Validating the durability testing method for large-sized vehicles based on dynamic characteristics of shock absorbers- extended tests
1
Wroclaw University Science of Technology, Faculty of Mechanical Engineering, Department of Machine Tools and Mechanical Technologies
2
Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Lukasiewicza 5,
55-371 Wrocław, Poland
3
Department of Vehicles and Fundamentals of Machine Design, Lodz University of Technology, 90-924 Lodz, Poland
Corresponding author
Marek Stembalski
Wroclaw University Science of Technology, Faculty of Mechanical Engineering, Department of Machine Tools and Mechanical Technologies
Wroclaw University Science of Technology, Faculty of Mechanical Engineering, Department of Machine Tools and Mechanical Technologies
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ABSTRACT
Road simulators are one of the methods of conducting durability tests. The article evaluates the methodology developed by the authors and described in earlier publications for durability tests on road vehicles using the Road Simulator. This evaluation was conducted by comparing the dynamic characteristics of road shock absorbers from 49 semi-trailers of different forwarders and five such vehicles after durability testing. As a benchmark, the characteristics of new shock absorbers were determined in the same way. The authors also verified the effect of shock absorber operating temperature on the effectiveness of the damping force. Tests were conducted for temperatures of -20 C, 20 C and 110 C. The relationship between the maximum damping force of the shock absorber and the mileage of the vehicle in which it was installed was also determined.
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