Numerical study of elastic deformation of the contact surface of an RVA end seal

Abstract

When the vane seal slides on the contact surface of the end seal of a hydraulic rotary vane actuator (RVA), this surface undergoes elastic deformation, and even seal failure may occur through the combined action of the normal contact pressure and tangential force. In this article, a model of the elastic deformation of the contact surface of the end seal is established, and factors influencing elastic deformation are studied. The results show that deformation of the contact surface of the end seal in the x– and y–direction increases with an increase in the pre-tightening force. However, deformation of the contact surface of the end seal in the x– and y–direction is reduced as the vane-seal radius and the end seal elastic modulus increase.

Research on laser repair technology for surface defects of flywheel disc steel plate

“…However, the repair area is thin, the efficiency is low and the surface roughness after repair is large, and the degree of repair depends on the repair level of workers [2,3]. The repair method of thermal spraying is to use a heat source to heat the thermal spraying material until it melts, atomize it, and then spray it onto the area of the cylinder block to be repaired [4]. And by combining with the cylinder body to form a functional coating, the repair purpose is achieved.…”