Redundancy prevention and control are the emphasis and difficulty in the development and producing of aerospace products,they also are the basis of the stable batch production of electric propulsion products.By analyzing the characteristics,design structure and application conditions of the electric propulsion products,the source of the redundancy and its possible damage to the product can be identified,the whole-process redundancy prevention,control links,control and detection means of the product can be determined and have been practiced on generic product of multiple specifications.The work can be used as the basis of the redundancy prevention and control in the follow-up electric propulsion product development,it can also be used as the reference of the redundancy control in other product developments.
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