Sensitivity Analysis of System Deviation of Swing Drive Test Device in Motion Conditions

The swing test device is a complex electro-mechanical-hydraulic system. The test body floats on the water and is swayed by the hydraulic traction devices on both sides of the pool. The precise control of the test body's motion state by the hydraulic control system is affected by various external factors. Among them, the manufacturing equipment dimensions, test body weight and shape tolerances, and installation error of the equipment have a particularly serious influence on the control. Through the sensitivity analysis of external interference factors, this paper provides useful reference for device manufacturing, installation, operation, safety strategy, human factors control, etc.