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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.
What is maximum shear stress in mechanics of materials ? Derivation for maximum and minimum shear stress seperately.
Duty cycle The concept of duty cycle is to be clearly understood before operating any machine. Unlike the arc welding power sources, the resistance welding power sources are de
Consider a simple single machine system. It consists of workpieces that enter the system, wait their turn to be processed on a single machine, and then depart the system. The workp
The cylindrical tank with hemispherical ends shown in Fig. have volatile liquid and its vapor. The liquid density is 800 kg/m3, and its vapor density is negligible. The pressure in
A 16-bit A/D board is arranged to accept voltage signals ranging from -5V to +5V. The A/D board is used to monitor the output from the Wheatstone bridge shown below. The strain g
Write down the uses of following tools and make neat sketches of the same : (a) Vernier Caliper (b) Steel Rule
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What is tetra & octahedral voids & how are they formed ?
Q. Flange Bevel And Lap Ring Weld? The fillet weld attaching the lap ring to the shell shall be an equal leg fillet weld, with the leg dimension equal to the nominal shell thic
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