Research On The Monitoring Range Of The Embedded Interface Stress Sensors For Solid Rocket Motor

For the construction of Shipbord solid rocket motor life cycle health management system based on embedded sensors the stress calculation of SRM interface under different loading conditions, the monitoring range of embedded interface stress sensors used for health management system was determined. As a result, it is found that the variation range of the solid motor's interface shear stress under the given shipboard condition is 0KPa-6KPa, The variation range of the solid motor's interface normal stress under the given alternating temperature loads is 0.05MPa-0.13MPa. Considering design redundancy, the stress monitoring process of the interface shear stress sensor and the normal stress sensor shall be not less than 10KPa and 1MPa. The research results can provide technical support for the development of life cycle management system of solid rocket motor, and have a great significance to improve the reliability of missile weapon system and life prediction.