The Bolt Movement In The Low-temperature Environment Issues Related To Research

This subject studies the problems of bolt about the moment in the environment withlow temperature. In the article analyzed the fracture mechanism of solid medium (ice)which adhered to orbit where the bolt move, established the model for collision betweenthe bolt and solid medium. Analyzed the process of collision between them. Quested forthe theory of the LS-DYNA, which is used to solve problems about large deformation andbig displacement in collision. Using ANSYS/LS-DYNA established the finite elementmodel and carried on numerical simulation with low temperature for the bolt and ice.Obtained the force, the displacement, the speed, the acceleration and the energy of thecolliding responded course in-30 degrees centigrade. Discussed the direction of the forceand the velocity in collision in environment with different temperature, recoil velocity andthe volume of ice. Otherwise, in the fourth chapter also carded on the compressionexperiment of ice in different low temperatures, obtained the interrelated datum, provided areferrence for further study.