Finite Element Analysis (FEA) in UG NX

Finite Element Analysis (FEA) in UG NX

What is UG NX? NX, formerly known as Unigraphics NX or usually just UG, is an advanced high-end CAD/CAM/CAE software package, developed by Unigraphics

Uses for UG NX •

Design (parametric and direct solid/surface modelling)

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Engineering analysis (static, dynamic, electro-magnetic, thermal)

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Manufacturing finished design by using included machining modules

Overview •

FEA, or Finite Element Analysis, is a technique for predicting the response of structures and materials to environmental factors such as forces, heat and vibration.

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Software such as NX9.0 computerizes the process and solves complex calculations in less time.

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It can provide the engineer with deep insights regarding the behavior of objects.

FEA Applications •

Structural Analysis

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Thermal Analysis

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Fluid Flow

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Dynamics

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Electromagnetic Compatibility

Element Shapes •

The elements can be classified into different types based on the number of dimensions.

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Element shapes are categorized as follows – One-dimensional – Two-dimensional – Three-dimensional

Types of Nodes Corner Exterior Nodes

Side Interior

Solution Creation •

NX9.0 creates a folder of the same name as that of the file and at the same location where the file is located.

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For every scenario or Soultion, it creates five different files with the name of the scenario.

They are xxx.SIM, xxx.DAT, xxx.txt, xxx.out and xxx.VDM. All the results generated for the scenarios are saved as .vdm files.

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A scenario model can be think of as a variation of a master design model.

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Scenarios contain all the geometric features of the master model. They also support body promotions and interpret expressions.

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Body promotions are used to provide an independently modifiable copy of the master model geometry and serve as a place to hold scenario-specific features such as midsurfaces.

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