Hoisting technique simulation based on physical engine for launch site

Hoisting technique plays an important role of spaceflight test and launch. Simulation of hoisting technique can promote effectivity and safety. Based on finite automata, seven key steps of hoisting technique are analyzed. Double-hook erecting process is designed as a key step, and analyzed the force of the load. The state transition diagram is designed to describe the double-hook erecting. Using ODE as a physics engine, the double-hook erecting is simulated by rigid body kinematic. With physics engine, the force of the object is calculated by rigid body kinematics, and the centroid's displacement is more accurate compared with particle kinematics. Also, simulation using the physics engine provides a certain reference value for the security of staff, the operable range and so on. The hoisting technique simulation system based on physics engine has been applied in launch site.