Vibration suction is a kind of suction method for robots which was newly introduced by researchers. A new mathematical model of vibration suction was brought forward and a testing device was designed to measure the air pressure of the inner chamber of the suction cup. Experiments under different vibration parameters including surface, amplitude and frequency were carried out and the results of the experiments confirm the accuracy of the new model. Stable suction condition was studied in order to achieve suction to wall. According to the theory of vibration suction, a new type of vibration suction module was designed. A performance test experiment was carried out for vibration suction module. The test was carried out to measure the failure pull, the failure flexural torque and the failure torque moment. The result of the test proves the reliability of the module to be used as a foot of a wall climbing robot.
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