Effect of temperature variation on frequency response of smart gear systems

Abstract

In a previous study, the frequency characteristics of a smart gear system were found to change with an increase in the gear-mesh number during an operational test and the accompanying increase in gear temperature. The objective of this study is to clarify the effect of frequency characteristic change due to rise in temperature by heating the Smart Gear system with a hot plate. Parameter identification was performed by applying a genetic algorithm into the return loss obtained from the heating test to identify parameters. Besides, parameters that are sensitive to temperature in the assumed model is identified. As a result, it was found that the frequency and Q-value decreased with increasing in gear temperature.