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您的检索式：作者名="Petr BARTOS"
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| 1 | 基于HMCVT的湿式离合器动态接合特性研究显示文摘本文研究了设计参数对液压机械式无级变速器离合器接合过程的影响。首先,使用SimulationX软件开发了动力传动系的模型,并使用离合器换档实验验证了模型的正确性。然后,将摩擦系数函数与测试数据进行拟合,得出适用于本文的摩擦系数模型。最后,基于摩擦力矩和摩擦力的评价指标,对两组设计参数(油压和摩擦系数)进行了仿真,并从理论上解释了变化规律。根据仿真结果,高油压和摩擦系数可以缩短打滑时间。大的油压可以增加峰值扭矩,但是摩擦系数对峰值扭矩的影响不是很大。摩擦力在3.2 s达到最大值,峰值随着油压和摩擦系数的增加而增加。油压对离合器接合和热性能的影响大于摩擦系数。该研究可为离合器的工作可靠性研究提供参考。 | 赵静 肖茂华 Petr BARTOS Andrea BOHATA | 2021 | Journal of Central South University2021，28，5： | 4 |
| 2 | 基于CS-BP神经网络的巡检机器人位移补偿方法研究显示文摘智能巡检机器人沿着固定轨迹进行巡检工作时所产生的位移误差会不断地增加,从而偏离既定的巡检路线。因此,提出一种基于CS-BP神经网络的位移补偿方法,利用布谷鸟搜索算法对BP神经网络的权值与阈值进行优化,得到性能最为优异的神经网络结构。试验表明,理论位移曲线乘以通过神经网络输出的位移补偿系数后得到的补偿后的位移曲线与实际位移曲线更加接近,其位移误差远远小于未经补偿的理论位移曲线,试验结果在58.8s时,经过CS-BP神经网络补偿后输出的位移与实际位移能够维持在3cm左右的偏差。该位移补偿具有可行性,能够有效缓解智能巡检机器人的运动路径偏离巡检路线的问题。 | 王星辰 潘伟 周立春 侯英勇 Petr Bartos 肖茂华 | 2022 | 智能化农业装备学报(中英文)2022，3，2： | 0 |
| 3 | Design and experiment of fuzzy-PID based tillage depth control system for a self-propelled electric tiller显示文摘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. | Maohua Xiao Ye Ma Chen Wang Junyun Chen Yejun Zhu Petr Bartos Guosheng Geng | 2023 | International Journal of Agricultural and Biological Engineering2023，16，4： | 0 |
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