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Bauhaus Luftfahrt Jahrbuch 2019

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25

Lebenszykluskosten beeinflussen das Potenzial

kontinuierlicher Strukturüberwachung

Eine kontinuierliche Zustandsüberwachung erhöht die Kenntnis über nutzungsabhängige Strukturschäden und beeinflusst die Restlebensdauer.

Dieses Potenzial kann auch dazu genutzt werden, Strukturen a priori leichter auszulegen.

Life-cycle costs affect the potential of continuous structural health monitoring

Continuous condition monitoring increases the knowledge of usage-dependent structural damages and influences the remaining service life.

This potential can also be used to design structures a priori in a lighter way.

Life extension

Weight saving

Annual cost

Planned structural retirement

Economic retirement

Annual cost

Economic retirement

Planned structural retirement

1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49

Year

1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49

Year

Cost of ownership (COO) Direct operating cost (DOC) Total annual cost (DOC + COO) of replacement at commissioning

Aktive Strukturüberwachung

ermöglicht genauere Last- und

Schädigungsverfolgung

SHM kann abhängig vom optimalen ökonomischen

Zeitpunkt der Außerdienststellung und der erfahrenen

Betriebslasten sowohl die Strukturlebensdauer

verlängern als auch Gewichtseinsparungen während

der Auslegung ermöglichen.

Active structural health

monitoring enables more precise

load and damage tracking

Depending on the optimum economic timing of

decommissioning and experienced operating loads,

SHM can both extend structural life and provide

weight savings during design.

Total potential weight savings [%]

30

20

10

0

Expected end of life

at design load

0

0.0 0.5 1.0 1.5

Deviation from design life time

Translation of smaller

anticipated loads into

weight saving

1

Optimal economic

retirement

Translation of smaller

loads into longer usage

and weight saving

3

Average loads

experienced in fleet

Translation of smaller

loads into longer usage

2

1.00 0.95 0.85 0.80 0.75 0.70

Fraction of design load

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