Failure Simulation and Reliability Modelling Analysis of Aircraft Drag Parachute Lock System

The drag parachute lock system is one of the most important parts of an aircraft’s take-off and landing system. By minimizing the landing glide distance and extending the life of the wheels, this system’s reliability has a direct impact on the safety of the aircraft’s landing. In order to construct a three-dimensional model of the drag bail lock system and a multi-body dynamics solution model using CATIA and LMS Virtual, this research undertakes an extensive investigation of its essential components and operating principle. Based on the multi-body dynamics model, lab software and a parameterized reliability simulation model are developed. The failure mode of unintentional parachute release is sampled using the Monte Carlo method, the model response amount is calculated using simulation, and the reliability study of the parachute lock system is then carried out using the findings of the simulation.