The Comparison Discussion on the Controlling Effect of Parasitic Accelerations Generated by Human Centrifuge by Different Controlling Methods

Abstract When simulating acceleration of pure Gz direction, when precision requirement of centrifuge Gz direction is provided, the max values of parasitic accelerations permitted to occur in other directions such as Gx, Gy directions are also provided in the meantime. The research is on account of motion pattern of three axial human centrifuge, introduces Euler recursion method and trapezoid method, designs computer simulations of different smoothing number of times and smoothing time on account of Euler recursion method and trapezoid method and compares simulation results, that is the controlling effects of parasitic accelerations generated by human centrifuge when making the simulation of pure Gz by the two controlling methods. Result shows: the two methods both can restrain the values of parasitic accelerations of x and y directions with effect, and torque demanded by system decreases after smoothing acceleration curves. Compared to Euler method, the computing amount of trapezoid method is larger, while the eliminating effect for parasitic accelerations is better, and it makes computing accuracy of result be higher. The study result can be as the important reference resource when selecting and researching controlling methods of the parasitic accelerations generated by human centrifuge.