Power management of multi-source network hydraulic system with multiple actuators

Yao, Jianyong; Wang, Pei; Yin, Yu; Li, Mandi

doi:10.1016/j.enconman.2020.113247

Cited by 12 publications

(2 citation statements)

References 22 publications

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“…The energy for the CVA comes from an engine-driven pump (EDP), and the hydraulic power is transmitted through thin-walled high-pressure pipelines [3]. When using a centralized oil source to drive multiple surfaces, power matching is difficult and inevitably results in significant power loss and heat [4]. Moreover, the total length of hydraulic pipelines in large aircraft is thousands of meters, and risks such as vibration fatigue, seal failure, damage, and rupture threaten the reliability and safety of aviation hydraulic systems [5].…”

Section: Introductionmentioning

confidence: 99%

Quantitative Comparative Study on the Performance of a Valve-Controlled Actuator and Electro-Hydrostatic Actuator

Yang,

Lu,

Jiang

et al. 2024

Actuators

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The development of the electrification of aircraft has prompted aviation hydraulic systems to shift from traditional centralized valve actuators (CVAs) to electro-hydrostatic actuators (EHAs). In this paper, aiming at the demand for a quantitative comparison of performance between CVAs and EHAs, CVA and EHA prototypes with the same power level and test platform were developed. Then, based on the power flow and dynamic models of the CVA and EHA, simulation and experimental comparative tests were conducted using different load spectrum test conditions and step response test conditions. The comparative test results showed that the efficiency of the EHA was better than that of the CVA, and the dynamic response of the CVA was better than that of the EHA. Finally, a power loss quantification and parameter sensitivity analysis were performed to reveal the impact of different parameters on the different power losses and to provide suggestions for improving the performance of CVAs and EHAs.

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Section: Introductionmentioning

confidence: 99%

Quantitative Comparative Study on the Performance of a Valve-Controlled Actuator and Electro-Hydrostatic Actuator

Yang,

Lu,

Jiang

et al. 2024

Actuators

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show abstract

“…e research on multicylinder synchronous mainly focuses on the control valve, control algorithm, and the load characteristics.Wu et al [11][12][13] studied the dual-cylinder synchronization control system of the forging hydraulic presses. Yao et al [14] developed a multisource network hydraulic system with multiple actuators and a corresponding power management strategy to reduce throttling losses and recover energy. e popular intelligent controller was used for hydraulic servo systems by Si et al [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Research on the Synchronization and Shock Characteristics of an Air Adjustment Mechanism for Cluster-Type DTH Hammers under Partial Loads

Lou

Chen

Qin

et al. 2022

Shock and Vibration

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Cluster down-the-hole (DTH) hammers are often used in large-diameter hard rock drilling operations. Due to complex rock formation conditions, cluster DTH hammers cannot adjust the working airflow in time according to rock formation conditions, resulting in frequent damage to cluster DTH hammers and low work efficiency. Aiming at this problem, this paper proposes an airflow adjustment mechanism as a solution. In this paper, the operation stability and airflow adjustment characteristics of the adjustment mechanism are studied. The impact characteristics and driving force variation characteristics of the adjustment mechanism under different speeds and loading modes are analyzed, and the results show that the movement impact of the adjustment mechanism increases with the increase of the movement speed of the driving actuator under the same loading mode. With the increase of the eccentric load, the critical movement speed of the driving actuator decreases when the adjustment mechanism moves without impact. The test verifies the synchronization characteristics of the adjustment mechanism under different load modes and different control valves. The results show that, under the condition of uniform load, the synchronization accuracy of the dividing/focusing valve and the proportional valve is good. With the increase of the eccentric load difference, the synchronization performance of the dividing/focusing valve becomes worse, and the average error increases. The test results in this paper are of great significance for guiding the engineering design of cluster DTH hammers.

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Developing a data-driven hydraulic excavator fuel consumption prediction system based on deep learning

Song

et al. 2023

Advanced Engineering Informatics

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Power management of multi-source network hydraulic system with multiple actuators

Cited by 12 publications

References 22 publications

Quantitative Comparative Study on the Performance of a Valve-Controlled Actuator and Electro-Hydrostatic Actuator

Quantitative Comparative Study on the Performance of a Valve-Controlled Actuator and Electro-Hydrostatic Actuator

Research on the Synchronization and Shock Characteristics of an Air Adjustment Mechanism for Cluster-Type DTH Hammers under Partial Loads

Developing a data-driven hydraulic excavator fuel consumption prediction system based on deep learning

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