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Development of Comprehensive Suspension Tester for Large Off-Highway Dump Trucks
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English
Abstract
This paper introduces a laboratory-developed tester for the front suspension of off-highway dump trucks. In dump truck movement at jobsites, the front suspension system is subjected to three-way load, i.e. in the vertical, horizontal and turning (steering) directions. Using three actuators, controllers and a computer, we conducted a lab simulation of such loads. With this tester, various quality assurance tests were carried out to provide reliable data in a short period of time. These tests were as follows:
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(1)
Performance test to measure suspension characteristics such as spring stiffness, damping coefficient and internal friction
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(2)
Stress measurement test to confirm structural strength
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(3)
Endurance test to confirm durability and longevity of parts subject to wear, such as seals and bushings
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(4)
Temperature environmental test to confirm sealing performance across a very low to high temperature range
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(5)
Dust environmental test to confirm sealing performance against dust
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Authors
Topic
Citation
Saito, T. and Sasano, S., "Development of Comprehensive Suspension Tester for Large Off-Highway Dump Trucks," SAE Technical Paper 932463, 1993, https://doi.org/10.4271/932463.Also In
References
- Nagai T. et al. HD785-3 Electronic control suspension Komatsu technical report 1988 34 122
- Kondo S. Relation between haul road and damage of off-highway dump trucks SAE paper 840778