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- Title
Design and accuracy test of polar moment of inertia measuring equipment for projectile and rocket.
- Authors
Liwei Sun; Shukun Wang; Haokun Wang; Weihong Zhao; Junye Li; Chunmin Shang
- Abstract
The moment of inertia is an important mass characteristic parameter. It has a direct impact on the trajectory, flight stability, strike accuracy, and service life of the projectile. To meet the measurement of the polar moment of inertia of large projectiles and arrows, this paper uses the vibration compound pendulum method to measure the polar moment of inertia of large projectiles and arrows, deeply analyzes the measurement principle, and designs a polar moment of inertia test equipment. Through the measurement of standard samples, the measurement accuracy of the equipment is tested, and the causes of error are analyzed. The experimental results show that the maximum relative error is less than 0.5 %, and the relative uncertainty is 0.813 %, which meets the requirements of expected technical indicators.
- Subjects
MOMENTS of inertia; ROCKETS (Aeronautics); MEASURING instruments; TEST design; TESTING equipment; ELECTROMAGNETIC launchers
- Publication
Vibroengineering Procedia, 2022, Vol 44, p87
- ISSN
2345-0533
- Publication type
Article
- DOI
10.21595/vp.2022.22695