Method for determining motion interference of plugging mechanism

Abstract

The invention relates to a method for determining motion interference of a plugging mechanism. The method comprises the following steps: (1) simplifying an actual model of the plugging mechanism into a physical model; (2) carrying out stress and motion analysis on the simplified physical model; (3) using the plugging mechanism as a motion system, wherein the whole system is in compound motion, absolute motion is fixed-axis rotation of a rotating arm of the plugging mechanism around a rotating shaft of the plugging mechanism, relative motion is movement of a plug in a long circular hole, and transport motion is fixed-axis rotation of the plug around a plug pin; and (4) obtaining a position map of any angle in the motion process of the plugging mechanism according to a motion analysis result, and judging whether interference exists in the motion process of the plugging mechanism according to the position map. According to the method, a kinematics simulation model does not need to be established, and an actual verification test does not need to be carried out; and the position corresponding to any angle in the rotating process can be theoretically obtained and displayed through drawing, then whether interference exists in the moving process of the plugging mechanism or not is judged, and the obtained result is real, accurate and visual.

Description

technical field [0001] The invention relates to a method for determining motion interference, which is suitable for motion analysis of a plugging mechanism after launch of an airborne guide rail missile. Aiming at a launching device using a plug-in mechanism, a motion interference analysis method for a missile during the retraction of the plug-in mechanism after the engine is ignited is disclosed. Background technique [0002] Missile ignition and launch is a single irreversible process that cannot be terminated during the ignition process. Therefore, the safety of the separation of the missile carrier is a key to the missile weapon system, and its core is to ensure the safety of the separation of the missile and the carrier aircraft. [0003] The safety of the shell separation process refers to various safety factors such as the normal and reliable ignition of the missile from the launch device during normal launch, reliable unlocking during launch, no interference from the...

AI Technical Summary

Problems solved by technology

At present, technically, dynamic analysis of the plug-in mechanism is mainly performed by dynamic simulation analysis, or a high-speed camera is used to capture the motion test process of the plug-in mechanism. The results of the former method are greatly affected by the modeling accuracy, and the latter method requires more cost. big energy organization test

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