Campus Units

Civil, Construction and Environmental Engineering, Electrical and Computer Engineering, Center for Nondestructive Evaluation (CNDE)

Document Type

Conference Proceeding

Conference

SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring

Publication Version

Published Version

Publication Date

4-12-2017

Journal or Book Title

Proceedings of SPIE

Volume

10168

Issue

101680S

First Page

101680S-1

Last Page

101680S-8

Research Focus Area

Structural Engineering

DOI

10.1117/12.2261597

Conference Title

Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems

Conference Date

March 25-29, 2017

City

Portland, OR

Abstract

High-rate systems operating in the 10 μs to 10 ms timescale are likely to experience damaging effects due to rapid environmental changes (e.g., turbulence, ballistic impact). Some of these systems could benefit from real-time state estimation to enable their full potential. Examples of such systems include blast mitigation strategies, automotive airbag technologies, and hypersonic vehicles. Particular challenges in high-rate state estimation include: 1) complex time varying nonlinearities of system (e.g. noise, uncertainty, and disturbance); 2) rapid environmental changes; 3) requirement of high convergence rate. Here, we propose using a Variable Input Observer (VIO) concept to vary the input space as the event unfolds. When systems experience high-rate dynamics, rapid changes in the system occur. To investigate the VIO’s potential, a VIO-based neuro-observer is constructed and studied using experimental data collected from a laboratory impact test. Results demonstrate that the input space is unique to different impact conditions, and that adjusting the input space throughout the dynamic event produces better estimations than using a traditional fixed input space strategy.

Comments

This proceeding is published as Jonathan Hong, Liang Cao, Simon Laflamme, Jacob Dodson, "Variable input observer for state estimation of high-rate dynamics", Proc. SPIE 10168, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2017, 101680S (12 April 2017); doi: 10.1117/12.2261597. Posted with permission.

Copyright Owner

Society of Photo-Optical Instrumentation Engineers (SPIE)

Language

en

File Format

application/pdf

Share

Article Location

 
COinS