CAD/CAM
ME 414: CADD&M
Assignment-1
1. What do you understand by CAD, CAM and CAE? Shortlist some CAD/CAE tools available for vehicle industry for design. [Categorize them in a tabular form: tool-origin-characteristics-applications]. 2. Explain how a CAD system can interact with manufacturing (CAM) system.
How should files be transferred if they are separate software packages?
3. Discuss the principle of FEM & FEA for the optimized design of mechanical components. Enumerate various types of design problems that could be handled by FEA.
4. What are the common modeling methods available for surface design in surface modeling software?
5. Make a comparative analysis of the wire frame, surface and solid modeling.
6. What are the advantages of using third order piecewise Bezier curve over BSpline curve?
7. What is NURB? What are the advantages and disadvantages of using
NURBs in design?
8. Study the shape of a passenger car and analyze how the blending of various surfaces of body panels is done.
9. Explain the following terms:
a) Concatenation and ruled surface.
b) Convex hull
c) Octree representation
10. Write short notes on
a) Direct Beam Refreshes
b) Direct View Storage Tube(DVST)
c) CRT
Page 1 of 2
Problems:
1. If the triangle A (1, 1) B (2, 1) C (1, 3) is scaled by a factor 2, find the new coordinates of the triangle.
2. Translate the rectangle(2,2),(2,8),(10,8),(10,2),2 units along x-axis and 3 units along y-axis.
3. Rotate a rectangle (0,0),(2,0),(2,2),(0,2), 30 degree CCW about its centroid and find the new coordinates of the rectangle.
4. Point A = [1 3 1 1] T is translated by Tr = [1 1 1] T, rotated about its x-axis 90o and then rotated about y-axis 45o. What is the object coordinates in frame O.
5. Plot four control points for a Bezier curve in a plane at (0, 0), (1, 2), (2,-3) and
(5, 0). Draw the Bezier approximation for these points by both sketching and plotting points. Sketch the convex polygon formed by these points.
Assignment-1
1. What do you understand by CAD, CAM and CAE? Shortlist some CAD/CAE tools available for vehicle industry for design. [Categorize them in a tabular form: tool-origin-characteristics-applications]. 2. Explain how a CAD system can interact with manufacturing (CAM) system.
How should files be transferred if they are separate software packages?
3. Discuss the principle of FEM & FEA for the optimized design of mechanical components. Enumerate various types of design problems that could be handled by FEA.
4. What are the common modeling methods available for surface design in surface modeling software?
5. Make a comparative analysis of the wire frame, surface and solid modeling.
6. What are the advantages of using third order piecewise Bezier curve over BSpline curve?
7. What is NURB? What are the advantages and disadvantages of using
NURBs in design?
8. Study the shape of a passenger car and analyze how the blending of various surfaces of body panels is done.
9. Explain the following terms:
a) Concatenation and ruled surface.
b) Convex hull
c) Octree representation
10. Write short notes on
a) Direct Beam Refreshes
b) Direct View Storage Tube(DVST)
c) CRT
Page 1 of 2
Problems:
1. If the triangle A (1, 1) B (2, 1) C (1, 3) is scaled by a factor 2, find the new coordinates of the triangle.
2. Translate the rectangle(2,2),(2,8),(10,8),(10,2),2 units along x-axis and 3 units along y-axis.
3. Rotate a rectangle (0,0),(2,0),(2,2),(0,2), 30 degree CCW about its centroid and find the new coordinates of the rectangle.
4. Point A = [1 3 1 1] T is translated by Tr = [1 1 1] T, rotated about its x-axis 90o and then rotated about y-axis 45o. What is the object coordinates in frame O.
5. Plot four control points for a Bezier curve in a plane at (0, 0), (1, 2), (2,-3) and
(5, 0). Draw the Bezier approximation for these points by both sketching and plotting points. Sketch the convex polygon formed by these points.