NASTRAN 是 基于微机平台的系列虚拟样机分析仿真系统，主要包括机构分析、动态仿真和有限元分析等专业功能。NX Nastran 是UGS数字化模拟战略的重要组成部分。有了NX Nastran，客户就能够实施其最佳实践，增加模拟对设计的影响。

NX Nastran is a premium computer-aided engineering (CAE) tool that major manufacturers worldwide rely on for their critical engineering computing needs to produce safe, reliable and optimized designs within increasingly shorter design cycle times. For over 30 years, Nastran has been the analysis solution of choice in almost every major industry including aerospace, defense, automotive, shipbuilding, heavy machinery, medical and consumer products – an industry standard for the computer-aided analysis of stress, vibration, structural failure/durability, heat transfer, noise/acoustics and flutter/aeroelasticity.

NX Nastran Solutions

NX Nastran is a standalone solution for the extended enterprise. Typically running on networked server CPUs, NX Nastran supports multiple users, multiple sites and/or multiple finite element pre- and post-processing applications, whether supplied by UGS or other CAE solution providers.

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. Pursuant to this agreement, UGS offers these NX Nastran solutions:

• NX Nastran – Basic: The core subset of NX Nastran and includes a robust suite of linear statics, normal modes, buckling analyses and heat transfer capabilities.
• NX Nastran – 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.
• NX Nastran – Dynamic Response: Calculates forced dynamic response to inputs (loads or motions) that vary with time or frequency.
• NX Nastran – Superelements: Plays a key role when solving very large and complex finite element models by decomposing larger structures into smaller substructures called superelements. .
• NX Nastran – Direct Matrix Abstraction Program (DMAP): Programming capability that allows customers to expand NX Nastran with their own applications and custom modules. .
• NX Nastran – Optimization: Relieves the burden of improving product designs by automating the iterative process of comparing performance against specifications.
• NX Nastran – Aeroelasticity: Simulates structural models in the presence of an air stream. .
• NX Nastran Distributed Memory Parallel (DMP): Distributed memory parallel functionality enables the execution of extremely large models by utilizing the simultaneous processing capabilities of the latest multi-processor platforms and environments including workstation clusters. NX Nastran provides dramatically improved performance scalability up through 64 parallel CPUs. DMP is available as an add-on to NX Nastran- Basic and is included as part of the NX Nastran- Advanced bundle.
• NX Nastran – Rotor Dynamics: Rotating systems are subject to gyroscopic forces such as Coriolis and centrifugal forces that are not present in stationary systems. NX Nastran Rotor Dynamics software provides the capability to predict the dynamic behavior of rotating systems. With the Rotor Dynamics functionality now integrated into NX® Nastran, users can now more easily simulate rotating system loads, perform synchronous and asynchronous analysis to generate Campbell Diagram data, predict whirl frequencies and critical speeds and detect instability in rotating components.
• NX Nastran for Femap: Windows-native desktop CAE solution that combines Femap's pre- and post-processing with NX Nastran analysis.

Additional desktop versions of the NX Nastran solvers are available with the NX,
I-deas NX Series, and Femap CAE offerings.