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Dynamic Analysis and Simulation of Arresting Cable

Author: ZhangXinYu
Tutor: LiangLiHua
School: Harbin Engineering University
Course: Control Theory and Control Engineering
Keywords: Blocking devices Blocking cable Stress wave Co-simulation
CLC: U674.771
Type: Master's thesis
Year: 2011
Downloads: 79
Quote: 1
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Abstract


The carrier-based aircraft arresting gear is important auxiliary equipment on the aircraft carrier, the safety of the carrier-based aircraft in the limited length of the aircraft carrier deck landing. Blocking cable is an important part of the blocking devices, to landing huge kinetic energy is passed to the deck below blocking machine. Blocking cable work in the worst conditions, the most complex dynamic process, its dynamics directly affect the performance of the blocking system. The theoretical study of blocking devices is still in its primary stage, performing system analysis and simulation, usually focuses on the performance analysis and modeling of the hydraulic system, but the theoretical research and simulation analysis of blocking cable dynamics characteristics, little. Blocking cable lateral impact by carrier-based aircraft tail hook, the formation of the stress wave. The paper analyzes the blocking cable stress wave formation and propagation. First through theoretical analysis has been blocked cable stress wave equation. On the basis of the stress wave equation, blocking cable stress the most important characteristics of the wave (longitudinal wave velocity, shear wave velocity, bending wave velocity and the bending angle). The papers blocking cable stress wave propagation using explicit dynamics simulation software LS-DYNA to simulate the dynamic effect of blocking cable by the instant impact, and the simulation results of the stress wave characteristic parameters close to the theoretical analysis of the calculation results. In the process of blocking system running, blocking cable movement is very complex, and certain elastic deformation in the number of degrees of freedom. The paper application of multi-body dynamics theory and rope dynamics theory, blocking cable dynamics simulation model the rigid body discretization thought, in the mechanical dynamics analysis software ADAMS. Blocking cable connection simulation model using linear bushes stretching, bending, twisting and other multi-degree-of-freedom elastic deformation, the use of the the CMD language of parametric modeling. Blocked cable-degree-of-freedom elastic coefficient according to the basic theory of elasticity, the theoretical analysis. Blocking cable dynamic characteristics of simulation research needs combined hydraulic system blocking devices. Through the analysis of the blocking devices hydraulic system works to establish its mathematical model. On the basis of the mathematical model, further established through the complex system of multi-disciplinary simulation software AMESim simulation model of the hydraulic system of the blocking devices. Popular joint simulation technology is applied, of blocking cable ADAMS model and hydraulic system AMESim co-simulation model to analyze the different blocking case simulation curve, studied the effects of blocking the line pull and other important performance parameters.

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CLC: > Transportation > Waterway transport > Marine Engineering > Various types of vessels > Military ships ( warships ) > Special ships > Aircraft carrier
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