ISHM-based System Design

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29 Οκτ 2013 (πριν από 3 χρόνια και 11 μήνες)

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ISHM
-
based System Design

Fu
-
Kuo Chang

Dept. of Aeronautics and Astronautics

Stanford University

Stanford, CA 94305

Material: Derriso et al, AFRL, the proceedings of 4th IWSHM, 2003

Basic Concerns on UAV


Performance


Reliability


Cost

Cost Benefits from SHM System



Maintenance Cost

Interval

I
SHM

I
CI

SHM

Conventional Inspection


operational



Maintenance Benefit

Interval

I

SHM


operational


CI


SHM

CI

Design Benefit


Performance Efficiency

Figures from H. Schmidt, Airbus

SHM during Structural Design

Example

Ref:

“Application of Structural Health Monitoring to improve efficiency of aircraft”,
H.
-
J. Schmidt, J. Telgkamp and B. ScHmidt
-
Brandecker, 2nd European Workshop on
Structural Health Monitoring, Munich, Germany, July, 2004.

Analysis/Design


Materials


Structures


Tests


Prototyping


Evaluation

Manufacturing


Fabrication method


Quality control


End Users


Reliability/safety


Performance


Maintenance


Life
-
cycle cost

Service Manuals


Design criteria


Service Manuals

Traditional Design
-
to
-
Service Practices


Long design cycle


Extensive testing


Limited data flow and management


Lack of in
-
service information


Intensive Maintenance


Reliability and Safety compromised


Performance penalized by damage

Informatics/Software


Signal Processing


Intelligent Algorithms


Communication

Analysis and test data

Intelligent Software

Analysis/Design


Materials


Structures


Sensor System


Tests


Prototyping

Manufacturing


Fabrication techniques


Quality Control

End Users


Reliability/Safety


Performance


Maintenance


Life Cycle Costs

Integrated Structures

Integrated Design

New Sensor
-
Based Design
-
to
-
Service Practices


Minimize design cycle


Shorten testing


Enhance data flow and management


Improve operation information


Reduce Maintenance


Improve Reliability and Safety


Optimize Performance


Maintain maneuverability

Prognostic
-
Embedded Design

Analysis and Design

Smart sensing/

Networking

Diagnosis

Prognostics/

Decision Making

Structure

Prognostic
-
Embedded Design

Design

Manufacturing

In
-
service

Maintenance

SHM

Sensing

Detection

Diagnostics

Prognostics

Design optimization

Safer

Reliable

Agile

Maintainable