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New release of FEA solver NX NASTRAN V9.0

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BlasMolero

Mechanical
Aug 12, 2009
928
Hello!,
A new NX Nastran release V9.0 containing many enhancements and corrections is available since last October 3, 2013 for platformrs Linux (64-bit) and Windows (64-bit Intel). This is the same NX Nastran release that will be integrated with the new version of FEMAP V11.1, available in the worldwide market next month of November, 2013.

nxnastran_one_solver.png


A complete list of enhancements and corrections can be found in the NX Nastran V9.0 Release Guide (to learn more you can visit also my blog at A quick review of enhancements includes:

Dynamics ...
• New AF (Amplitude-Frequency) eigenvector normalization method.
• Laminate ply results recovery for shell elements in transient solutions.
• RMS von Mises stress now computed for random analysis.
• Residual vector defaults changed to make usage easier.
• Rotor dynamic forces now computed in SOL 101 to allow maneuver load simulation.
• Rotor dynamic bearing element extended to support stiffness and damping as a function of displacement. Currently limited to use in SOL101.

Elements ...
• Improved stress recovery for tetrahedron elements used in SOL 106 or SOL129.

Multi-step Nonlinear ...
• A new NX Nastran solution sequence, SOL 401 - NLSTEP, has been created. It is a multistep, structural solution which supports a combination of static (linear or nonlinear) subcases and modal (real eigenvalue) subcases.

Glue Connections ...
• Option to output glue stiffness matrix in DMIG format.

Advanced Non-Linear ...
• New MATPLCY material model is available for solutions 601 and 701 to define plastic-cyclic materials.
• Bolt preloads on 3D element bolt representations.
• Edge-Edge glue connection support for 2D solid elements.
• Support rotational loads applied to a subset of the model.

Optimization ...
• Equivalent Radiated Power (ERP) added as a DRESP response quantity

Process Improvements ...
• A new system cell to optionally turn off the line numbers in the PUNCH file
• Multiple ACCEL1 entries with the same SID are now permitted
• Option to suppress DMAP compiler warning messages that arise because of undefined input or output to DMAP commands.
• Option to control the numerical precision of matrix data that NX Nastran writes to OP4 files for EXTSEOUT and MBDEXPORT.

Parallel Processing (DMP and SMP) Solutions …
• Improved algorithmic performance for RDMODES. In one test case of a car body model that contains 384,000 elements, 391,000 grids, and 2,300,000 DOF, the elapsed time is reduced by 50%.

Numerical Performance ...
• Option for frequency response solution to be performed with in-core memory. In many large models, this provides significant back-end solution performance.

Best regards,
Blas.

~~~~~~~~~~~~~~~~~~~~~~
Blas Molero Hidalgo
Ingeniero Industrial
Director

IBERISA
48011 BILBAO (SPAIN)
WEB: Blog de FEMAP & NX Nastran:
 
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