NASA-LLIS-1839

Lessons Learned - Laser Beam Expander Optics (BEO) Structural Failure

contributor author	NASA - National Aeronautics and Space Administration (NASA)
date accessioned	2017-09-04T17:39:55Z
date available	2017-09-04T17:39:55Z
date copyright	07/30/2006
date issued	2006
identifier other	DTXCQCAAAAAAAAAA.pdf
identifier uri	http://yse.yabesh.ir/std/handle/yse/162910
description abstract	Abstract: During the unit level vibration testing of the BEO of the LIDAR instrument of CALIPSO Satellite, the composite structure spider legs supporting the BEO secondary mirrors failed catastrophically. After the initial analysis of the BEO, several small design changes to the structure were made, each of which was so minor, with so little impact on the overall design margin, that the structural analysis was not updated. However, the combined effects of these modifications consumed all design margin, leading to failure during qualification testing.
language	English
title	NASA-LLIS-1839	num
title	Lessons Learned - Laser Beam Expander Optics (BEO) Structural Failure	en
type	standard
page	3
status	Active
tree	NASA - National Aeronautics and Space Administration (NASA):;2006
contenttype	fulltext
subject keywords	Engineering Design (Phase C/D).
subject keywords	Integration and Testing
subject keywords	Systems Engineering and Analysis.