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Research on vibration characteristics of a multi-barrel artillery
- Source :
- Journal of Vibroengineering, Vol 21, Iss 5, Pp 1241-1250 (2019)
- Publication Year :
- 2019
- Publisher :
- JVE International, 2019.
-
Abstract
- The vibration of the barrel, induced by the interaction with a high-speed moving projectile, has a considerable influence on the shooting accuracy of a weapon. The finite element model of a multi-barrel was established with the goal to investigate its vibration characteristics in this paper, and the natural frequency and mode shape were analyzed by finite element method. To verify the result of finite element modal analysis (FEMA), a modal testing system basis on SC310W multi-path data-collecting system and hammer hitting method was set up. Results show that the low order vibrations of the multi-barrel artillery were mainly vertical, horizontal and torsional vibration, but the local vibration at high orders. The error of natural frequencies between the results obtained by simulation and test was 8.82 % in the first mode frequency and 1.37 % in the eighth. The FEMA can effectively simulate the actual vibration of the multi-barrel artillery.
- Subjects :
- Computer science
Modal analysis
lcsh:Mechanical engineering and machinery
Modal testing
02 engineering and technology
01 natural sciences
0203 mechanical engineering
0103 physical sciences
General Materials Science
lcsh:TJ1-1570
natural frequency
010301 acoustics
multi-barrel artillery
Torsional vibration
Projectile
business.industry
Mechanical Engineering
Natural frequency
Structural engineering
Finite element method
modal analysis
Vibration
020303 mechanical engineering & transports
finite element
mode shape
Artillery
business
Subjects
Details
- Language :
- English
- ISSN :
- 25388460 and 13928716
- Volume :
- 21
- Issue :
- 5
- Database :
- OpenAIRE
- Journal :
- Journal of Vibroengineering
- Accession number :
- edsair.doi.dedup.....8115ddad89ddf63577e0559eb5da4f8a