TY - GEN
T1 - Structural optimization and characteristics analysis of innovative flapper shape in a flapper-nozzle pilot valve
AU - Peng, Jinghui
AU - Aung, Nay Zar
AU - Li, Songjing
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/11/24
Y1 - 2015/11/24
N2 - Cavitation in the flow field and the resonance of armature-flapper assembly are two main possible mechanisms for the self-excited noise in flapper-nozzle pilot valves, which can greatly deteriorate the performance of the valves. In our previous attempt, it has been shown that compared to traditional flapper shape, rectangle-shaped flapper is more effective to reduce cavitation in the flapper-nozzle pilot valve. However, it is necessarily important to obtain the same structural properties as traditional flapper shape. To achieve this aim, structural optimization of the innovative flapper shape is performed. Then, the static and dynamic characteristics of the armature-flapper assembly using different flapper shapes are studied numerically using a validated numerical model. The simulated static and dynamic characteristics of the optimized innovative flapper shape agree well with that of the traditional one. Thus, an effective flapper shape which can reduce cavitation as well as maintain the original mechanical performances is proposed.
AB - Cavitation in the flow field and the resonance of armature-flapper assembly are two main possible mechanisms for the self-excited noise in flapper-nozzle pilot valves, which can greatly deteriorate the performance of the valves. In our previous attempt, it has been shown that compared to traditional flapper shape, rectangle-shaped flapper is more effective to reduce cavitation in the flapper-nozzle pilot valve. However, it is necessarily important to obtain the same structural properties as traditional flapper shape. To achieve this aim, structural optimization of the innovative flapper shape is performed. Then, the static and dynamic characteristics of the armature-flapper assembly using different flapper shapes are studied numerically using a validated numerical model. The simulated static and dynamic characteristics of the optimized innovative flapper shape agree well with that of the traditional one. Thus, an effective flapper shape which can reduce cavitation as well as maintain the original mechanical performances is proposed.
KW - dynamic response
KW - flapper-nozzle valve
KW - innovative flapper shape
KW - modal analysis
KW - optimization
UR - https://www.scopus.com/pages/publications/84962571408
U2 - 10.1109/FPM.2015.7337128
DO - 10.1109/FPM.2015.7337128
M3 - 会议稿件
AN - SCOPUS:84962571408
T3 - Proceedings of 2015 International Conference on Fluid Power and Mechatronics, FPM 2015
SP - 295
EP - 300
BT - Proceedings of 2015 International Conference on Fluid Power and Mechatronics, FPM 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th International Conference on Fluid Power and Mechatronics, FPM 2015
Y2 - 5 August 2015 through 7 August 2015
ER -