Research on Acceleration Performance Optimization of Large Inertia Hydraulic Actuator Based on Main Valve Input Shaping
In order to optimize the acceleration performance of a large inertia hydraulic actuator, this paper proposes a main valve input shaping control strategy, which makes the valve flow supply match the load-control demand by adjusting the main valve flow growth rate. Taking a load-independent flow distr...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Machines |
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| Online Access: | https://www.mdpi.com/2075-1702/10/11/987 |
| _version_ | 1797467520334036992 |
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| author | Wenbo Fu Xiaoming Yuan Yongquan Li Lijie Zhang |
| author_facet | Wenbo Fu Xiaoming Yuan Yongquan Li Lijie Zhang |
| author_sort | Wenbo Fu |
| collection | DOAJ |
| description | In order to optimize the acceleration performance of a large inertia hydraulic actuator, this paper proposes a main valve input shaping control strategy, which makes the valve flow supply match the load-control demand by adjusting the main valve flow growth rate. Taking a load-independent flow distribution system as the research object, and aiming at the problems of large pressure overshoot, excessive overflow and oscillation tendency during the actuator acceleration process, this paper divides the acceleration process into the pressure build-up condition, the inertia-acceleration condition and the stable-flow regulation condition according to the change characteristics of the actuator driving pressure, and divides the main valve control signal into five stages to design the valve flow growth rate, thereby smoothing the driving pressure fluctuations by adjusting the actuator inertial load and mitigating the pressure release process. Based on the key structure-hydraulic parameters and test data of a 6-ton excavator, a virtual excavator that can accurately simulate the swing action and boom lifting action is built, and the software-in-the-loop test of the input-shaping control algorithm is carried out. The test results indicate that the proposed control strategy can effectively suppress the pressure overshoot, oscillation, and flow overmatching, thereby improving the dynamic stability and energy efficiency of the system. |
| first_indexed | 2024-03-09T18:54:51Z |
| format | Article |
| id | doaj.art-758552149278462f9bca4b7dc6d8df85 |
| institution | Directory Open Access Journal |
| issn | 2075-1702 |
| language | English |
| last_indexed | 2024-03-09T18:54:51Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Machines |
| spelling | doaj.art-758552149278462f9bca4b7dc6d8df852023-11-24T05:32:32ZengMDPI AGMachines2075-17022022-10-01101198710.3390/machines10110987Research on Acceleration Performance Optimization of Large Inertia Hydraulic Actuator Based on Main Valve Input ShapingWenbo Fu0Xiaoming Yuan1Yongquan Li2Lijie Zhang3Hebei Key Laboratory of Heavy Machinery Fluid Power Transmission and Control, Yanshan University, Qinhuangdao 066004, ChinaHebei Key Laboratory of Heavy Machinery Fluid Power Transmission and Control, Yanshan University, Qinhuangdao 066004, ChinaHebei Key Laboratory of Heavy Machinery Fluid Power Transmission and Control, Yanshan University, Qinhuangdao 066004, ChinaHebei Key Laboratory of Heavy Machinery Fluid Power Transmission and Control, Yanshan University, Qinhuangdao 066004, ChinaIn order to optimize the acceleration performance of a large inertia hydraulic actuator, this paper proposes a main valve input shaping control strategy, which makes the valve flow supply match the load-control demand by adjusting the main valve flow growth rate. Taking a load-independent flow distribution system as the research object, and aiming at the problems of large pressure overshoot, excessive overflow and oscillation tendency during the actuator acceleration process, this paper divides the acceleration process into the pressure build-up condition, the inertia-acceleration condition and the stable-flow regulation condition according to the change characteristics of the actuator driving pressure, and divides the main valve control signal into five stages to design the valve flow growth rate, thereby smoothing the driving pressure fluctuations by adjusting the actuator inertial load and mitigating the pressure release process. Based on the key structure-hydraulic parameters and test data of a 6-ton excavator, a virtual excavator that can accurately simulate the swing action and boom lifting action is built, and the software-in-the-loop test of the input-shaping control algorithm is carried out. The test results indicate that the proposed control strategy can effectively suppress the pressure overshoot, oscillation, and flow overmatching, thereby improving the dynamic stability and energy efficiency of the system.https://www.mdpi.com/2075-1702/10/11/987hydraulic actuatoracceleration performanceoptimizevalveinput shapingcontrol |
| spellingShingle | Wenbo Fu Xiaoming Yuan Yongquan Li Lijie Zhang Research on Acceleration Performance Optimization of Large Inertia Hydraulic Actuator Based on Main Valve Input Shaping Machines hydraulic actuator acceleration performance optimize valve input shaping control |
| title | Research on Acceleration Performance Optimization of Large Inertia Hydraulic Actuator Based on Main Valve Input Shaping |
| title_full | Research on Acceleration Performance Optimization of Large Inertia Hydraulic Actuator Based on Main Valve Input Shaping |
| title_fullStr | Research on Acceleration Performance Optimization of Large Inertia Hydraulic Actuator Based on Main Valve Input Shaping |
| title_full_unstemmed | Research on Acceleration Performance Optimization of Large Inertia Hydraulic Actuator Based on Main Valve Input Shaping |
| title_short | Research on Acceleration Performance Optimization of Large Inertia Hydraulic Actuator Based on Main Valve Input Shaping |
| title_sort | research on acceleration performance optimization of large inertia hydraulic actuator based on main valve input shaping |
| topic | hydraulic actuator acceleration performance optimize valve input shaping control |
| url | https://www.mdpi.com/2075-1702/10/11/987 |
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