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Session: 3.5.1 - Coupled Multiphysics Simulation I
Paper Number: 158117
158117 - Research on Fluid Dynamics and Solid Mechanics in Piezoelectric Valves by Fluid- Structure Interaction Method
Abstract:
As a compactI/P signal conversion component, piezoelectric valves have extensive applications in fluid control. Compared to other types of signal conversion component, piezoelectric valves offer significant advantages such aslow noise and low power consumption. However, with the increasing demand for precision and speed in fluid control, it is essential to optimizing the structure of piezoelectric valve accordingly. The positions of the inlet and outlet affect the action speed of the valve core and the sealing effectiveness during closure.Therefore, this research aims to investigate the gas forces acting on the valve core and to improve the control precision and speed of the valve. A fluid structure interaction model was established based on the piezoelectricity, structural equations, and fluid dynamics. Utilizing the model, we investigate the gas forces on the valve core during the opening and closing process. The impact of gas forces caused by different inlet and outlet positions on the opening and closing speed of the valve core was analysed.Furthermore, we optimized the structural parameters of the piezoelectric valve using a BP neural networkto make its actionrapider. The results show that the optimized piezoelectric valve exhibits faster opening and closing speed.This work has certain reference value for the further optimization of the structure and control of piezoelectric valves.
Presenting Author: Ling-Feng Hang Zhejiang University
Presenting Author Biography:
Research on Fluid Dynamics and Solid Mechanics in Piezoelectric Valves by Fluid- Structure Interaction Method