エヌ・エス・ティ List of Products and Services

This is a collection of analysis examples including the stability (behavior) analysis of washing machines, eigenvalue optimization analysis of magnetic heads, frequency response analysis of traveling wave ultrasonic motors, and induction heating analysis, among others. Additionally, there are analysis cases not included in the collection, so please contact us if you are interested in any specific analysis examples.

This is a collection of analysis examples including model analysis of railway vehicles, sloshing analysis of ships, airflow analysis inside railway vehicles, large-scale finite element analysis of train vehicle dynamics, and hull strength analysis. Additionally, there are analysis cases not included in the collection, so if you are interested in any specific analysis case, please feel free to contact us.

This is a collection of analysis examples including shape optimization analysis, nonlinear transient analysis of brake rotors, pressure distribution analysis of brake pads, and behavior analysis of diaphragm springs through nonlinear static analysis. Additionally, there are analysis cases not included in the collection, so please contact us if you are interested in any specific analysis cases.

**Case Overview** ■Product Name: Femap Thermal ■Analysis: Thermal Analysis ■Industry: Other In this analysis example, we conducted a thermal radiation transfer analysis within a container composed of multiple radiation areas. In this case, the radiation areas consist of three regions: the interior of the container, which includes the heat source, heated surface, and inner wall; the space between the inner and outer walls; and the area from the outer wall to the environment. The calculation of the form factor is known to be time-consuming due to the exhaustive element-to-element calculations, resulting in a large matrix size. Femap Thermal utilizes the Hemicube method with OpenGL to process the time-consuming form factor calculations quickly. Additionally, with a dedicated interface for thermal analysis, it is easy to set up radiation configurations even for models with multiple enclosures. □ For other features and details, please refer to the catalog.

**Case Overview** ■Product Name: Femap Thermal ■Analysis: Thermal Analysis ■Industry: Mechanical Components Modeling can be challenging when it comes to thermally connecting components due to thermal resistance from contact or thermal conduction at adhesive points. By using the thermal coupling feature, it is possible to define conductive conductance, thermal conductivity, or thermal resistance values between distant meshes that do not share nodes, allowing for thermal coupling between these meshes in calculations. This is an excellent feature that automatically considers the positional relationships of elements and allocates the degree of thermal coupling for each element. In this analysis case, we will analyze the temperature distribution due to heat generation from a chip in a structure consisting of four types of components: chip, substrate, edge guide, and case. The adhesion between the chip and substrate, as well as the edge guide that connects the substrate and case, were modeled using thermal coupling. □ For other functions and details, please refer to the catalog.

**Case Overview** ■Product Name: Femap Thermal, Femap Flow ■Analysis: Thermal Fluid Analysis ■Industry: Automotive Femap Thermal/Flow is software for thermal fluid analysis that operates as a Femap application. It can be used with the same operational feel as Femap. By combining Femap Thermal and Femap Flow for thermal fluid analysis, we calculated the flow of exhaust gases within the muffler and the temperature distribution of the muffler due to high-temperature exhaust. Using Femap Thermal and Femap Flow simultaneously allows for thermal fluid analysis. It can solve complex problems such as heat transfer at the fluid-structure interface, fluid flow, thermal conduction in structures, and consideration of radiation at the surface of structures. In this case, we conducted thermal fluid analysis focused on the muffler. We confirmed that we could obtain the temperature difference of exhaust gases at the inlet and outlet, the flow of exhaust gases within the muffler, and the temperature of the surface of the muffler structure, providing the parameters necessary for design. □ For other features and details, please refer to the catalog.

◆◆Publication Content◆◆ ○Casting cooling simulation using heat transfer and thermal stress analysis (Simcenter Nastran SOL 159/SOL 401) ○Keywords: Nonlinear thermal stress analysis, casting heat transfer, cooling rate, residual stress, shrinkage cavity, solidification shrinkage cavity ○Case Summary ●For other features and details, please refer to the catalog.

Femap Thermal can perform thermal analysis faster than finite element method solvers by using the finite difference method. Customers currently using Simcenter Femap who wish to conduct thermal analysis can do so by adding it to their existing Femap environment. 【Product Features】 ○ High-speed thermal radiation calculations. In particular, using an OpenGL-compatible GUI to compute with the Hemicube method allows for rapid calculation of form factors. ○ Consideration of temperature-dependent material properties is possible. ○ The consideration of Joule heating is possible. ○ By adding the Advanced Thermal extension module, it is possible to conduct more advanced thermal analyses, including considerations for reflection, refraction, absorption, and transmission of transparent bodies, as well as satellite orbit analysis. 【Types of Analysis Possible】 ○ Steady-state heat conduction analysis, transient heat conduction analysis ○ Flow network: Convection heat transfer analysis without fluid analysis ○ Thermal radiation analysis ○ Ray tracing ○ Joint models ○ Joule heating ○ Orbital thermal analysis/sunlight analysis ○ Model degradation ◎ For more detailed information, please refer to the catalog or contact us directly.

This is a collection of analysis examples including seismic motion analysis of structures, wind analysis of high-rise buildings, analysis of liquid storage tanks under seismic conditions, natural frequency and frequency response analysis of reinforced concrete (SRC) structures, and acoustic analysis of audio rooms. Additionally, there are analysis cases not included in the collection, so please contact us if you are interested in any specific analysis cases.

This is a collection of case studies on structural analysis, buckling analysis, thermal analysis, and more of mechanical elements. Additionally, there are analysis cases not included in the collection, so please contact us if you are interested in any specific analysis case.