Paper 21: Measurements of Friction and Wear under Conditions of Dynamic Excitation
Autor: | G.W. Rowe, K. Barker, H. Kaliszer |
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Rok vydání: | 1967 |
Předmět: | |
Zdroj: | Proceedings of the Institution of Mechanical Engineers, Conference Proceedings. 182:175-182 |
ISSN: | 2058-3362 0367-8849 |
DOI: | 10.1243/pime_conf_1967_182_420_02 |
Popis: | An experimental study is being made of the friction and wear of pins of different materials in sliding contact with a rotating mild steel disc. A load is applied by dead weights and the excitation is introduced either by out-of-balance in the wheel or by an electromechanical vibrator attached to the loading arm. Stepless speed variation up to 60 ft/s is provided. The friction force, temperature, and worn volume are recorded continuously. Under light loads a synchronous impulsive force appears to decrease the shear strength of the lubricant–metal interface, whereas under a heavy load it does not have a significant effect on the interfacial contact. Synchronous vibrations alter the wear pattern of a phosphor-bronze pin. The running-in period is extended, but the final wear rate is greater. Changes in the running-in characteristics of a steel pin are not observed. |
Databáze: | OpenAIRE |
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