Question

solid work any project

Answer 1

                                                 ABSTRACT

Topology optimization is a numerical technique to obtain a domain in which material is placed to achieve a certain objective subjected to design constraints. This report presents the methodology used for a structural mechanics problem.

Topology optimization is used at the concept level of the design process to arrive at a conceptual design proposal that is then fine-tuned for performance and manufacturability. This replaces time consuming and costly design iterations and hence reduces design development time and overall cost while improving design performance.

In this study, a mounting bracket part is designed. The analysis includes static structural analysis. The part is optimized for maximum stiffness by minimizing the mean compliance (work done by the external forces) with a constraint on volume using OptiStructmodule of HyperWorks software. The obtained topology is used as a basis for engineering the product. The part is analyzed again to verify the deflections and stresses and check whether it is meeting the design constraints.

TABLE OF CONTENTS

Chapter 1

INTRODUCTION.. 1

1.1Optimization. 1

1.2 Computational Optimization Techniques: 1

1.2.1 Optimization algorithms: 1

1.2.2 Iterative methods: 2

1.2.3 Global convergence. 4

1.3 Topology Optimization: 4

1.3.1 Problem Statement: 6

1.3.2 Implementation methodology: 7

1.4 Topology optimization for stiff structures: 8

1.5 Need for Optimization: 9

1.6 Distinction from Shape Optimization: 10

1.7 List of softwares performing topology optimization: 10

1.8 Problem Statement: 12

1.9 Objectives of the project: 13

Chapter 2

LITERATURE SURVEY.. 14

2.1 The Foundations of Structural Optimization. 14

2.2 Truss Topology Optimization. 15

2.3 Homogenization. 17

Chapter 3

METHODOLOGY USED FOR DESIGN, ANALYSIS AND OPTIMIZATION.. 18

3.1 Finite Element Analysis: 18

3.1.1 Basic concepts: 18

3.1.2 Steps of Finite Element Analysis: 21

3.1.3 Application: 23

3.2 Hyperworks. 24

3.3 Optistruct: 24

3.4 Designing procedure: 27

3.5 Steps to be Followed in Analysis and optimization: 28

3.6 Analysis of Bracket: 29

3.6.1 Defining the Material properties: 30

3.6.2 Meshing: 30

3.6.3 Creating properties and assigning them: 31

3.6.4 Applying boundary and loading conditions: 33

3.6.5 Load step: 36

3.7 Optimization of Bracket: 36

3.7.1 Defining design variables. 36

3.7.2 Creating Responses: 36

3.7.3 Creating constraint: 36

3.7.4 Defining Objective: 37

Chapter 4

RESULTS AND DISCUSSION.. 38

4.1 Case 1: 38

4.2 Case 2: 40

4.3 Case 3: 43

4.4 Case 4: 45

4.5 Case 5: 48

4.6 Case 6: 49

Chapter 5

CONCLUSIONS. 53

FUTURE SCOPE.. 54

REFERENCES. 55