A Quasi-Actual Mechatronic Instrument for Realistically Testing Roller-Piston Friction Pairs

作者：Xiaolong Zhang, Junhui Zhang, Dingrong Zeng, Jing Zhao, Bing Xu, Chao Zhang · 发表于：IEEE/ASME Transactions on Mechatronics · 年份：2023 · DOI：10.1109/tmech.2023.3301117 · 被引用次数：23 · 研究领域：Hydraulic and Pneumatic Systems、Mechanics and Biomechanics Studies、Oil and Gas Production Techniques

Cam-lobe radical-piston hydraulic motors can achieve ultrahigh power rotary output (up to megawatts), which are widely used in tunnel boring machines, dredgers, and other high-end equipment. In these applications, hydraulic motors always operate in complex and drastically changing conditions, causing their key roller-piston friction pairs to be vulnerable to wear and failure. However, there is a lack of easy-to-use and low-cost testing instruments to investigate the failure behavior of friction pairs and verify the reliability of the developed friction pairs. For that, this study developed a quasi-actual mechatronic instrument that can realistically reproduce various actual operating conditions to achieve quasi-actual testing of the friction pair. This instrument is composed of three parts: a testing bench, a hydraulic system, and a control system. The hydraulic system with a proportional relief valve is responsible for adjusting the hydraulic pressure on the piston in the testing bench, while the roller speed is controlled by a servo motor in the testing bench. To realize the quasi-actual control, an improved fuzzy PID and PI control algorithms embedded in the control system are proposed to real-time regulate the hydraulic pressure and roller speed, respectively. Finally, several quasi-actual testing experiments are conducted to reproduce different operating conditions of roller-piston friction pairs in a tunnel boring machine. The experimental results show that quasi-actual...