Research on Variable Micro Overload Control Method Based on Cold Flow Thrust
According to the variable micro overload control method in ground micro-gravity environment,the flow field simulation based on cold flow thrust is carried out with different cold flow pressure and secondary inflow position,and the influence of secondary jet on the main flow field is analyzed.A cold flow thrust system is developed,and the correlations between cold flow thrust and total pressure is verified by testing.The experiment of variable micro overload in micro-gravity environment for 1s time is carried out by micro-gravity drop.The result show that the thrust acting on the inner chamber can be controlled by cold flow profile,main flow and secondary flow pressure.So the micro-gravity level in the micro-gravity environment of the inner chamber can be changed to meet the micro-overload control ability in the micro-gravity environment.
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