Moment checking method of stepping motor mechanism for satellite

Abstract

The invention discloses a moment checking method of a stepping motor mechanism for a satellite. The moment checking method of the stepping motor mechanism for the satellite comprises the following steps that the holding moment, the positioning moment and the resistance moment of the mechanism are combed and calculated according to the design characteristics of the stepping motor mechanism and theload of the stepping motor mechanism; inertia moment of the stepping motor mechanism in emergency stop mode and gravity moment in ground test state are calculated; according to on-orbit state and ground test state, and whether the moment of the stepping motor mechanism can overcome resistance moment, inertia moment and gravity moment in on-orbit state and ground test state and in "power off duringemergency stop" and "continuous electricity during emergency stop" modes separately, check and analysis are carried out, and corresponding solutions are put forward according to different states or modes to complete the moment check and design correction of the stepping motor mechanism. According to the moment checking method of the stepping motor mechanism for the satellite, it is ensured that the design of the stepping motor mechanism is not changed due to the ground test state as far as possible, and the reliability, economy, rationality and engineering feasibility of the stepping motor mechanism design are further guaranteed.

Description

technical field [0001] The invention relates to the field of actuators based on stepping motors used in satellites, in particular to a torque checking method for satellite stepping motors in an emergency stop mode. Background technique [0002] The actuators based on stepping motors used in satellites, on the basis of ensuring reliable realization of on-orbit drive tasks and functions, pursue small size, light weight, low power consumption, system reliability and reasonable design margins. Therefore, in addition to ensuring that the design state of the mechanism can reliably realize the orbital driving task and function, due to the needs of the on-orbit emergency stop mode and the ground test, it is necessary to check the inertia moments and The effect of gravity. While trying to ensure that the torque design margin of the stepping motor mechanism is not too large and the design cost is too high, and in order to avoid the risk of ground test failure or even mechanism damage...

AI Technical Summary

Problems solved by technology

While trying to ensure that the torque design margin of the stepping motor mechanism is not too large and the design cost is too high, and in order to avoid the risk of ground test failure or even mechanism damage caused by torque imbalance in the ground test state, it is necessary to propose Strategies to solve the problem of torque imbalance, to ensure the reliability, economy, rationality and engineering feasibility of the design of the stepper motor mechanism

[0003] At present, there is no systematic and complete verification method and solution for the above problems

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