Camera-based digital real-time static and dynamic testing of deployable/inflatable structures

P. Frank Pai; Jiazhu Hu

doi:10.1117/12.599205

16 May 2005 Camera-based digital real-time static and dynamic testing of deployable/inflatable structures

P. Frank Pai, Jiazhu Hu

Proceedings Volume 5758, Smart Structures and Materials 2005: Smart Sensor Technology and Measurement Systems; (2005) https://doi.org/10.1117/12.599205
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2005, San Diego, California, United States

Abstract

NASA's recent space programs require the use of many ultra-lightweight deployable/inflatable structures, but there are many modeling, analysis and testing problems. A total-Lagrangian finite element code GESA (Geometrically Exact Structural Analysis) is being developed by the authors by implementing geometrically exact structural theories for the modeling, analysis, and fast prototyping of Highly Flexible Structures (HFSs). However, it is very challenging to experimentally verify the large static and dynamic deformations of such lightweight HFSs by using conventional sensors. This paper presents the use of an EAGLE-500 real-time motion analysis system to measure large static and dynamic deformations of HFSs in order to verify the accuracy of numerical solutions obtained from GESA. Experimental results obtained from several highly flexible structures are used to show the capabilities of this system in characterizing nonlinear statics and dynamics of HFSs.

Citation Download Citation

P. Frank Pai and Jiazhu Hu "Camera-based digital real-time static and dynamic testing of deployable/inflatable structures", Proc. SPIE 5758, Smart Structures and Materials 2005: Smart Sensor Technology and Measurement Systems, (16 May 2005); https://doi.org/10.1117/12.599205

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available