Computer Aided Designing

Finite Element Analysis 1)What is shape function? The shape function is the function which interpolates the solution between the discrete values obtained at the mesh nodes. 2)Properties of global stiffness matrix [k] Global stiffness matrix which we come across FEA is a symmetric banded matrix. Global stiffness matrix is formed with the topology. Global stiffness matrix […]

Geometric Transformations 1)Explain two dimensional geometric transformations in details. In computer graphics, transformation is the process of modifying or re-positioning the existing graphics. 2D Transformations takes place in a two dimensional plane. Transformations are helpful in changing size, shape, position, orientation, etc. of the object. Types of 2D geometric transformation: Translation Rotation Scaling Reflection Shear […]

Mathematical Representation of Solids 1)Explain Constructive Solid Geometry (CSG) Definition: It is a system which allows the user to build the model out of the solid graphic primitives, such as rectangular blocks, spheres, cylinders, cones, wedges and torus. It is also known as the Building Block approach. This is one of the most popular methods of […]

Curves and Surfaces 1)Types of surfaces The surfaces entities are mainly of two types: 1. Analytic Surfaces: The surface entities which are defined by analytic equations are known as analytic surfaces. examples: Plane surface, Ruled surface, Tabulated surface and surface of revolution 2. Synthetic Surfaces: The surfaces which are defined by a set of data points are known […]

Introduction to Computer Aided Design 1)What is graphic standard? Explain different CAD standards. Definition: Graphic standards are agreed specifications which defines common interfaces between computer systems or subsystems. List of CAD standards: 1.Graphic Kernel System (GKS): It is and ANSI and ISO standard. It interfaces the application program with graphics support package. A graphical kernel […]