Inventor Nastran 2019: What You Need to Know About Product Keys and Licensing Options
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What is Inventor Nastran 2019?
Inventor Nastran 2019 is a CAD-embedded finite element analysis (FEA) software that enables engineers and designers to perform simulation analysis within Autodesk Inventor. It is powered by the Autodesk Nastran solver, which is an industry-standard FEA solver that provides accurate and reliable results for various types of analysis.
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Inventor Nastran 2019 offers simulation capabilities that span across multiple analysis types, such as linear and nonlinear stress, dynamics, heat transfer, impact analysis, static fatigue, response spectrum analysis, and more. It also provides advanced material models for plastic, rubber, soft tissue, and other nonlinear materials. With Inventor Nastran 2019, you can simulate complex real-world scenarios and optimize your design performance and efficiency.
How to install Inventor Nastran 2019?
In this section, we will show you how to download, install, and activate Inventor Nastran 2019 on your computer. Before you start, make sure you have the following:
A valid Autodesk account and subscription
An internet connection
Enough disk space and memory
Administrative privileges on your computer
System requirements
The system requirements for running Inventor Nastran 2019 are as follows:
Component
Requirement
Operating system
64-bit Microsoft Windows 10, 8.1, or 7 SP1
CPU
64-bit Intel or AMD processor with SSE2 support
RAM
8 GB minimum, 16 GB recommended
Disk space
40 GB for installation, plus additional space for analysis files
Graphics card
DirectX 10 or higher compatible card with 1 GB of memory and Shader Model 5 support
Display resolution
1280 x 1024 or higher with True Color mode
Pointing device
Microsoft-compliant mouse or other pointing device
Installation instructions
Follow these steps to install Inventor Nastran 2019 on your computer:
Go to the Autodesk Account portal and sign in with your Autodesk ID and password.
Under the Products & Services tab, find Inventor Nastran 2019 and click on the Download button.
Select the version, language, and operating system of your choice and click on the Browser Download button.
Save the installer file to a convenient location on your computer and run it as an administrator.
Follow the on-screen instructions to complete the installation process. You may need to restart your computer after the installation.
Launch Autodesk Inventor and click on the Autodesk Nastran In-CAD tab on the ribbon. You should see a dialog box asking you to activate your license.
Licensing options
Inventor Nastran 2019 offers three types of licenses for different user needs:
Single-user license: This license allows you to use Inventor Nastran 2019 on one computer only. You need to sign in with your Autodesk ID and password to activate and use the software. You can also use the software offline for up to 30 days.
Multi-user license: This license allows you to use Inventor Nastran 2019 on multiple computers within a network. You need to have a network license server that manages the distribution of licenses to users. You can also borrow a license from the server for offline use for up to six months.
Network license: This license allows you to use Inventor Nastran 2019 on any computer that can access the internet. You need to have an Autodesk account and a subscription plan that includes Inventor Nastran 2019. You can also use the software offline for up to seven days.
To activate your license, you need to select the type of license you have and follow the instructions on the dialog box. For more information on how to activate your license, you can visit the Autodesk Knowledge Network website.
How to use Inventor Nastran 2019?
In this section, we will give you a general overview of how to access and operate Inventor Nastran 2019 from Autodesk Inventor. You will learn how to create and modify your model, assign materials, apply loads and constraints, set up analysis settings, run the analysis, and view the results.
The Autodesk Nastran In-CAD tree
The Autodesk Nastran In-CAD tree is the main interface for working with Inventor Nastran 2019. It is located on the left side of the Inventor window and consists of the following components:
Model: This is where you can create and modify your 3D model using the standard Inventor tools. You can also import models from other CAD software or create them from scratch.
Materials: This is where you can assign materials to your model components. You can choose from a library of predefined materials or create your own custom materials.
Loads: This is where you can apply external forces, pressures, temperatures, accelerations, and other effects to your model. You can also define load cases and load combinations for different scenarios.
Constraints: This is where you can apply boundary conditions to your model, such as fixed supports, pins, springs, contacts, and other interactions. You can also define constraint sets and constraint combinations for different scenarios.
Analysis Settings: This is where you can specify the type of analysis you want to perform, such as linear statics, nonlinear statics, heat transfer, modal analysis, etc. You can also adjust the analysis options, such as mesh size, convergence criteria, output requests, etc.
Results: This is where you can view and interpret the results of the analysis using various tools and plots. You can also generate reports and export the results to other formats.
Basic analysis capabilities
Inventor Nastran 2019 provides a range of basic analysis capabilities that can help you evaluate the structural behavior of your model under various conditions. Some of the basic analysis types that you can perform with Inventor Nastran 2019 are:
Linear statics: This analysis type calculates the stress, strain, displacement, and reaction forces of your model under static loads and constraints. It assumes that the material behavior is linear and elastic, and that the deformation is small.
Linear buckling: This analysis type calculates the critical load factor and buckling mode shapes of your model under compressive loads and constraints. It assumes that the material behavior is linear and elastic, and that the deformation is small.
Heat transfer: This analysis type calculates the temperature distribution and heat flux of your model under thermal loads and constraints. It can handle steady-state or transient conditions, and conduction, convection, or radiation effects.
Modal analysis: This analysis type calculates the natural frequencies and mode shapes of your model under free vibration. It assumes that the material behavior is linear and elastic, and that the damping is negligible.
Advanced analysis capabilities
Inventor Nastran 2019 also provides a range of advanced analysis capabilities that can help you simulate complex real-world scenarios and nonlinear phenomena. Some of the advanced analysis types that you can perform with Inventor Nastran 2019 are:
Nonlinear statics: This analysis type calculates the stress, strain, displacement, and reaction forces of your model under static loads and constraints. It can handle large deformation, nonlinear material behavior, contact interaction, and other nonlinear effects.
Nonlinear transient dynamics: This analysis type calculates the stress, strain, displacement, velocity, acceleration, and reaction forces of your model under dynamic loads and constraints. It can handle large deformation, nonlinear material behavior, contact interaction, damping, inertia, and other nonlinear effects.
Impact analysis: This analysis type calculates the stress, strain, displacement, velocity, acceleration, and reaction forces of your model under impact loads and constraints. It can handle large deformation, nonlinear material behavior, contact interaction, damping, inertia, and other nonlinear effects.
Static fatigue: This analysis type calculates the fatigue life and damage of your model under cyclic loads and constraints. It can handle stress-based or strain-based fatigue criteria, mean stress correction, S-N curves, and other fatigue parameters.
Response spectrum analysis: This analysis type calculates the peak response of your model under seismic or shock loads. It can handle linear or nonlinear material behavior, damping, modal superposition, base excitation, and other response spectrum parameters.
How to interpret results with Inventor Nastran 2019?
In this section, we will show you how to view and understand the results of the analysis using various tools and plots. You will learn how to create result plots, section views, and mesh convergence studies.
Result plots
Result plots are graphical representations of the analysis results, such as stress, strain, displacement, temperature, heat flux, etc. You can create result plots using the Results component of the Autodesk Nastran In-CAD tree. To create a result plot, follow these steps:
Select the Results component and right-click on it.
Select Create Plot from the context menu.
Select the type of plot you want to create, such as Contour Plot, Vector Plot, Deformation Plot, or XY Plot.
Select the result quantity you want to plot, such as Von Mises Stress, Total Strain, Displacement Magnitude, Temperature, Heat Flux, etc.
Select the load case or load combination you want to plot.
Adjust the plot settings, such as color scale, legend, labels, units, etc.
Click on the OK button to generate the plot.
You can also edit, delete, duplicate, or export the plot using the right-click menu. You can also animate the plot using the Play button on the toolbar.
Section views
Section views are cross-sectional views of the model and the results that allow you to examine internal stresses and strains. You can create section views using the Section View tool on the toolbar. To create a section view, follow these steps:
Select the Section View tool on the toolbar.
Select the plane or face that defines the section plane.
Drag the section plane to adjust its position and orientation.
Click on the Apply button to create the section view.
You can also edit, delete, or export the section view using the right-click menu. You can also toggle between full model view and section view using the Section View button on the toolbar.
Mesh convergence
Mesh convergence is a method of checking the accuracy and reliability of the results by performing the analysis with different mesh sizes and comparing the results. The mesh size is the size of the finite elements that discretize the model. A finer mesh usually gives more accurate results, but also takes more time and memory to solve. A coarser mesh usually gives less accurate results, but also takes less time and memory to solve.
To perform a mesh convergence study, follow these steps:
Select the Analysis Settings component and right-click on it.
Select Mesh Convergence from the context menu.
Select the result quantity you want to check for convergence, such as Von Mises Stress, Total Strain, Displacement Magnitude, Temperature, Heat Flux, etc.
Select the load case or load combination you want to check for convergence.
Select the model component or components you want to check for convergence.
Adjust the mesh convergence settings, such as number of iterations, initial mesh size, mesh size increment, convergence tolerance, etc.
Click on the OK button to start the mesh convergence study.
You can view the results of the mesh convergence study in an XY plot that shows the variation of the result quantity with respect to the mesh size. You can also view the percentage error and the convergence status for each iteration. The goal is to find the optimal mesh size that gives acceptable accuracy with minimal computational cost.
How to optimize your design with Inventor Nastran 2019?
In this section, we will show you how to use Inventor Nastran 2019 to improve your design performance and efficiency. You will learn how to use design optimization, frame generator idealization, and automatic midplane mesher features.
Design optimization
Design optimization is a feature that allows you to find the optimal values of design variables that satisfy certain objectives and constraints. For example, you can use design optimization to minimize the weight of your model while maintaining a certain factor of safety or stiffness. To use design optimization, follow these steps:
Select the Analysis Settings component and right-click on it.
Select Design Optimization from the context menu.
Select the type of optimization you want to perform, such as Minimize Mass, Maximize Stiffness, Minimize Compliance, etc.
Select the design variables you want to optimize, such as dimensions, material properties, load magnitudes, etc.
Select the constraints you want to impose on the optimization, such as stress limits, displacement limits, frequency limits, etc.
Select the load case or load combination you want to optimize for.
Adjust the optimization settings, such as number of iterations, convergence criteria, search method, etc.
Click on the OK button to start the optimization process.
You can view the results of the optimization process in an XY plot that shows the variation of the objective function with respect to the iterations. You can also view the optimal values of the design variables and their percentage change from their initial values. You can also compare the optimized model with the original model using result plots and section views.
Frame generator idealization
Frame generator idealization is a feature that allows you to simplify structural members into beam elements for faster and more accurate bending results. Beam elements are one-dimensional elements that can capture the bending, axial, and torsional behavior of slender members. To use frame generator idealization, follow these steps:
Select the Model component and right-click on it.
Select Frame Generator Idealization from the context menu.
Select the structural members you want to idealize, such as pipes, tubes, rods, etc.
Select the cross-section type and size for each member, such as circular, rectangular, I-beam, etc.
Select the orientation and offset of the cross-section for each member.
Click on the OK button to create the idealized model.
You can view the idealized model in a wireframe mode that shows the beam elements and their nodes. You can also edit, delete, or export the idealized model using the right-click menu. You can also switch between the original model and the idealized model using the Frame Generator Idealization button on the toolbar.
Automatic midplane mesher
Automatic midplane mesher is a feature that allows you to create shell elements for thin components for faster and more accurate bending results. Shell elements are two-dimensional elements that can capture the bending and membrane behavior of thin plates and shells. To use automatic midplane mesher, follow these steps:
Select the Analysis Settings component and right-click on it.
Select Automatic Midplane Mesher from the context menu.
Select the thin components you want to mesh, such as sheets, panels, flanges, etc.
Select the mesh size and quality for each component.
Click on the OK button to create the meshed model.
You can view the meshed model in a shaded mode that shows the shell elements and their midplanes. You can also edit, delete, or export the meshed model using the right-click menu. You can also switch between the original model and the meshed model using the Automatic Midplane Mesher button on the toolbar.
Conclusion
In this article, we have introduced you to Inventor Nastran 2019, a CAD-embedded finite element analysis software that enables you to perform simulation analysis within Autodesk Inventor. We have shown you how to install, use, interpret, and optimize Inventor Nastran 2019 for various types of analysis. We hope that this article has helped you to understand the benefits and features of Inventor Nastran 2019 and how to apply them to your design projects.
FAQs
Here are some frequently asked questions about Inventor Nastran 2019:
Q: How much does Inventor Nastran 2019 cost?
A: Inventor Nastran 2019 is included in the Autodesk Product Design & Manufacturing Collection, which costs $2,965 per year for a single-user license. You can also purchase Inventor Nastran 2019 separately for $1,985 per year for a single-user license.
Q: What are the differences between Inventor Nastran 2019 and Autodesk Nastran 2019?
A: Inventor Nastran 2019 is a CAD-embedded version of Autodesk Nastran 2019 that allows you to perform simulation analysis within Autodesk Inventor. Autodesk Nastran 2019 is a standalone version of Autodesk Nastran that allows you to perform simulation analysis using any CAD software or file format.
Q: How can I get support for Inventor Nastran 2019?
A: You can get support for Inventor Nastran 2019 from various sources, such as:
The Autodesk Knowledge Network website, which provides tutorials, videos, documentation, forums, and blogs on Inventor Nastran 2019.
The Autodesk Support website, which provides technical support, downloads, updates, service packs, and patches for Inventor Nastran 2019.
The Autodesk Community website, which provides peer-to-peer support, tips, tricks, and best practices from other users of Inventor Nastran 2019.
The Autodesk Education website, which provides free access, learning resources, and certification for