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Functional Analysis of Flexure in a Captive Thrust Stand  

Kim, Joung-Keun (국방과학연구소 기술연구본부 4부)
Yoon, Il-Sun (국방과학연구소 기술연구본부 4부)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.10, no.3, 2006 , pp. 73-81 More about this Journal
Abstract
In order to evaluate the thrust of a propulsion system, generally the captive thrust stand is used Based on the applied propulsion system, the various captive ways between thrust stand and the propulsion system are considered. In this paper, the effect of motor deformation generated during firing in horizontal thrust stand on the measured thrust is theoretically derived from classical beam theory. New flexure performance index is defined and estimated on the basis of the thrust measurement error. Its result is good agreement with numerical result of ABAQUS. This study showed that measurement reliability and safety of test can be highly upgraded, in case of two flexure-type captive thrust stand.
Keywords
Thrust Stand; Flexure; Load cell; Buckling load;
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