NASA-LLIS-0922

Lessons Learned – Bubble Formation in Dampers May Cause Transient Un-Damped Motion (1998)

contributor author	NASA - National Aeronautics and Space Administration (NASA)
date accessioned	2017-09-04T16:06:25Z
date available	2017-09-04T16:06:25Z
date copyright	36832
date issued	2000
identifier other	RYTEQCAAAAAAAAAA.pdf
identifier uri	https://yse.yabesh.ir/std/handle/yse/69708
description abstract	Abstract: Due to the formation of a "hydraulic deadband," MPL solar panels "flopped" when deployed following thermal vacuum test. Sustained exposure to full or partial vacuum may create bubbles in viscous damping fluids. To varying degrees, all viscous dampers are believed to be subject to bubble formation. Early in-flight deployment may reduce the risk of deadband formation in viscous fluid dampers and of subsequent structural and electrical damage. During hardware design and deployment sequence planning, consider the impact of bubble formation upon damper deadband characteristics and the effect on deployment loads and dynamics.
language	English
title	NASA-LLIS-0922	num
title	Lessons Learned – Bubble Formation in Dampers May Cause Transient Un-Damped Motion (1998)	en
type	standard
page	3
status	Active
tree	NASA - National Aeronautics and Space Administration (NASA):;2000
contenttype	fulltext