Www.kitves.com C. Hartmann, P. Winzer Page 1 Dipl.-Logist. Christine Hartmann Prof. Dr.-Ing. habil....

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www.fgproqu.uni-wuppertal.de

Dipl.-Logist. Christine HartmannProf. Dr.-Ing. habil. Petra Winzer

University of WuppertalDepartment D – Faculty of Safety EngineeringResearch Group Product Safety and Quality Engineering

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DeCoDe+X in KitVes

Demand Compliant Design in the Development of a Solution for

Harvesting High-Altitude Winds for Energy Generation on Vessels

14th QMOD, August 2011, San Sebastian 00

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Structure of the Presentation

INDEX

01 Introduction to KitVes

02 Product Development Support with DeCoDe in KitVes

03 Method Combination in KitVes with DeCoDe+X

04 In Detail: DeCoDe+FMECA

05 Conclusion

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Introduction to KitVes 01

KitVes - „Airfoil-based solution for Vessel on-board energy production destined to traction and auxiliary services“

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EU-PROJEKT KITVES

Source: KitVes project

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EU-PROJECT KITVES

● Airfoil-based solution for Vessel on-board energy production destined to traction and auxiliary services

● Working height: 200m – 1000m

● Kite is equipped with sensors and independent power supply

● Actuators and steering in the unit on deck (Kite Steering Unit)

● Autonomously performed cyclic two-phase manoeuvre:traction and recovery phase

● Surface of the Kite: 25 m²

● Rotation angle around Z-axis: 480°

● Nominal power: 100 kW

● Financed within the 7th Framework of the EU



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HARVESTING CYCLES: TRACTION PHASE


Wind

Kite

Drums

Pulleys

Lines

● Kite is lifted by the wind Elliptic ascent of the kite maximizes the amount of

generated energy

● Lines unroll

● Drums are put in rotation

● Generators produce energy.

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HARVESTING CYCLES: RECOVERY PHASE


Kite

Drums

Pulleys

Lines

● Started by the control when the maximal length of the lines is reached

● Lines are pulled in by the motors with a short delay between the first and the second line Wing area exposed to the wind is minimized Kite can be pulled in with a minimal effort, using

only a small fraction of the energy generated in the traction phase

At minimal length: new traction phase starts

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OUR INVOLVEMENT IN KITVES

● Role of the Research Group ProQ in project

● Methodical support of the product development

● Risk assessment

● System analysis

● Introduction and usage of different methods of quality engineering and the integration of methods in the process of the prototype development, e.g.

● FMECA (Failure Modes, Effects and Criticality Analysis)

● RBD (Reliability Block Diagram)

● FTA (Fault Tree Analysis

● Deduction of possible improvements for the product safety.



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MAIN PROBLEMS

● Complexity of the KitVes system makes an exhaustive system analysis rather difficult

● Different methods have to be applied in a short period

● Linguistic and professional diversity within the project:Conceptual understanding of the system and its elements widely differs

.



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INDEX





05 Conclusion

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Introduction to the DeCoDe Model

● DeCoDe (Demand Compliant Design): Methodology for system modelling and system analysis

● Description of the system by different views: Demands, Functions, Processes and Components

● Modelling of interrelations and dependencies in and between views

DemandsDemands

FunctionsFunctions

ProcessesProcesses

ComponentsComponents

Product Development Support with DeCoDe in KitVes 02

C.f.: Winzer; Schlund: DeCoDe-Modell zur anforderungsgerechten Produktentwicklung

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DECODE IN KITVES

● Determination of the elements in different workshops for ● Components● Functions● Processes

02Product Development Support with DeCoDe in KitVes

Definition of System ElementsFunctions

System

Components

Processes

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METHOD FLOW FOR DECODE IN KITVES

● Determination of the elements in different workshops for ● Components● Functions● Processes

● Analysis of Interrelations between the elements of the different views

02

Interrelations of System Elements

Functions Processes

Components

Definition of System ElementsFunctions

System

Components

Processes

Product Development Support with DeCoDe in KitVes

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DETAILED METHOD FLOW


Definition of System Elements Interrelations of System Elements

Interrelationsin & between elements

Reduce elements to lowest level

Collect & define elements with Mind Maps

Components Catalogue

Functions Catalogue

Processes Catalogue

Components List

Functions List

Processes List

WorkshopsWorkshops

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TOP LEVEL ELEMENTS OF THE ELEMENT CATALOGUES

Processes Catalogue

R + D

Construction

Tests

Bringing into Service

Usage

Watchdog

Recycling

Components Catalogue

Energy Consumer

Energy Storage

Kite

Line Unit

KSU

Main Control

Interfaces

Protective Cage

Functions Catalogue

Generate electric energy

„use“ electrical power

Instrumentation & control of the system

Fix system to hosting surface

Safety / security

Bring down the kite near the ksu


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MATRIX APPROACH TO THE INTERRELATIONS

02Product Development Support with DeCoDe in KitVesF

UN

CT

ION

SF

UN

CT

ION

SP

RO

CE

SS

ES

PR

OC

ES

SE

SC

OM

PO

NE

NT

SC

OM

PO

NE

NT

S

FUNCTIONSFUNCTIONS COMPONENTSCOMPONENTSPROCESSESPROCESSES

SF SF,P SF,C

SP SP,C

SC

● SC-Matrix:Which component is physically depending on which component?

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UN

CT

ION

SF

UN

CT

ION

SP

RO

CE

SS

ES

PR

OC

ES

SE

SC

OM

PO

NE

NT

SC

OM

PO

NE

NT

S


SF SF,P SF,C

SP SP,C

SC


● SF,C-Matrix:Which component realizes which function?

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UN

CT

ION

SF

UN

CT

ION

SP

RO

CE

SS

ES

PR

OC

ES

SE

SC

OM

PO

NE

NT

SC

OM

PO

NE

NT

S


SF SF,P SF,C

SP SP,C

SC



● SP,C-Matrix:Which process uses which component?

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UN

CT

ION

SF

UN

CT

ION

SP

RO

CE

SS

ES

PR

OC

ES

SE

SC

OM

PO

NE

NT

SC

OM

PO

NE

NT

S


SF SF,P SF,C

SP SP,C

SC



● SP,C-Matrix:Which process uses which component?

● SF,P-Matrix:Which process realizes which function?

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COMPONENTS GRAPH


Line 1 & 2

Kite

KSU

Software: © LOOMEO

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SYSTEM GRAPH


Software: © LOOMEO

● Components, ● Functions ● and Processes

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INDEX





05 Conclusion

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METHODICAL APPROACH – DECODE+X

● Application of the DeCoDe+X – approach for risk assessment and risk minimization

MTTF RBD FTA FMECA

DeCoDeFunctionsFunctions

ProcessesProcesses

ComponentsComponentsFollwing (Riekhof et al., 2011)

● MTTF: Mean Time To Failure

● RBD: Reliability Block Diagram

● FTA: Fault Tree Analysis

● FMECA: Failure Mode, Effects and Criticality

Analysis

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● Using views

MTTF RBD FTA FMECA


ProcessesProcesses


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MTTF RBD FTA FMECA


ProcessesProcesses



● Using views and matrices, DeCoDe provides input for method implementation

Follwing (Riekhof et al., 2011)

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MTTF RBD FTA FMECA


ProcessesProcesses




● Method application


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MTTF RBD FTA FMECA


ProcessesProcesses





● Integrating method results in the matrices


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● Integrating method results in the matrices

● Completion and adjustment of the system model and definition of measures

MTTF RBD FTA FMECA


ProcessesProcesses


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INDEX





05 Conclusion

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KitVes Project

Involved partners

Date:

Local EffectNext Level

EffectEnd Effect O S D

C = S * O

RPN N MO' = M/N * O

C'RPN' = C' *

D

1.

Improved State

Single Component

FMECA Sheet (Sub-) System

State at the Beginning of Analysis

Failure Element

Potential Failure Mode

Potential Failure EffectsControl Method

Potential Causes

D'

Redundant SystemActions

recommendedResponsibility &

target dateActions taken O'' S'

METHOD INTEGRATION IN DETAIL: FMECA

● Input from DeCoDe:● Failure Element (1): Description through components

11Source: c.f. Military Standard TM 5-698-4

DeCoDe im Projekt KitVes 04

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KitVes Project

Involved partners

Date:



C = S * O

RPN N MO' = M/N * O

C'RPN' = C' *

D

1.

Improved State

Single Component



Failure Element



Potential Causes

D'





● Input from DeCoDe:● Failure Element (1): Description through components● Potential Effects (2) and Causes (3): Identification through interrelations

between the system elements in DeCoDe



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KitVes Project

Involved partners

Date:



C = S * O

RPN N MO' = M/N * O

C'RPN' = C' *

D

1.

Improved State

Single Component



Failure Element



Potential Causes

D'







● Output for DeCoDe:● Risk Priority Number (RPN) (4): Risk related attribuation of components in

DeCoDe


44


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KitVes Project

Involved partners

Date:



C = S * O

RPN N MO' = M/N * O

C'RPN' = C' *

D

1.

Improved State

Single Component



Failure Element



Potential Causes

D'







● Output for DeCoDe:● Risk Priority Number (RPN) (4): Risk related attribuation of components in

DeCoDe● Actions taken (5): Adaption of the system model


5544


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INDEX





05 Conclusion

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CONCLUSIONS


● DeCoDe+X● supports a consistent description of complex systems● fosters a standardized input and output for quality methods● links quality methods for the demand compliant product development● relieves the developer ● generates valid data and documents the system modeling in a

comprehensible way● Success of the method strongly depends on the quality of the maintained

data.● Applied methods are significantly improved in their efficiency and

effectiveness.

THANK YOU FOR YOUR

ATTENTION!

Contact

Dipl.-Logist. Christine Hartmann

University of Wuppertal

Product Safety and Quality Engineering

E-Mail: [email protected]

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