scholarly journals Research on Key Control Technology of Intelligent Rolling Contact Fatigue Test Facility

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Jianyao Li ◽  
Juke Liang ◽  
Gubo Chen ◽  
Yan Yang
Keyword(s):  
Control System ◽  
Fatigue Test ◽  
Control Method ◽  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Rolling Contact ◽  
Test Equipment ◽  
Load Control ◽  
Average Error ◽  
Control Methods

An intelligent rolling contact fatigue test equipment is developed, and the control methods are presented. For obtaining the slip accurately, the control method based on master-slave synchronization is proposed. For controlling the loads in high precision, the control method took into consideration the influence by two factors, displacement and the load. The nonlinear interference and excess torque in load control are effectively suppressed. Based on the SIMOTION D425 which is the Siemens integrated motion control system, the control system architecture of the intelligent rolling contact fatigue test equipment is constructed. The solutions of slip ratio and the experimental load controlled by these methods are satisfactory with the requirement of design precision. In the validation experiment, the load control accuracy is ±3%, the average error of load control is 1.77%, and the average error of slip control is 0.26%. The experiment results show the proposed control methods are feasible and effective.

Mechanical Testing

2005 ◽  
pp. 311-327
Keyword(s):  
Fatigue Test ◽  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Mechanical Tests ◽  
Rolling Contact ◽  
Test Procedures ◽  
Single Tooth ◽  
Root Strength ◽  
Single Overload ◽  
Surface Durability

Abstract Mechanical tests are performed to evaluate the durability of gears under load. The chapter first discusses the processes involved in the computations of stress for test parameters of gear. Next, the chapter reviews the four areas of specimen characterization of a test program, namely dimensional, surface finish texture, metallurgical, and residual stress. The following section presents the tests that simulate gear action, namely the rolling contact fatigue test, the single-tooth fatigue test, the single-tooth single-overload test, and the single-tooth impact test. Finally, the chapter describes the test procedures for surface durability (pitting), root strength (bending), and scoring (or scuffing) testing.

Damage in Thermal-Sprayed WC-Co Coatings by Repeated Load

1997 ◽  
Author(s):  
T. Tajiri ◽  
N. Sakoda ◽  
S. Yamamoto ◽  
S. Watanabe
Keyword(s):  
Fatigue Test ◽  
Fatigue Cracks ◽  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Medium Carbon Steel ◽  
Rolling Contact ◽  
Surface Damages ◽  
Load Tests ◽  
Repeated Load ◽  
Thermally Sprayed

Abstract Two types of WC-12wt%Co powders, each manufactured by a different process, were thermally sprayed on a medium carbon steel by HVOF, and repeated load tests (rolling contact fatigue test and high cycles fatigue test) were carried out. The surface damages for the two types of coatings were investigated. It has been clear that the coating damages depend on the types of powders. It has been found that in rolling contact fatigue, there are the coatings, in which damage is characterized by delamination, and by a mixture of delamination and cracks. And it has also been found that in high cycles fatigue, there are the coatings, in which damage is characterized by net-like fatigue cracks, and by linear fatigue cracks.

Devise of the RCF Test Rig for Ceramic Bearing Ball by Design Methodology

2010 ◽  
Vol 44-47 ◽  
pp. 1773-1776
Author(s):  
Jing Ling Zhou ◽  
Guo Qing Wu ◽  
Xiao Yang Chen ◽  
Wei Nan Zhu ◽  
Yu Song Ren ◽  
...  
Keyword(s):  
Fatigue Test ◽  
Design Methodology ◽  
Function Analysis ◽  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Rolling Contact ◽  
Test Rig ◽  
Ceramic Bearing ◽  
Pure Rolling ◽  
Bearing Ball

It is presented to apply the designing methodology in design of an accelerated pure rolling contact fatigue test rig for ceramic bearing ball. Starting with function analysis, the request and structure of test rig are analysed. Meanwhile, the form matrix table is established, from which many designing schemes can be obtained. In accordance with several kinds of innovation schemes, the appraised decision of product is analyzed. The specimen machine is made according to the design scheme in the design of innovation.

Sign in / Sign up

Export Citation Format

Share Document