The research on the performance of linear ultrasonic motor under different temperature

Linear ultrasonic motor (LUSM) is a new type of driver. LUSM has many advantages, so it is taken seriously in aeronautics and astronautics. But, because of the deficiency of studies on the performance of LUSM in abnormal temperature, it's necessary to do research on the performance of LUSM in different ambient temperature, to confirm whether it can work under abnormal temperature and how it works. In this research, we use V type LUSM (VLUSM) as the test object, owing to that VLUSM is one basic type of linear ultrasonic motor. When doing research, we pay close attention to the moment of force and the rotation rate of VLUSM, to discover how much they change in abnormal temperature environment. This research compares all datum partitioned by different temperature, and uses figures to show the tendency of those mechanical properties in abnormal temperature. At the same time, we explain the changing by means of theories. Finally, through detailed experimental demonstration, we believe that as the temperature rises, both moment of force and rotation rate of VLUSM increase, and we can also conclude that VLUSM can work normally under abnormal temperature environment.