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

NUCLEAR APPLICATIONS OF ELECTRON BEAM WELDING   Electron beam has been applied to the fabrication of fuel elements for pressurised water reactors and the distinct advantages


Explain Wilson HArtnell Governor

(a) Derive a mathematical expression for the efficiency of a dual cycle. (b) An oil Engine working on a dual combustion cycle has a compression ratio 10 and cut-off takes place

Tropical geometric information of solids A face is surrounded by a set of vertices. Using the right-handed rule, the ordering of these vertices for describing a particular face

A steel rod of 20 mm diameter passes centrally through a copper tube of 50 mm external diameter and 40 mm internal diameter. The tube is closed at each end by rigid plates of negli

Economic Order Quantity: Assume an economic order quantity case where annual demand D = 500 units, economic order quantity Q = 100 units, the wanted probability of not stockin

how calculate a stress intensity factor theoritcal?

Define Cam - Application of Computers in Manufacturing CAM can be simply defied as "the application of computers in manufacturing." Most elaborately, CAM refers to the use