Volume 39 Issue 3
May  2020
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Zhao Quan, Wen Guojun, Liu Haojie, Wang Yudan, Liu Qingtao. Design of virtual training platform for construction machinery based on Stewart[J]. Bulletin of Geological Science and Technology, 2020, 39(3): 216-221. doi: 10.19509/j.cnki.dzkq.2020.0324
Citation: Zhao Quan, Wen Guojun, Liu Haojie, Wang Yudan, Liu Qingtao. Design of virtual training platform for construction machinery based on Stewart[J]. Bulletin of Geological Science and Technology, 2020, 39(3): 216-221. doi: 10.19509/j.cnki.dzkq.2020.0324

Design of virtual training platform for construction machinery based on Stewart

doi: 10.19509/j.cnki.dzkq.2020.0324
  • Received Date: 19 Mar 2019
  • In order to enhance the virtual training immersion effect of construction machinery, a six-degree-of-freedom(6-DOF) seat platform is developed based on Stewart 6-DOF mechanism, including a parallel motion mechanism, a hydraulic pump station, and a PLC control system. The positional parameters of the motion platform are determined by the driving characteristics of the construction machinery, and the data interaction that conducted with the upper computer software is established by MATLAB. After the kinematics inverse solution is calculated, the length change value of each hydraulic cylinder is obtained. The PLC controller processes the instructions and sends the commands to control the flow of the electro-hydraulic proportional valve, and drive the six parallel hydraulic cylinders to expand, so that the moving platform presents different position and posture. Based on the above principles, a physical platform is built and tested according to the driving characteristics. The test results show that the platform could simulate the posture of construction machinery under different working conditions, so as to improve the immersion of virtual trainers.

     

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