Field performance of an electric–hydraulic control system for vibrating subsoiler with flexible tines

Wang, Y.; Zhang, Di; Li, Yang; Cui, Tao; Zhang, W.; Qi, Bing; Li, Y.; Zhong, X.P.

doi:10.1016/j.compag.2020.105377

Cited by 7 publications

(4 citation statements)

References 19 publications

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“…The output of the fuzzy controller must be de-fuzzified because the output of the PID controller used in this study should be accurate data [35,36] . Fuzzy judgment should be used in converting output into a precise quantity to achieve a good operation result of the membership function and obtain a precise control effect.…”

Section: Control Of Tillage Depth Through the Application Of The Pid ...mentioning

confidence: 99%

Design and experiment of fuzzy-PID based tillage depth control system for a self-propelled electric tiller

Xiao,

Ma,

Wang

et al. 2023

International Journal of Agricultural and Biological Engineering

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The research on the self-propelled electric tiller is vital for further improving the quality and efficiency of greenhouse rotary tillage operation, reducing the work intensity and operation risk of operators, and achieving environmentally friendly characteristics. Most of the existing self-propelled tillers rely on manual adjustment of the tillage depth. Moreover, the consistency and stability of the tillage depth are difficult to guarantee. In this study, the automatic control method of tillage depth of a self-propelled electric tiller is investigated. A method of applying the fuzzy PID (Proportional Integral Derivative) control method to the tillage depth adjustment system of a tiller is also proposed to realize automatic control. The system uses the real-time detection of the resistance sensor and angle sensor. The controller runs the electronically controlled hydraulic system to adjust the force and position comprehensively. The fuzzy control algorithm is used in the operation error control to realize the double-parameter control of the tillage depth. The simulation and experimental verification of the system are conducted. Results show that the control system applying fuzzy PID can improve the soil breaking rate by 3% in the operation process based on reducing the stability variation of tillage depth by 24%. The control strategy can reach the set value of tillage depth quickly and accurately. It can also meet the requirement of tillage depth consistency during the operation.

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Section: Control Of Tillage Depth Through the Application Of The Pid ...mentioning

confidence: 99%

Design and experiment of fuzzy-PID based tillage depth control system for a self-propelled electric tiller

Xiao,

Ma,

Wang

et al. 2023

International Journal of Agricultural and Biological Engineering

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“…The vibration mode also has an efficient resistance reduction capability [9]. Whether it is forced vibration or self-excited vibration, both methods utilize the periodic reciprocating mechanical characteristics of the vibration phenomenon and the granular characteristics of soil materials, causing the soil to be cut to be quickly loosened and achieve the purpose of resistance reduction [10,11].…”

Section: Introductionmentioning

confidence: 99%

Research on the Resistance Reduction Law of Self-Excited a Resonant Circular Arc-Surface Bulldozing Plate Based on the Discrete Element Method

Guo,

Qiu,

Yan

et al. 2023

Agriculture

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We explore the mechanism and law of reducing the resistance of soil cutting tools by achieving the self-excited vibration mode through the modification of the soil-engaging surface spectrum. Around the fundamental resonance point of the soil, and superimposing geometric waveforms of different spatial frequencies and amplitudes on the basis of the circular arc surface base directrix, 18 bulldozing plate models with different soil-engaging surface spectrum structures were designed and manufactured. By conducting a discrete element method (DEM) simulation of the working process of the bulldozing plate and comparing the working resistance of the soil-engaging components with the results of the soil bin test, the microscopic process of soil disturbance was further revealed from the perspective of simulation. The results indicate that the self-excited vibrating circular arc-surface bulldozing plate could effectively improve the resistance reduction effect during the operation around the resonance point. With this model, the average error of the horizontal working resistance was 7.52%, and the average error of the vertical working resistance was 21.71%. The analysis of the soil microscopic disturbance process by DEM simulation further verified the correctness of the macroscopic test results. The research work has an important reference value for both the vibration resistance reduction design of soil cutting tools and resistance reduction design of soil-engaging surfaces’ geometric structure modification.

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“…Eng; Jicheng Wang, ST. Radite et al, (2016), studied the application of vibration in reducing the drag of subsoiling, meanwhile, they compared and analyzed the vibration characteristics of different types of subsoiling shovels when doing an operation. Wang et al, (2020), studied electric-hydraulic control technology to improve the adaptability of the vibrating subsoiler to various soil conditions by adjusting the working pressure of the excitation element. Hilal et al, (2021), studied deep loader vibrating and non-vibrating wings and two penetration angles (45°and 55°) in soil at speeds of 2.88, 3.6 and 4.5 km/h.…”

Section: Introductionmentioning

confidence: 99%

Test and Analysis of Vibration Characteristics of Vibration Subsoiler

XiangQian

ZHENG

et al. 2022

INMATEH

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In this paper, the vibration characteristics of the 1ST-460 vibration subsoiler was analyzed. In order to solve the problem of vibration imbalance caused by the vibration component under the action of multiple groups of vibration shovels, the optimal combination mode of the vibration component under the interaction of multiple groups of shovels was obtained. Piezoelectric accelerometers are fixed symmetrically on the frame of the subsoiler to measure the vibration at different positions. TST5910 dynamic signal test and analysis system is used to collect and process the acceleration data. Non-load tests were carried out with different initial eccentric phase angle combination. Results showed that the combination of [0°, 180°, 180°, 0°] (symmetrically up and down staggered vibration) for the eccentric vibration component of four shovels is the optimal initial phase combination, which can lead to the minimum adverse vibration on the frame. Further tests were conducted under different vibrating frequency and amplitude/eccentric with optimal phase combination. The results showed that, when amplitude/eccentricity ratio was 2.0 and 2.5, frequency of vibration was 6.7 and 8.3 Hz, the required traction force of the subsoiler was stable and significantly reduced, which can improve the soil loosening performance and reduce the harmful vibration on the tractor.

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Field performance of an electric–hydraulic control system for vibrating subsoiler with flexible tines

Cited by 7 publications

References 19 publications

Design and experiment of fuzzy-PID based tillage depth control system for a self-propelled electric tiller

Design and experiment of fuzzy-PID based tillage depth control system for a self-propelled electric tiller

Research on the Resistance Reduction Law of Self-Excited a Resonant Circular Arc-Surface Bulldozing Plate Based on the Discrete Element Method

Test and Analysis of Vibration Characteristics of Vibration Subsoiler

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