期刊
ISA TRANSACTIONS
卷 126, 期 -, 页码 649-665出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.isatra.2021.08.028
关键词
Hydraulic drive; Bond graph; Pump displacement; Motor displacement; Steady-state losses
资金
- DST (Department of Science and Technology) , India under FIST project [SR/FST/ET-I/2018/180]
This work presents a scheme of a dual input-single output closed-circuit hydraulic drive and analyzes its dynamics through modeling and simulation. The study considers non-linear losses and temporal behaviors of rotary actuators, and discusses the effects of parameter changes on the drive's performance. The system model is validated by comparing test data with simulation results, providing useful insights for application engineers in selecting and developing similar drives for mobile equipment.
This work presents a scheme of a dual input-single output closed-circuit hydraulic drive consisting of a pump and a hydraulic motor both variable displacement axial-piston type. It analyzes the dynamics of the hydraulic drive system through modeling and simulation. The model considers state-dependent non-linear losses and the temporal behaviors of the rotary actuators identified from the test data and these models are also considered in the simulation studies. The work also discusses the effects of nominal changes in the values of the decisive parameters on the drive's predicted performance to justify its practical range of application. Without dismantling the system components, comparing the test data with the simulation results verifies the system model for the drive's various working conditions. This aspect is essential for a priori analysis of a system and lends itself to be helpful for application engineers for the initial selection and development of a similar drive used in the mobile equipment. (C) 2021 ISA. Published by Elsevier Ltd. All rights reserved.
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