8/13/2019 Presentation 30-1-14(2)

1/19

8/13/2019 Presentation 30-1-14(2)

2/19

8/13/2019 Presentation 30-1-14(2)

3/19

SUPE RVI SOR

COM M I TTEE MEM EBERS

8/13/2019 Presentation 30-1-14(2)

4/19

Introduction

Literature Review

Problem Statement

Objectives

Research Methodology

8/13/2019 Presentation 30-1-14(2)

5/19

In today,s Manufacturing environment the optimal use of resources is amajor concern i.e. the utilization of full potential of available resources is

indispensible , so as to survive in competitive markets.

Industrial Engineers in today, s environment require means to develop

the existing products quickly and efficiently. The Concept of Product

Development is not new for an Industrial Engineer .It is the step by step

process of improvement in the product design and process. The

conventional approaches of product development are often very much

time consuming e.g normal factorial approach becomes unfeasible or

sometimes impractical when no. of variables increases.

8/13/2019 Presentation 30-1-14(2)

6/19

Optimization is a process of minimizing ormaximizing some objective function withinconstraints.Design optimization is a process of finding mostappropriate design within available resources.Taguchi method developed by Genichi Taguchi is a

broad spectrum statistical technique of qualityimprovement by making products and their designsmore robust.Taguchi says thatTaguchi orthogonal array may be replaced withnormal factorial approach to reduce optimizationtime & effort and cost.Taguchi orthogonal array considerably reduce theno of experiments, due to which it may used asmean of rapid product development.Ansys is a simulation package widely used inmany research activities as it enable theresearchers and organizations to predict how the

product will be behave in the real world

8/13/2019 Presentation 30-1-14(2)

7/19

The Ansys has gained popularityamong researchers as it eliminatesthe need of development of

prototypes and experimental setupsfor analysisAnsys has the ability to quicklydevelop more optimized design

8/13/2019 Presentation 30-1-14(2)

8/19

8/13/2019 Presentation 30-1-14(2)

9/19

1. To Minimize the total mass of

the Vessel by finding new

optimized design alternative.

2. The other associated benefits

are reduced material cost ,

ease of handling andtransportation etc.

3. To develop a methodology of

rapid product development by

using Taguchi technique and

Ansys.

8/13/2019 Presentation 30-1-14(2)

10/19

8/13/2019 Presentation 30-1-14(2)

11/19

Service ----- Dry Gas Non Corrosive

Length of Cylindrical Portion of Vessel=239 inOuter Diameter of Vessel =20 inInner Diameter of Vessel =17.841 inThickness of material = 1.093 inMaterial's SAE Grade = SAE/A-372 Type 4 (Grade D)Tensile Strength = 105000 Psi Min

Yield Strength = 65000 Psi MinFactor of Safety = 4 for 3000 PsiDesign Temperature = MINUS 20 F to 200 FModulus of Elasticity = 7 x 10^5 PsiPoisson's Ratio = 0.3Density = 0.285 lb/in^3Applied Pressure = 3626 PsiTotal Mass = 4826 lbsSeam less with swaged endsASME Certified Magnetic Particle inspection

8/13/2019 Presentation 30-1-14(2)

12/19

Objective Function f(x) =Minimse Total Mass

Subject to

18 in OD

20 in 230 in L 239 in 25 mm t 28 mm

8/13/2019 Presentation 30-1-14(2)

13/19

The no. of variables =3Level of variables =3

Sr#

Length ofCylindrical

Portion(in)

OuterDia(in)

Thickness

(mm)

L/Dratio

1 236 19.5 27 12.1

2 233 19.25 26 12.1

3 230 19 25 12.1

8/13/2019 Presentation 30-1-14(2)

14/19

To investigate the behavior ofvessel under pressure of 3500 psiFatigue Analysis of different designconfigurations developed by

taguchi orthogonal array will be performed by simulation packageAnsys.Ansys has a capibility of generatingload analysis results of differentdesign alternatives.

8/13/2019 Presentation 30-1-14(2)

15/19

8/13/2019 Presentation 30-1-14(2)

16/19

After Selection of optimized designthe comparison of new design andexisting design will be made , so asto

8/13/2019 Presentation 30-1-14(2)

17/19

In order to validate the resultsobtained ,a mathematical modeldefining objective function with alllimits and constraints will beestablished .The comparison of results obtained

by Ansys and solution ofmathematical equations developedwill validate the results

8/13/2019 Presentation 30-1-14(2)

18/19

8/13/2019 Presentation 30-1-14(2)

19/19