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http://dx.doi.org/10.14775/ksmpe.2014.13.2.073

Shock Analysis of Gimbal Structure System Including Rubber Vibration Isolator in a Observation Reconnaissance Aircraft  

Lee, Sang Eun (Department of Mechanical Design Engineering, Kumoh National Institute of Technology)
Lee, Tae Won (Department of Mechanical Design Engineering, Kumoh National Institute of Technology)
Kang, Yong Goo (Seeker & EO/IR R&D Lab., LIG NEX1 Co. Ltd.)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.13, no.2, 2014 , pp. 73-80 More about this Journal
Abstract
A camera module that gathers visual information via aerial observation reconnaissance is equipped inside a gimbal structure. This gimbal structure system must reduce dynamic responses in order to obtain clear images under all circumstances. Among many design specifications for this system, there is MIL-STD-810G as a shock standard. This specification indicates a limitation of the acceleration of the camera module under a base shock excitation on the gimbal structure. The satisfaction of this condition can usually be proved by experiment, because it includes bearings and dynamic isolators made of rubber. Numerical analysis must be proposed for design improvement of the gimbal structure. To achieve this goal, transient response analysis for the base shock excitation was performed using the finite element method. Experimental results were compared with numerical solutions and it is shown that the present method is useful.
Keywords
Observation Reconnaissance; Gimbal; Finite Element Method; Base Shock Excitation; Rubber; Vibration Isolator; Large Mass Method;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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