Linear Static Analysis (SOL101)

Conducts analysis in the elastic area where a material will be restored to the original shape when a load is removed, in case of the material with relatively small deflection. It allows you to evaluate material strength and rigidity.

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Eigen Value Analysis (SOL103)

Calculates the eigen mode and the eigen frequency of a material. This module is used to know the eigen frequency of a product part to support a design change, and utilize the result of eign value analysis for the response analysis such as frequency response and transient response, etc.
For physical property value, mass density is needed as well as the factor on the rigidity defined in the static analysis phase.

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Buckling Analysis (SOL105, SOL106)

When a load is given to a structure in the axial direction continuously and the load exceeds a limit, the material will be defected in the horizontal direction. It is called buckling. SOL105 is the linear buckling analysis capability that is used for buckling of an elastic material. SOL106, the basic nonlinear analysis capability, can be used for nonlinear analysis study considering material nonlinear and geometric nonlinear.

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Heat Transfer Analysis (SOL153, SOL159)

Supports heat transfer based on temperature difference in a material, heat flux between a material and fluid, and heat radiation through electromagnetic wave. This module can calculate them by assigning heat transfer ratio and other physical property value, initial temperature, temperature load and temperature constraint condition.

• Steady-State Heat Transfer Analysis (SOL153)
  Predicts temperature distribution in the state that time passed enough and the temperature distribution does not depend on time.
• Transient Heat Transfer Analysis (SOL159)
  Offers the transient analysis capability that predicts temperature distribution in the state that the temperature change depends on time.

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Basic Nonlinear Static Analysis (SOL106)

Basic Nonlinear Static Analysis includes the following features, and enables you to analyze the various nonlinear phenomenon.

• Nonlinear material [elasto-plastic, super elastic (rubber elastic), creep, etc.]
• Large deflection and large rotation
• Nonlinear contact (Point contact with GAP element and SLIDELINE contact)
• Nonlinear buckling
• Element library - Solid elements (e.g., CHEXA, CTETRA) and shell elements (e.g., CQUAD4) frequently used for linear analysis can be used for the material nonlinear analysis and large deflection analysis.

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Basic Nonlinear Transient Response Analysis (SOL129)

Transient response analysis computes response to a relatively short time input for a structure in accordance with time progress. Basic Transient Response Analysis includes the following features:

• As well as Basic Nonlinear Analysis, supports material nonlinear analysis and large deflection analysis.
• Not the same as the case of Basic Nonlinear Analysis, mass of a structure is essential, which enables you to consider damping.
• Enables you to consider load depending on time.
• As well as Nonlinear Analysis, supports linear transient response analysis.
• Direct method is adopted as an analysis method.

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Dynamic Response Analysis

• Frequency Response Analysis (SOL108, SOL111)

  Calculates response to excitation force in the frequency area of a structure in the linear range (linear material, slight deflection). Load is defined with the function of force or enforced moment (displacement, speed and acceleration). Damping can be also defined. Solution method has the following two types:

  • Direct Frequency Response Analysis (SOL108)
    Solves coupled equation directly with numerical integration.
  • Modal Frequency Response Analysis (SOL111)
    Since this analysis simplifies equation of motion using an eigen mode of a structure and computes numerical integration in the state uncoupled, you will find efficiency in calculation. Therefore, this method should be used for a relatively large model.
• Transient Response Analysis (SOL109, SOL112, SOL108, SOL111)
  

  Calculates response to excitation force in the frequency area of a structure in the linear range (linear material, slight deflection). Load is defined with the function of force or enforced moment (displacement, speed and acceleration). Damping can be also defined. As well as Frequency Response Analysis, there are two types of solution method:

  • Direct Transient Response Analysis (SOL109)
    Solves coupled equation directly with numerical integration. Displacement and speed can be set as an initial condition, which is the capability only for the direct method.
  • Modal Transient Response Analysis (SOL112)
    Since this analysis simplifies equation of motion using an eigen mode of a structure and computes numerical integration in the state uncoupled, you will find efficiency in calculation. Therefore, this method should be used for a relatively large model.
• Random Response Analysis

  Random vibration means the vibration having statistical properties including pressure fluctuation in relation to earthquake, aircraft, multistory building, input from rough road surface to a vehicle, and acoustic excitation caused by noise from a rocket launch or jet engine. These are described by using power spectrum density function. NX Nastran Random Response Analysis runs as post-processing of Frequency Response Analysis, and can obtain response, PSD and outputs from autocorrelation function. The part of Frequency Response Analysis supports the two types of solution, direct and model methods:

  • Direct Random Response Analysis (SOL108)
  • Modal Random Response Analysis (SOL111)
• Complex Eigenvalue Analysis (SOL107, SOL110)

  Enables you to know the vibration mode including damping or phenomenon with friction of structures like brake noise. This analysis is also used to verify stability of modeled structure (e.g., servo mechanism and rotating system) using transfer functions. NX Nastran has the four types of eigen extraction method including Upper Hessenberg and complex Lanczos. There are two types of equation integration method:

  • Direct Complex Eigenvalue Analysis (SOL107)
    Integrates equation directly to compute an eigen value.
  • Modal Complex Eigenvalue Analysis (SOL110)
    Calculates undamped mode first, and computes matrices by converting with the mode from physical variable to modal one.

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Aeroelastic Analysis (SOL144)

Analyzes a structural model in an air flow. The static aeroelastic analysis capability using the general finite element method enables to design and analyze stress, load, aero property and control system.

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Superelement Aanalysis

Since Superelement Analysis divides a large structure into small substructure sets called superelement, it significantly helps solve a large and complicated finite element model.

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Extension programming capability (DMAP)

NX Nastran capabilities can be extended by building an application with DMAP and installing it as a custom module. For example, you can add calculation about response from a structure, treat neutral data (e.g., system matrix that is externally generated) with NX Nastran, embed your own capabilities without waiting for the new version released, and plot the results other than standard plotting.

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Rotor Dynamics (SOL110)

Offers analysis with the gyro effect for a rotating system including a spindle, turbine and propeller.

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Design Optimization (SOL200)

Allows design optimization and sensitivity analysis for each type of analysis. Since this capability lets you well understand the complicated relation between design parameters and influence from parameter editing, the design risk can be decreased.

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