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Geometric modelling:
Geometric modelling is an integral part of any Computer-Aided-Design (CAD) system. Integration of geometric modelling; computer graphics along with design principles develops CAD tools. Therefore, in this unit, a brief treatment of representation of curves is presented. Curve representation in parametric form would increase the graphical representation of curves apart from ease of computation. Synthetic forms of curves such like Hermite cubic B-Splines, Bezier, B-Splines and Nurbs have been extensively used to represent several practical situations being modelled in CAD systems. A detailed treatment of these curves is presented. The features of Wire-frame models and its applications are also discussed.
Q. Formed heads of vessels? Formed heads are generally of 2:1 semi ellipsoidal form, but other heads may be used, such as hemispherical, torispherical, conical and toriconical.
What is the importance of the concept of continuum in engineering thermodynamics. Sol: Tough the simplification of matter into atoms, electrons, molecules, and so on, is very c
The rotor of a turbo charged having mass of 10 Kg is keyed to the centre of 25 mm diameter of steel shaft of 400 mm between bearings. Calculate : (i) Critical speed of shaft.
(a) At a point in a material under stress, the resultant intensity of stress across a certain plan is 100 N/mm 2 (compressive) inclined at 30 o to its normal. On another plane th
Q. Can you illustrate Sea Coal? Sea coal or coal dust is finely ground soft coal (pulverized coal). It is added to moulding sand used to make ferrous castings. It tends to obta
Changes in Mechanical Properties along with Tempering: Tempering enhances the toughness and ductility of quenched steel though decreases hardness. Following figure demonstrate
Q. What is Warm extrusion? • Warm extrusion is done above room temperature, but below the recrystallization temperature of the material the temperatures ranges from 424 to 975
The end gates of a lock are 5m high and when closed include an angle of 120 o . The width of the lock is 6.25 m. Each gate is carried on two hinged placed at the top and the bottom
Differentiate hot and cold working process.
Process for solve screw conveyer problem For fully automatic extension of screw conveyer according to screed width we have to go for some design changes, At the end of main
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