◽  
Author(s):  
Jian Ying Yuan ◽  
Xian Yong Liu ◽  
Zhi Qiang Qiu
Keyword(s):  
3D Reconstruction ◽  
Digital Camera ◽  
Image Data ◽  
Epipolar Geometry ◽  
Bundle Adjustment ◽  
Measuring System ◽  
Feature Points ◽  
3 Dimensional ◽  
Feature Points Matching ◽  
Optical Measuring

In optical measuring system with a handheld digital camera, image points matching is very important for 3-dimensional(3D) reconstruction. The traditional matching algorithms are usually based on epipolar geometry or multi-base lines. Mistaken matching points can not be eliminated by epipolar geometry and many matching points will be lost by multi-base lines. In this paper, a robust algorithm is presented to eliminate mistaken matching feature points in the process of 3D reconstruction from multiple images. The algorithm include three steps: (1) pre-matching the feature points using constraints of epipolar geometry and image topological structure firstly; (2) eliminating the mistaken matching points by the principle of triangulation in multi-images; (3) refining camera external parameters by bundle adjustment. After the external parameters of every image refined, repeat step (1) to step (3) until all the feature points been matched. Comparative experiments with real image data have shown that mistaken matching feature points can be effectively eliminated, and nearly no matching points have been lost, which have a better performance than traditonal matching algorithms do.

Impact of Human Factors on Measurement Errors

2013 ◽  
pp. 274-291 ◽  
Author(s):  
Vinodkumar Jacob ◽  
M. Bhasi ◽  
R. Gopikakumari
Keyword(s):  
Experimental Study ◽  
Statistical Analysis ◽  
Measurement Error ◽  
Measurement Errors ◽  
Human Error ◽  
Quantitative Comparison ◽  
Measuring System ◽  
Measuring Instrument ◽  
Related Factors ◽  
Human Errors

Measurement is the act or the result, of a quantitative comparison between a given quantity and a quantity of the same kind chosen as a unit. It is for observing and testing scientific and technological investigations and generally agreed that all measurements contain errors. In a measuring system where both a measuring instrument and a human being taking the measurement using a preset process, the measurement error could be due to the instrument, the process or human error. This study is devoted to understanding the human errors in measurement. Work and human involvement related factors that could affect measurement errors have been identified. An experimental study has been conducted using different subjects where the factors were changed one at a time and the measurements made by them recorded. Errors in measurement were then calculated and the data so obtained was subject to statistical analysis to draw conclusions regarding the influence of different factors on human errors in measurement. The findings are presented in the paper.

Tester for Study the Influence of Tire Vertical Load and Tire Internal Pressure on Tire Cornering Stiffness

2016 ◽  
Vol 822 ◽  
pp. 89-93
Author(s):  
Hristina Georgieva ◽  
Nikolai Pavlov ◽  
Lilo Kunchev
Keyword(s):  
Experimental Study ◽  
Internal Pressure ◽  
Experimental Methodology ◽  
Vertical Load ◽  
Vehicle Handling ◽  
Index Group ◽  
Study Process

This article presents the results of experimental study of the influence of tire vertical load and tire internal pressure on tire cornering stiffness. The results have been obtained with a mobile tire tester which was developed at department “CEAET” at TU-SOFIA. The information about the dates of size load, index speed, index group, wearing out is obtained from Goodyear website, www.goodyear.eu. The study process concerns three main areas: (i) the choice of the experimental methodology; (ii) calculation and analysis of the data; (iii) discussion and conclusion. The obtained results give the possibility to determinate the role of tire on vehicle handling and stability.

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