Vibration Characteristic Optimization of Overhead Weapon Station Based on Dynamic Stability Concept

Wei, Dan; Wu, Yong; Yuan, Lin; Hu, Tao

doi:10.4028/www.scientific.net/amm.635-637.257

Cited by 1 publication

(2 citation statements)

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“…So, in this study the Latin Hypercube Sampling method is considered as it generates evenly distributed samples, 18 which is better than Monte Carlo Sampling for estimating the population distribution function. 19 We used this method to generate an (n 3 15) matrix of random data for the 15 kinematic quantities grouped in the u vector in equation (14).…”

Section: Kinematic and Dynamic Modellingmentioning

confidence: 99%

“…Hua et al 13 studied the dynamic characteristics of a machine gun system to maximize the frequency of the main vibration mode, in order to guarantee a resonance-free frequency band above the exciting frequency. Moreover, to improve the accuracy of an Overhead Weapon Station's (OWS) automatic firing Wei et al 14 analysed the main vibration parameters affected the projectile dispersion, and established the vibration characteristic optimization model based on dynamic stability concept, and sensitivity analysis.…”

Section: Introductionmentioning

confidence: 99%

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Multi-objective design optimization of a Turret’s U-bracket mounted on moving platform

Anguek

Bounab

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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This paper aims to model and design a lightweight U-bracket for two degrees of freedom (DOF) mechanism used to carry a machine gun. The mechanism is called a weapon station or a gun turret and can be mounted on any mobile platform. Due to the movement of the platform and the gun recoil force, the gun turret is subjected to high disturbances. So, to get better performances in terms of distributed efforts, stability and precision, the mechanism has to be optimally designed. The trunnion axis offset corresponding to higher dynamic and structural performance was determined based on probabilistic analysis and finite element simulations. Then, the co-simulation between MATLAB and ANSYS Parametric Design Language (APDL) was performed to get the optimal shape of the U-bracket by minimizing its mass, and maximizing its first natural frequency subjected to maximum stress constraint. To solve this constrained optimization problem, the Multi-Objective Genetic Algorithm (MOGA) technique was used. Through numerical simulations, the proposed approach shows the ability to provide a generic methodology to design the U-bracket of a 2-DOF weapon station efficiently.

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Section: Kinematic and Dynamic Modellingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%