2020 Volume 14 Issue 4 Pages JAMDSM0058
This study explores a high reliability redundancy hydraulic power source, which includes shunt, throttle, relief, and switch modules that can continuously supply constant working pressure and steady flow in the case of input torsion and component failure. Considering the analysis of the working mechanism of each component of the energy control system, this study establishes the mathematical analysis theoretical model and selects the appropriate pressure and flow sensitive parameters, such as structure and spring. Through Amesim software, the physical simulation model is established, and the simulation research is conducted to analyze its static and dynamic characteristics. The redundancy fault tolerance capability of the system is also simulated and verified. Simulation results indicate that the output pressure and flow of the system can maintain stability with the fluctuation of input pressure. When the relief module fails in one branch, the output pressure of power energy remains unchanged, and the flow is halved. Although the maximum speed is attenuated, the system can still be guaranteed to run. The redundancy of energy system is realized, and the reliability of the system is greatly improved. The stable pressure and flow redundancy module designed in this study can keep the pressure and flow of the loop stable in the case of input pressure fluctuation. The system also has a good fault-tolerant function for all faults.
