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Design Philosoph

Week 1

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Course Objective

The course focuses on the fundamentals and principl

mechanical elements, the manufacturing considerati

the product design processes .

The goal of this course is to understand the very basi

principles of these processes without dealing with

mathematical equations.

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By the end of this course the student should be

Understand the principles of design, and the design processe

Classify the main types of mechanical design.

Identify the different types of machine tool elements, and rec

pros and cons of each element.

Get an overview of the manufacturing considerations.

Identify the product design process and its considerations. Interact with the engineering world by applying the previousl

principles in a case study.

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We will discuss in this week the follow

Design Philosophy

Design Process

Design Levels

Types of Mechanical Design

How to be Successful Designer

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What is Design anyway ?

Engineering Design is the process of devising a system

component, or process to meet desired needs.

It is a decision-making process (often iterative), in wh

basic sciences, mathematics, and engineering science

applied to optimally convert resources to meet a stat

objective.

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Design is everywhere

Design is in everything around us, choose anything you see even if you

universe, you will discover that its well designed.

As an example you will find that you have a fashion designer who desig

and its size.

Interior decorative designer who made the art in your home. A machin

who made the equipment that you use in your factory, also furniture, ebuildings, food products; as an example; each of it has an independent

creates of develop that product which is called a designer and the proc

creation is called Design.

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The Design Process Paradox

Throughout the solutionprocess knowledge about the

problem and its potential

solutions is gained and,

conversely, design freedom is

lost.

The more you learn the less

freedom you have to use what

you know.

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Design Levels

Adaptive Design

Development Design

New Design

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Types of Mechanical Design

Before beginning, we must realize that most design situations are a mix of various type

Traditionally, we decompose mechanical engineering by discipline: fluids, thermodyna

mechanics, and so on

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Types of Mechanical Design

Selection Design

Configuration Design

Parametric Design

Original Design

Redesign

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Selection design involves choosing one item(or maybe more) from a lis

items. We do this type of design every time we choose an item from a catalo

Selection Design

To solve a selection problem we must start with a clear need

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Configuration Design

In this type of problem, all the components have been designed and th

how to assemble them into the completed product.

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Parametric Design

Parametric design involves finding values for the features that characte

object being studied.consider a very simple example.

We want to design a cylindrical storage tank that must hold 43of liquid

described by the parameters r, its radius, and l, its length and its volume is

by V = r 2

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Original Design

We use it Any time the design problem requires the development of a process, assem

component not previously in existence .

In many ways the other types of design problemsselection, configuration, and para

simply constrained subsets of an original design

Example Design a machine element with based on its standard

Spur Gear on AGMA(American Gear Manufacturing Association) Standard

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Redesign

Most design problems solved in industry are for the redesign of an exis

Or in other words the modification of an existing product to meet new

requirements.

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How to be Successful Designer

First you need to be in the shoe of 3 persons

Product Manager

Product Designer

Manufacturing Manager

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Mechanical Design Languages

Many languages or representations can be used to describe a mecha

Skilled Designer Speaks Many Languages

GraphicaAnalytical

Physical

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Thank You