Surface modeling, Mechanical Engineering

SURFACE MODELING:

The process of modeling is built much easier for a mathematical description of an object or at least on a part of the object might be applied. Surfaces might be described mathematically as in 3-dimensions space like parametric & non-parametric equations. There are two kinds of surfaces that are commonly utilized in modelling system - parametric & implicit. Parametric surfaces are indicated by a set of three functions one for each co-ordinates. Implicit surfaces are described by a polynomial of three variables. Parametric surfaces may represent sphere and ellipsoids where as spheres may easily be defined by implicit surfaces. In terms of expressive power, implicit surfaces are more powerful than parametric surfaces. Surface revolution is a method of generating as 3-D surface by revolving a 2-D entity. Such as a line, a curve, a plane,  around an axis in space.

3-D surfaces are also attained by transversity an entity, for example a line polygone or a curve along a path in space. The resulting surfaces are known as sweep surfaces. The simplest sweep entity is any point. Difficult paths may be developed by combining simple paths, for example combining two paths of a point yield a single turn of a helical path. Several design tools originated from car companies, for example Bazier curves and surfaces were produced by Citroen and Renault, Coon's patches were built up for Ford Detroit and Gorden surfaces for General Motors Detroit. The primary step in design is the manual production of a model in wood or clay which is then digitised and records points whereas the sensor touches the model surface. From these degitised points, by using various design tools, surfaces in 3-D format are produced.

Posted Date: 1/25/2013 6:03:28 AM | Location : United States







Related Discussions:- Surface modeling, Assignment Help, Ask Question on Surface modeling, Get Answer, Expert's Help, Surface modeling Discussions

Write discussion on Surface modeling
Your posts are moderated
Related Questions

Dimension Styles Dimension styles are the basic method used to control the way dimensions look . Using Dimension styles you can change the text font, arrow head style,relativ

Q. Stress analysis requirements? All other lines requiring review by the stress group are to be checked for adequate support, stability, excessive movement, etc. Where hand ca

strain energy = m2l/2Ei

Atmospheri c Pressure (P atm ): It is pressure exerted by atmospheric air on any surface. It can be measured by a barometer. The standard values of it are; 1 P atm = 760

What are square footings? SQUARE FOOTINGS This type of footing, also termed an isolated spread footing is probably the most common, simplest and most economical of the vario

What the necessary condition for a heat transfer process to occur?

What can a valve do?  It can prevent flow (on/off), allow variable control of the flow and provide a safe working environment. What sort of questions should we be asking when selec

Determine the value of maximum bending moment: Draw the shear force & bending moment diagrams for the beam overhanging on both of sides as illustrated in Figure. Determine the

Q. Show Pneumatic Test? Pneumatic testing presents hazards that must be addressed as part of the engineering design of the pressure vessel. Due to the additional hazards of