Autodesk 466B1-05A761-1304 Getting Started Guide - Page 13

Understand How Stress Analysis Works, Analysis Assumptions

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from a basic or fundamental analysis. Performing this basic analysis early in the design phase can substantially improve the overall engineering process. Here is an example of stress analysis use: When designing bracketry or single piece weldments, the deformation of your part may greatly affect the alignment of critical components causing forces that induce accelerated wear. When evaluating vibration effects, geometry plays a critical role in the natural frequency of a part or assembly. Avoiding, or in some cases targeting critical frequencies, can be the difference between failure and expected performance. For any analysis, detailed or fundamental, it is vital to keep in mind the nature of approximations, study the results, and test the final design. Proper use of stress analysis greatly reduces the number of physical tests required. You can experiment on a wider variety of design options and improve the end product. To learn more about the capabilities of Autodesk Inventor Simulation Stress Analysis, view the online demonstrations and tutorials. Understand How Stress Analysis Works Stress analysis is done using a mathematical representation of a physical system composed of: ■ A part or assembly (model). ■ Material properties. ■ Applicable boundary conditions (loads, supports), contact conditions, and mesh, referred to as preprocessing. ■ The solution of that mathematical representation (solving). To find a result, the part is divided into smaller elements. The solver adds up the individual behaviors of each element to predict the behavior of the entire physical system by resolving a set of simultaneous algebraic equations. ■ The study of the results of that solution is referred to as post-processing. Analysis Assumptions Extremely important to your simulation is the accuracy with which you model and specify the actual physical conditions (constraints, loads, materials, contact conditions). The accuracy of these conditions directly influences the quality of your results. Understand How Stress Analysis Works | 7

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from a basic or fundamental analysis. Performing this basic analysis early in
the design phase can substantially improve the overall engineering process.
Here is an example of stress analysis use: When designing bracketry or single
piece weldments, the deformation of your part may greatly affect the alignment
of critical components causing forces that induce accelerated wear. When
evaluating vibration effects, geometry plays a critical role in the natural
frequency of a part or assembly. Avoiding, or in some cases targeting critical
frequencies, can be the difference between failure and expected performance.
For any analysis, detailed or fundamental, it is vital to keep in mind the nature
of approximations, study the results, and test the final design. Proper use of
stress analysis greatly reduces the number of physical tests required. You can
experiment on a wider variety of design options and improve the end product.
To learn more about the capabilities of Autodesk Inventor Simulation Stress
Analysis, view the online demonstrations and tutorials.
Understand How Stress Analysis Works
Stress analysis is done using a mathematical representation of a physical system
composed of:
■
A part or assembly (model).
■
Material properties.
■
Applicable boundary conditions (loads, supports), contact conditions, and
mesh, referred to as preprocessing.
■
The solution of that mathematical representation (solving).
To find a result, the part is divided into smaller elements. The solver adds
up the individual behaviors of each element to predict the behavior of the
entire physical system by resolving a set of simultaneous algebraic
equations.
■
The study of the results of that solution is referred to as post-processing.
Analysis Assumptions
Extremely important to your simulation is the accuracy with which you model
and specify the actual physical conditions (constraints, loads, materials, contact
conditions). The accuracy of these conditions directly influences the quality
of your results.
Understand How Stress Analysis Works |
7