ENGG 1100 Introduction to Engineering design Lecture 2: Engineering Design Management Helen Meng Professor and chairman Department of Systems Engineering Engineering Management hmmeng@se cuhk. edu. hk
ENGG 1100 Introduction to Engineering Design Lecture 2: Engineering Design & Management Helen Meng Professor and Chairman Department of Systems Engineering & Engineering Management hmmeng@se.cuhk.edu.hk 1
Engineer and Engineering Design The word engineer has Latin roots in ingeniare (i. e. to contr devise")and ingenium(i.e. cleverness") An engineer is a professional practitioner of engineering who has mathematical and scientific training and can apply such knowledge together with ingenuity to design and build complicated products, machines, structures or systems and thus develops solutions for technical problems An engineering design pulls together(i. e synthesizes) something new or arranges existing things in a new way to satisfy a recognized need of society. Engineering designs considers the limitations imposed by practicality, regulation safety, and cost
Engineer and Engineering Design • The word engineer has Latin roots in ingeniare (i.e. “to contrive, devise”) and ingenium (i.e. “cleverness”). • An engineer is a professional practitioner of engineering, who has mathematical and scientific training and can apply such knowledge, together with ingenuity, to design and build complicated products, machines, structures or systems and thus develops solutions for technical problems. • An engineering design pulls together (i.e. synthesizes) something new or arranges existing things in a new way to satisfy a recognized need of society. Engineering designs considers the limitations imposed by practicality, regulation, safety, and cost. 2
Design Discovery versus design Discovery is getting the first knowledge of something Design is the creation of new things SCience versus Engineering Science is knowledge based on observed facts and tested truths arranged in an orderly system that can be validated and communicated to other people Engineering_ is the creative application of scientific principles used to plan, build, direct, guide, manage, or work on systems to maintain and improve our daily lives Scientists versus engineers Scientists see things as they are and ask, WHY? Engineers see things as they could be and ask, WHY NOT?
Design • Discovery versus Design • Discovery is getting the first knowledge of something • Design is the creation of new things • Science versus Engineering • Science is knowledge based on observed facts and tested truths arranged in an orderly system that can be validated and communicated to other people. • Engineering is the creative application of scientific principles used to plan, build, direct, guide, manage, or work on systems to maintain and improve our daily lives • Scientists versus Engineers • Scientists see things as they are and ask, WHY? • Engineers see things as they could be and ask, WHY NOT? 3
Challenges of engineering design Creativity creation of something that has not existed before Complexity requires decisions on many variables and parameters Choice: requires making choices between many solutions at all levels from basic concepts to the smallest detail Compromise: requires balancing multiple and sometimes conflicting requirements
Challenges of Engineering Design • Creativity: creation of something that has not existed before • Complexity: requires decisions on many variables and parameters • Choice: requires making choices between many solutions at all levels, from basic concepts to the smallest detail • Compromise: requires balancing multiple and sometimes conflicting requirements 4
Importance of Engineering Design 100 808 Cost committed 惠8 oo8 eds 40 Cost incurred Tme〔 nonlinear) [Source: Dieter& Schmidt 2013
Importance of Engineering Design [Source: Dieter & Schmidt 2013] 5