The graph indicates the maximum value of z will occur at the intersection of (c)
and (b) (None P1>0, P2>0)
Problem 6.2 in textbook at end of the book
Lagrangian multipliers optimization
Design variables: x1, x2, x3
Objective function: UU(x1, x2, x3) (to b
Class Notes
Operations Research
1.) Conduct and coordinate the operations and activities within an organization
research on operations
2.) Formulate the real problem as a mathematical model that describes the actual
situation
3.) Identify the first cours
Class notes
Society Conservation in Engineering Design
1. Modern engineering design has been impacted by:
a. Occupational safety and health (OSHA)
b. Consumer rights (CPSC: Ralph Nader)
c. Anti-nuclear movement
d. Freedom of information and public disclos
Class notes
Engineering as a Profession
What is a Profession? (All include Integrity)
Academic training
Intellectual Effort
Creative thinking
Desire for public service
* Licensing Process included
NSPE- National Society of Professional Engineering
Fu
Class Notes
Engineering Attribute: A characteristic deemed important to the project by the design engineer
A Mathematical Method for Making Selections in Engineering Design (Materials)
Example: Choose an appropriate motor bike for personal use Attributes
Class Notes
Morphology of Engineering Design: Details of the structure of engineering design
Phase 1: Feasibility Study (conceptual design)
a.) Initiate then design.
b.) Validate the need.
c.) Possible design solutions.
d.) Economical / financial worth wi
Class Notes
3.) Human Factors engineering
1.
2.
3.
4.
5.
Ergonomics
Biomechanics
Engineering physiology
Anthropologist: visual, auditory display
Aesthetics: shade, texture, color, balance
4.) Costs: if preliminary estimates cause high costs, the design ma
Engineering Ideation Techniques (Continued from list from last week)
Morphological Ideation Chart
Sketching
Example: using a morphological ideation chart, design a human powered
recreational watercraft.
HW: Create a morphological chart for a child powe
Mathematical Process for Decision Making in Engineering Design
Example: choose appropriate A/C unit for an engineering laboratory
Example: choose an appropriate motorbike for personal use.
Attribute rating: Aij: numerical value associated with the j't
Optimization in Engineering Design
Operations Research
Conduct and coordinate the operations and activities within an
organization-> research on operations
Formulate the real problem as a mathematical model that describes the
actual situation
Identify th
Technology Innovation
Phases
Invention - creative part of conceiving the part
Innovation - process of bringing the invention or idea into successful use
Diffusion - successful widespread distribution of the innovation
Innovation is associated with the a
Engineering Design Attribute
A characteristic associated with a design problem that the engineer deems
important.
HW #8: List 5 design attributes for each of the following products: phillips head
screw driver, sledgehammer, snow shovel, paper plate, and
Accreditation Board for Engineering and Technology (ABET)
Denition: Engineering is the profession in which a knowledge of mathematics
and natural sciences gained by study, experience, and practice is applied with
judgement to develop way to utilize econ
ME 403: Mechanical System Design I
Class Info:
Prof. Kontouras
MEC 317
Kontouras@adm.njit.edu
(973) 596-3322
Lab assistant:
Fangda
Fc53@njit.edu
By next week:
Textbook
Manual
Group of 3
Grade Breakdown
Exam #1 - 15%
Exam #2 - 15%
Projects - 40%
HW
Element types
One dimensional
Two dimensional
MIDTERM NEXT WEEK!
Method Application
The nite element model is often more than one element type (beam, thin shell,
etc.)
The accuracy of the solution will depend on how well the system is modeled.
Each r
Other Factors in the Engineering Design Process
Specications and standards: ASME, Pressure code, ASCE, AIAA
Health and safety:
OSHA (Occupational Safety and Health Administration) - protects the worker
COSC (Consumer Product Safety Commission) - prote
Class Notes
3.) Synetics (WJ Gordan 1961)
Stage 1:
Make the familiar strange a concentrated effort to search out all aspects
of the problem is made, especially obvious ones. This defining process is
continued until all aspects of the problem become so fam