On-Line Impact Load Identification
The so-called Adaptive Impact Absorption (AIA) is a research area of safety engineering devoted to problems of shock absorption in various unpredictable scenarios of collisions. It makes use of smart technologies (systems equipped with sensors, controllable dissipaters and specialised tools for sign...
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Published in | Shock and vibration Vol. 20; no. 1; pp. 123 - 141 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
2013
|
Online Access | Get full text |
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Summary: | The so-called Adaptive
Impact Absorption
(AIA) is a research area of
safety engineering
devoted to problems of shock absorption in various unpredictable scenarios of collisions. It makes use of
smart technologies
(systems equipped with sensors, controllable dissipaters and specialised tools for signal processing). Examples of engineering applications for AIA systems are protective road barriers, automotive bumpers or adaptive landing gears. One of the most challenging problems for AIA systems is on-line identification of impact loads, which is crucial for introducing the optimum real-time strategy of adaptive impact absorption. This paper presents the concept of an
impactometer
and develops the methodology able to perform real-time impact load identification. Considered dynamic excitation is generated by a mass
M
1
impacting with initial velocity
V
0
. An analytical formulation of the problem, supported with numerical simulations and experimental verifications is presented. Two identification algorithms based on measured response of the impacted structure are proposed and discussed. Finally, a concept of the AIA device utilizing the idea of
impactometer
is briefly presented. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1070-9622 1875-9203 |
DOI: | 10.1155/2013/147908 |