Concurrent Evaluation An Application for DLRs Concurrent Engineering

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Concurrent Evaluation – An Application for DLR’s Concurrent Engineering Facility SECESA 2010, 13. -15.

Concurrent Evaluation – An Application for DLR’s Concurrent Engineering Facility SECESA 2010, 13. -15. October, Lausanne, CH André Weiß, DLR Institute of Space Systems

Content 1. The Concurrent Engineering Process 2. Concurrent Evaluation – Three Examples • Mission

Content 1. The Concurrent Engineering Process 2. Concurrent Evaluation – Three Examples • Mission Architecture Definition Risk Assessment • Mission Extension Evaluation 3. Conclusion • Slide 2 André Weiß, DLR Institute of Space Systems

The Concurrent Engineering Process Most important features of Concurrent Engineering: Interdisciplinary Team Well-defined, Streamlined

The Concurrent Engineering Process Most important features of Concurrent Engineering: Interdisciplinary Team Well-defined, Streamlined Approach Accelerating the Design Process Responds to Customer Needs Consistent Level of Understanding Whole is More Than Sum of its Parts Adapt for Evaluation Purposes Slide 3 André Weiß, DLR Institute of Space Systems

Concurrent Evaluation – Example One Mission Architecture Definition Slide 4 André Weiß, DLR Institute

Concurrent Evaluation – Example One Mission Architecture Definition Slide 4 André Weiß, DLR Institute of Space Systems

Concurrent Evaluation – Mission Architecture Definition Precursor to Concurrent Engineering studies Requirements need to

Concurrent Evaluation – Mission Architecture Definition Precursor to Concurrent Engineering studies Requirements need to be defined Mission Architecture Definitions result in a 10 to 15 pages long report on the following topics: Science Objectives Science Implementation Mission Design Slide 5 André Weiß, DLR Institute of Space Systems

Concurrent Evaluation – Mission Architecture Definition The Process Step 1 Introduction of the general

Concurrent Evaluation – Mission Architecture Definition The Process Step 1 Introduction of the general concept through the customer Payload and Mission analysis Step 2 Identification of possible Mission Scenarios Step 3 (iterative for each scenario) Definition of domain-specific tasks Evaluation of requirements due to payload or environment Slide 6 André Weiß, DLR Institute of Space Systems

Concurrent Evaluation – Mission Architecture Definition SWON – The Prototype Study Objective Observation of

Concurrent Evaluation – Mission Architecture Definition SWON – The Prototype Study Objective Observation of the Solar Far Side wrt Space Weather Implementation Network of landers on multiple Inner-Earth asteroids Mission Design Due to lack of experience, a full network mission proved to be not feasible Alternate mission scenario: Technology demonstrator mission to a single asteroid Additional asteroid research-related payload Slide 7 André Weiß, DLR Institute of Space Systems

Concurrent Evaluation – Example Two Risk Assessment Slide 8 André Weiß, DLR Institute of

Concurrent Evaluation – Example Two Risk Assessment Slide 8 André Weiß, DLR Institute of Space Systems

Concurrent Evaluation – Risk Assessment Based on Risk Management Failure Modes and Effects Analysis

Concurrent Evaluation – Risk Assessment Based on Risk Management Failure Modes and Effects Analysis (FMEA) Fault Tree Analysis (FTA) Characteristic elements were identified Implemented in the Concurrent Evaluation process Slide 9 André Weiß, DLR Institute of Space Systems

Concurrent Evaluation – Risk Assessment The Risk Assessment Process Step 1 Subsystem and Mission

Concurrent Evaluation – Risk Assessment The Risk Assessment Process Step 1 Subsystem and Mission analysis Step 2 Development of a system map dependencies between components functional relationships Step 3 (iterated for each failure) Clear identification of failure as well as its effects Definition of possible solutions or workarounds Slide 10 André Weiß, DLR Institute of Space Systems

Concurrent Evaluation – Example Three Mission Extension Evaluation Slide 11 André Weiß, DLR Institute

Concurrent Evaluation – Example Three Mission Extension Evaluation Slide 11 André Weiß, DLR Institute of Space Systems

Concurrent Evaluation – Mission Extension Evaluation 53% of exploration spacecrafts exceeded initial mission goals

Concurrent Evaluation – Mission Extension Evaluation 53% of exploration spacecrafts exceeded initial mission goals Mission extensions have become quite common The intention: • Streamlining through concurrent approach • Responding to customer needs Optimal “science return / cost” ratio Slide 12 André Weiß, DLR Institute of Space Systems

Conclusion Extend the concurrent approach across other phases Done elsewhere: Phase B Concurrent Reviewing

Conclusion Extend the concurrent approach across other phases Done elsewhere: Phase B Concurrent Reviewing Analyzed here: Concurrent Evaluation Adaptation of established methodologies Definition of a new process Slide 13 André Weiß, DLR Institute of Space Systems

Thanks for your attention! & Any questions? Slide 14 André Weiß, DLR Institute of

Thanks for your attention! & Any questions? Slide 14 André Weiß, DLR Institute of Space Systems

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