CAE335 Computer Aided Design and Analysis Syllabus:
CAE335 Computer Aided Design and Analysis Syllabus – Anna University Regulation 2021
COURSE OBJECTIVES:
To familiarize with
• Concepts of modelling of 2D and 3D geometrical elements.
• Concepts of computer graphics.
• CAD Packages and its features.
• Indian standards on drawing practices and standard components
• the effects of real-world conditions on a part or assembly
UNIT I INTRODUCTION
Introduction to CAD – I/O devices – various graphics standards – coordinate systems – Geometric Modelling: Introduction – types of geometric modelling – wire frame – surface and solid modelling. Wireframe entities – types of curves and its mathematical representation – line- circle- ellipseparabola- Cubic spline- Bezier and B-spline (Only Basic treatment). Solid modelling entities – Solid modelling techniques- CSG and BREP – Operations performed in CSG and BREP – Extrude- sweep – linear and Nonlinear- revolve
UNIT II GRAPHIC CONCEPTS (2D and 3D)
Transformations – translation- scaling- reflection- rotation. Concatenated transformation. Inverse transformation. Hidden line removal – Z-Buffer algorithm- brief description of shading and colour rendering techniques. Manipulation and editing of entities – selection methods – dragging – clippingtrimming- stretching- offsetting- pattern- copying- deleting – regenerating- measuring. Brief description of animation- types and techniques
UNIT III SOFTWARE PACKAGES AND RECENT TECHNOLOGY
All about popular commercial solid modelling packages — their salient features- technical comparison- modules and Tools available- brief outline of Data exchange standards. Brief outline of feature technology – classification of features- design by features- applications of features- its advantages- and limitations
UNIT IV FEM FUNDAMENTALS
Introduction to finite element method – principle- Steps involved in FEA – nodes- element and their types- shape function-constraints, forces and nodal displacements-stiffness matrix- solution techniques. Analysis of spring element. Simple problems involving stepped bars subjected to axial loading and simple structural members for triangular element
UNIT V ANALYSIS
Stages of FEA in a CAD environment – Pre-processor- solver and postprocessor. Pre-processing – FEA modelling – geometry generation- node generation- element generation- boundary constraintsload constraints- – mesh generation and refining. Solving – performing the actual analysis. Post processing – Types of 0/P available- interpretation of results. Demonstration of the above using any one popular commercial package. Other types of analysis: Brief outline of kinematical analysismanufacturability analysis and simulation.
TOTAL: 45 PERIODS
COURSE OUTCOMES:
On successful completion of this course, the student will be able to
CO1: Plan and read engineering drawings.
CO2: Identify engineering objects and components from drawings.
CO3: Utilize solid models created in computer.
CO4: Compare the relation between 2D drafting and 3D models.
CO5: Choose the graphical models for further engineering applications.
TEXT BOOKS:
1. Chairs Mcmahon and Jimmie Browne, “CAD / CAM: Principles, Practice and Manufacturing Management”, Prentice Hall, 2nd Ed., 1999.
2. Ibrahim Zoid., “CAD / CAM”, Theory and Practice, TMH, 2001.
3. Radhakrishnan, P., “CAD / CAM / CIM”, New Age International, 2000.
REFERENCES:
1. Chandupatla and Bolagundu., “Introduction to Finite Element Methods in Engineering”, Pearson Education India, 4th Ed., 2015.
2. Mikell P. Groover, “CAD/CAM: Computer-Aided Design and Manufacturing”, PHI, 2003.
3. Newman and Sproull, R.F., “Principles of interactive Computer Graphics”, TMH,1997.