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NX NASTRAN (CAE)

NX for Simulation provides the PLM industry’s first end-to-end integrated digital simulation solution for the enterprise, enabling customers to collaborate more effectively using open simulation technology.

Introduce:

NASTRAN is a method of finite element analysis, originally developed by NASA of the US. It is an industry standard for over 40 years. It is used to analyze stress, vibration, structured failure, heat transfer, acoustics, and aeroelasticity analyzer. NX Nastran, a simulation solution created by Siemens PLM Software, is widely used in aerospace, automotive, electronics, heavy machinery, medical device and other industries to build safe, reliable and optimized designs with increasingly shorter design cycles.

Siemens PLM Software has announced the new release of NX Nastran 10.0, is the premier finite element structural analysis solver for linear and nonlinear analysis, dynamic response, rotor dynamics, aeroelasticity and optimization. The NX Nastran 10 release provides you with additional solution types and results, as well as computational performance and engineering workflow improvements.

NASTRAN is a method of finite element analysis, originally developed by NASA of the US. It is an industry standard for over 40 years. It is used to analyze stress, vibration, structured failure, heat transfer, acoustics, and aeroelasticity analyzer. NX Nastran, a simulation solution created by Siemens PLM Software, is widely used in aerospace, automotive, electronics, heavy machinery, medical device and other industries to build safe, reliable and optimized designs with increasingly shorter design cycles.

- Discipline and Physical Domain Extensions
NX Nastran 10 allows you to extend dynamic stress and strain output for frequency response, random response, and transient response analyses for laminate composite models. Additionally, the NX CAE multiphysics environment makes use of the new NX Nastran multistep structural solution sequence, SOL 401 ? NLSTEP, which supports a combination of linear or nonlinear static subcases and modal subcases.

- Computational Performance and Numerical Accuracy
Support for graphics processing unit (GPU) computing divides computations across a large number of relatively small, inexpensive cores to speed solution time of large problems. For optimization solutions, enhanced algorithms support a large number of design variables and/or constraints in a given model with a reasonable amount of computing resources.

- Ease of Modeling and Engineering Workflow
Rotor dynamics improvements extend the definition for the bearing element from 2D to 3D. NX Nastran 10 also supports general rotor systems with non-symmetric supports, and the use of superelements for rotor representations. New materials supported in NX Advanced Nonlinear include potential-based fluid material and a strain-rate dependent plastic material.

What does NX Nastran do?

NX Nastran is ideal for customers who need a single flexible, robust and cost-effective finite element solver solution that is able to support a wide range of product performance simulation processes. It provides a high degree of interoperability with a large number of CAE applications and ensures a common simulation backbone across a wide variety of user needs and throughout the entire digital prototyping process. This ensures that all digital simulation results are consistent and readily accessible to all CAE users within an enterprise with the minimum of analysis re-work.

Key Features

  • Basic: The core subset of NX Nastran which includes a robust suite of linear statics, normal modes, buckling analyses and heat transfer capabilities.
  • Advanced Nonlinear: Provides the capability to analyze FE models with nonlinear behavior due to contacting parts, material nonlinearities and/or geometric nonlinearities (that is; large deformations). An add-on module to NX Nastran-Basic, the Advanced Nonlinear solver is based on an integration of the well known and highly regarded ADINA implicit and explicit solvers with NX Nastran.
  • Dynamic Response: Calculates forced dynamic response to inputs (loads or motions) that vary with time or frequency.
  • Superelements: Plays a key role when solving very large and complex finite element models by decomposing larger structures into smaller substructures called superelements.
  • Direct Matrix Abstraction Program (DMAP): Programming capability that allows customers to expand NX Nastran with their own applications and custom modules.
  • Optimization: Relieves the burden of improving product designs by automating the iterative process of comparing performance against specifications.
  • Aeroelasticity: Simulates structural models in the presence of an air stream.

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