Design and Experimental Study of Zero-Compensation Steering Gear Load Simulator with Double Torsion Springs
2019
Abstract As one of the main actuators of the missile guidance control system, the steering gear is used to change the missile flight direction. In order to improve the accuracy of the load simulator used to test missile steering gears, a mechanical servo load simulator design, based on torsion springs, is presented. In the design process, in order to avoid the zero hysteresis portion of the torsion spring characteristic curve, the innovative method of zero-compensation using the reverse arrangement of the double torsion spring is proposed. Finally, by using the process servo calibration test and the actual test of the steering gear, the zero error is effectively reduced while the load gradient is satisfied, and the accuracy of the load platform is improved. The results obtained strongly indicate the feasibility of the proposed method. The zero error of the double torsion spring structure is less than the required 1%.
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