Analysis of Dynamic Behavior of Zigzag Groove Setback Arming Device with Two Degree of Freedom

Abstract:

Focusing on the requirements of safety and reliability of fuze setback arming device of rocket-assisted projectile, a zigzag groove setback device with two degree of freedom was designed with Inventor 6. The dynamic simulation is developed under environment of VisualNastran. The optimum parameters of up inertia-cylinder mass, down inertia-cylinder mass, up inertia-spring rigidity and down inertia-spring rigidity were tested by orthogonal method and simulated. The results indicate that this setback device can effectively differentiate setback overload in launch and impact overload at service handling; credible arming time of fuze is about 128ms when the even overload of the rocket engine is 100g; the optimum mass of up inertia-cylinder and down inertia-cylinder are respectively 3.19g and 1.41g, the optimum rigidity of up inertia-spring and down inertia-spring are respectively 32.7 N/m and 21.8 N/m.

• Periodical: Advanced Materials Research (Volumes 317-319)
• Pages: 1739-1744
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.317-319.1739
• Online since: August 2011
• Authors: Guang Lin He, He Fei Tian
• Keywords: Dynamic Simulation, Mathematical Models, Orthogonal Test, Two Degree of Freedom System, Zigzag Groove

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