ACTA AERONAUTICAET ASTRONAUTICA SINICA >
Mechanism Design and Dynamics Analysis of High Speed Parallel Robot for Dynamic Test in Low Speed Wind Tunnel
Received date: 2012-03-13
Revised date: 2012-07-16
Online published: 2013-03-29
Supported by
Defense Industrial Technology Development Program (JW20*2009035)
In order to simulate the multiple degrees of freedom (DOF) wind tunnel test of an aircraft, a high speed 6-DOF parallel mechanism for low speed wind tunnel tests is designed. The structural parameters of the mechanism are given by a comprehensive analysis of its requirements and restrictions. The characteristics of the parallel mechanism are analyzed. The vibration responses at the limit positions of the system are calculated by ANSYS software. At the same time, a flexible dynamic simulation for high speed emergency braking is analyzed by ADAMS tool; the characteristics of high speed braking are summerized based on a comparative analysis of the rigid and flexible brake loads. The simulation results prove that this study is important for the design of the prototype of a parallel mechanism and its application. The experiment shows that the parallel mechanism can fulfill both single degree and multi degree oscillatory motions; it also has a large work space (up to 30°/500 mm), high motion accuracy (up to 0.05°/0.5 mm) and high speed (up to 5 m/s). In conclusion, the high speed 6-DOF parallel mechanism has high motion capability to meet the wind tunnel test requirements.
XIE Zhijiang , SUN Xiaoyong , SUN Haisheng , ZHANG Jun . Mechanism Design and Dynamics Analysis of High Speed Parallel Robot for Dynamic Test in Low Speed Wind Tunnel[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2013 , 34(3) : 487 -494 . DOI: 10.7527/S1000-6893.2013.0084
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