JIAOTONG UNIVERSITY 196 Systems Engineering Lecture 6 Tradespace Exploration and Concept Selection Instructor(s) Prof.Jianjun Gao Department of Automation School of Electronic Information and Electrical Engineering 2014 Spring
Systems Engineering Instructor(s) + - 2014 Spring Tradespace Exploration and Concept Selection Prof. Jianjun Gao Department of Automation School of Electronic Information and Electrical Engineering Lecture 6
Gao's V-Model Stakeholder Systems Engineering Lifecycle Analysis Overview Managment 入 Requirement Cost and Schedule Commissioning Analysis Management Operations System Verification and Architecture Validation Tradespace System Exploration Integration Human System Factor Design Definition and Safety Optimization CLGO System Engineering by J.J.Gao 2
+ - System Engineering by J. J. Gao 2 Gao’s V-Model Stakeholder Analysis Requirement Analysis System Architecture Tradespace Exploration Design Definition and Optimization System Integration Verification and Validation Commissioning Operations Lifecycle Managment Systems Engineering Overview Cost and Schedule Management Human Factor System Safety
Today's Agenda Concept Generation,Concept Selection Decision Making in Concept Selection Simple Methods:Pugh Matrix Multi-Attribute Utility Non-Dominance Relationship Tradespace Exploration Example: Space Tug CLGO System Engineering by J.J.Gao 3
+ - 3 Today’s Agenda Concept Generation, Concept Selection Decision Making in Concept Selection Simple Methods: Pugh Matrix Multi-Attribute Utility Non-Dominance Relationship Tradespace Exploration Example: Space Tug System Engineering by J. J. Gao
Conceptual Design Process Higher Level System Input Higher level input may include ↓ needs,constraints, I.Value Definition assumptions II.Concept Generation (Design space exploration) Concept generation involves divergent thought process III.Concept Selection (Narrow-down alternative set) Concept Selection involves IV.System Architecture Definition convergent thought process Detail design The early stages in the development process have great potential to improve the value delivered in the product and to reduce rework in the process.Generating and maturing design alternatives require resources and time,which are limited in a project.Therefore,there is need for efficient methods to manage alternatives that also allow maximization of design space exploration while considering the resources and time available. (David Diaz Dominguez,SDM 2011) CLGO System Engineering by J.J.Gao 4
+ - System Engineering by J. J. Gao 4 Conceptual Design Process Higher level input may include needs, constraints, assumptions Concept generation involves divergent thought process Concept Selection involves convergent thought process I. Value Definition II. Concept Generation (Design space exploration) III. Concept Selection (Narrow-down alternative set) IV. System Architecture Definition Higher Level System Input Detail design The early stages in the development process have great potential to improve the value delivered in the product and to reduce rework in the process. Generating and maturing design alternatives require resources and time, which are limited in a project. Therefore, there is need for efficient methods to manage alternatives that also allow maximization of design space exploration while considering the resources and time available. (David Diaz Dominguez, SDM 2011)
System Architecture>Design Conceptual CDR Modeling Optimization “Optimal" metric 1 Design Decision Making Need Qualitative◆ Quantitative→ PDR 长X SRR Design Modeling m Optimization Concept Concept Concept System Synthesis Screening Selection Design variable X1 System Architecture System Design CLGO System Engineering by J.J.Gao 5
+ - System Engineering by J. J. Gao 5 Decision Making in System Design