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Zhao, Hui
Applied mathematics and nonlinear sciences, 01/2024, Volume: 9, Issue: 1Journal Article
As an important component of the hydraulic system, the performance of the hydraulic pump and motor greatly influences the performance of the whole hydraulic system, so it is necessary to study the hydraulic pump and motor test system. In this paper, the design of the mechanical power recovery hydraulic pump motor test system is completed through theoretical analysis and calculation; and the AMEsim simulation software is used to numerically simulate the test process of the hydraulic pump and motor test system, analyze the system loading method of the test system, recovery efficiency and simulation of typical working conditions; meanwhile, the control strategy of adjusting the single variable motor displacement to control the minimum overflow of the system is simulated and analyzed Simulation analysis is also performed for the control strategy of adjusting the univariate motor displacement to control the minimum overflow. Simulation results show that: the recovery efficiency of the mechanical power recovery hydraulic pump motor test system varies with the size of the overflow; when the system is the minimum overflow value, the optimal recovery efficiency of 75% is achieved, and the recovery performance is improved by 32% compared with other power methods. The mechanical power recovery hydraulic pump motor test system designed in this paper solves the shortcomings of high energy consumption, low recovery efficiency, and small application range of the previous single way of loading; at the same time, based on meeting the function and performance, the hydraulic pump and motor test system are integrated into one system, and the applicability and scalability are significantly improved.
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