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http://dx.doi.org/10.5050/KSNVN.2002.12.10.808

Nonlinear Dynamic Characteristics of Deployable Missile Control Fin  

Kim, Dae-Kwan (한국과학기술원 항공우주공학과 대학원)
Bae, Jae-Sung (한국과학기술원 항공우주공학과 대학원)
Lee, In (한국과학기술원 항공우주공학과)
Shin, Young-Sug (국방과학연구소)
Lee, Yeol-Wha (국방과학연구소)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.12, no.10, 2002 , pp. 808-815 More about this Journal
Abstract
The nonlinear characteristics for hinge of a deployable missile control fin are investigated experimentally. The nonlinearity is caused by a worn or loose hinge and manufacturing tolerance and cannot be eliminated completely. The structural nonlinearity has an effect on the static and dynamic characteristics of the control fin. Therefore, it is necessary to establish the accurate nonlinear model for the hinge of the control fin. In the present study the existence of nonlinearities in the hinge is confirmed from the frequency response experiments such as tip random excitation and base sine sweep. Using the system identification method. especially, ″Force-state Mapping Technique″, the types of nonlinearities are identified and the nonlinear hinge model of the control fin is established.
Keywords
Natural Frequency; Freeplay; Softening Stiffness; Hardening Stiffness; System Identification; Force-state Mapping Technique;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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