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[Example] Calculation of cantilever characteristics

[Example] Calculation of cantilever characteristics

Using the virtual fluid capabilities of NX Nastran, we investigated the changes in the natural frequency of a cantilever in a vacuum, in the atmosphere, and in water.

【Case Overview】 ■Product Name: NX Nastran ■Analysis: Linear Static Analysis, Modal Analysis, Frequency Response Analysis ■Industry: Other A cantilever is a sensor that detects the interaction force between the probe and the sample in atomic force microscopy by measuring changes in displacement or resonance frequency. It is applied in fields such as precision machining and measurement of nanostructures. Since the detection sensitivity is determined by the mechanical properties of the cantilever, it is very important to determine those properties; however, the spring constant and resonance frequency of the cantilever can vary significantly depending on the vibrating environment. In this analysis example, we used the virtual fluid function of NX Nastran to investigate the changes in the natural frequency of the cantilever in a vacuum, in the atmosphere, and in water. □ For other functions and details, please refer to the catalog.

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[Case Study] Application Case Series 1 of Plastic Processing Simulation - Deep Drawing Process

[Case Study] Application Case Series 1 of Plastic Processing Simulation - Deep Drawing Process

This analysis example introduces a drawing process for a corner box-shaped container.

**Case Overview** ■Product Name: NX Nastran ■Analysis: Nonlinear Static Analysis ■Industry: Mechanical Components Plastic processing primarily involves forming processes that include contact between tools and workpieces. Among these, the method of forming bottomed containers from metal sheets using a punch and die is called deep drawing. Various factors such as the structure and material of the mold, the shape of the blank, and friction conditions influence the process, resulting in changes in the stress distribution in different parts of the blank during forming, leading to issues like cracking and wrinkling. This analysis example introduces a deep drawing case of a rectangular box-shaped container. The initial shape of the blank is 200x200 with a thickness of 0.82mm. The die is a rigid flat plate with a square hole measuring 102.5x102.5 with rounded corners of 10mm radius. The punch is a rigid body with a size of 100x100 and has steps, and similarly, the wrinkle suppressor is also a rigid flat plate. □ For other functions and details, please refer to the catalog.

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[Example] Thermal conduction analysis using thermal coupling functionality

[Example] Thermal conduction analysis using thermal coupling functionality

We analyzed the temperature distribution of heat conduction due to heat generation from the chip in a structure composed of a chip, substrate, edge guide, and case.

【Case Overview】 ■Product Name: Femap Thermal ■Analysis: Thermal Analysis ■Industry: Mechanical Components Modeling thermal connections between components can be challenging due to thermal resistance from contact and heat conduction at adhesive joints. 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 in calculations between these distant meshes. 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 within a structure consisting of four types of components: chip, substrate, edge guide, and case. The adhesive 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.

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[Example] Optimization Analysis of Connecting Rod Shape

[Example] Optimization Analysis of Connecting Rod Shape

In the case where compressive or tensile loads act on the connecting rod, we determined the shape that minimizes the equivalent stress while maintaining the volume (mass).

【Case Summary】 ■Product Name: OPTISHAPE-TS ■Analysis: Optimization Analysis ■Industry: Automotive In the case where compressive and tensile loads act on the connecting rod, we sought the shape that minimizes the equivalent stress while maintaining volume (mass). Additionally, we performed optimization with the condition that the elliptical deformation of the large end hole under tensile load is minimized, as well as optimization that maintains stress and displacement while minimizing volume. The analysis was conducted using a 1/2 model. □For other features and details, please refer to the catalog.

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[Case Study] Improving the Efficiency of Repetitive Calculations Using Super Element Function

[Case Study] Improving the Efficiency of Repetitive Calculations Using Super Element Function

Reduce the computational load of large-scale models!! It can also be utilized for information security!!

**Case Summary** ■Product Name: NX Nastran ■Industry: Mechanical Components The super-element feature of NX Nastran reduces computational load by dividing large models for analysis or by reducing parts of the model (external super-elements) to create a smaller analysis model, thereby shortening computation time when changes are made to other parts. In this case, when designing the natural frequency of a fan blade, the non-changing boss section was reduced as an external super-element and analyzed in conjunction with the mesh model of the blade section to verify analysis accuracy and evaluate computation time reduction. This method saves computation time in cases where there are many repetitive calculations, such as performance evaluations during the design phase or countermeasure considerations at the component level, and the more unchanged parts there are, the more significant the benefits. Additionally, by converting in-house component models into super-elements and providing them to other companies, the shapes can be treated as black boxes, which can also be utilized for information security. □ For other features and details, please refer to the catalog.

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[Example] Optimization of Golf Club Heads

[Example] Optimization of Golf Club Heads

Analysis of golf club heads using optimization!!!

It is ideal for the characteristics of the golf club head to match the characteristics of the golfer, allowing for maximum performance of its capabilities. In this case, the key indicator is the initial ball speed at impact. In this example, we determined the optimal face thickness and shaft stiffness that maximize the initial speed under defined loading conditions (average golfer's power) using optimization methods. We created a process using ModelCenter, an optimization support tool, to analyze the impact of face structure and shaft stiffness on initial speed. This enabled us to examine the influence of each parameter and seek the optimal golf club characteristics. For more detailed information, please refer to the catalog or contact us directly.

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Collection of Case Studies on Mechanical Element Analysis

Collection of Case Studies on Mechanical Element Analysis

Collection of analysis cases related to mechanical elements!! There are various examples, so please take a look.

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 if you are interested in any specific analysis case, please feel free to contact us.

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Collection of Case Studies on Architectural Analysis

Collection of Case Studies on Architectural Analysis

Collection of case studies on architecture and structural analysis!! There are various examples, so please take a look!!!

This is a collection of analysis examples including seismic motion analysis of structures, wind analysis of high-rise buildings, analysis of liquid storage tanks subjected to earthquakes, 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.

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Railway and Shipping Related Analysis Case Studies

Railway and Shipping Related Analysis Case Studies

A collection of analysis examples related to railways and shipping! There are various cases, so please take a look.

This is a collection of analysis examples including model analysis of railway vehicles, sloshing analysis of ships, airflow analysis within 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 please contact us if you are interested in any specific analysis case.

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Introduction to multiphysics fluid analysis software!

Introduction to multiphysics fluid analysis software!

You can perform everything from geometry creation using CAD functions to evaluation of analysis results in one package!

"Simcenter STAR-CCM+" is a general-purpose thermal fluid analysis software that allows you to manage data in a single file. Since it is an integrated environment, automating work processes such as running calculations and evaluating results is easy. With its rich set of physical models and functions, it can analyze various phenomena in a complex manner. 【Features】 ■ Integrated environment ■ Automatable workflow ■ Flexible and highly robust modeling capabilities ■ Comprehensive multiphysics ■ Abundant physical models *For more details, please download the PDF or feel free to contact us.

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[Analysis Case] Analysis of the Stray Losses in Power Transformers

[Analysis Case] Analysis of the Stray Losses in Power Transformers

Analyze the stray load loss under the condition of the presence or absence of leakage flux blocking components in the transcoil!

We would like to introduce the "Analysis of Power Transformer Leakage Loss" conducted by our company. The analysis mode is frequency response analysis (Time Harmonic), and the rated power of the power transformer is 100 MVA. The input frequency is 50 Hz/AC. As a result of the analysis, it was found that the leakage magnetic flux generated from the transformer coil is being significantly and widely collected at the shunt wall. 【Analysis Conditions】 ■ Analysis Mode: Frequency Response Analysis (Time Harmonic) ■ Power Transformer Rating: 100 MVA ■ Input Frequency: 50 Hz/AC ■ Shunt Wall (Flux Collector): Magnetic Material ■ Frame Material, Tank Material: Carbon Steel *Details of the case can be viewed through the related links. For more information, please feel free to contact us.

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Analysis of the acoustic characteristics of truck cabins.

Analysis of the acoustic characteristics of truck cabins.

A case study of modeling the vehicle body structure and the acoustic space inside the cabin, followed by coupled frequency response analysis.

We would like to introduce our analysis of "Cabin Acoustic Characteristics of Tracks Using Acoustic Coupled Analysis Function." In recent years, considering low-noise environments has become very important. It is effective to use finite element method analysis to understand the acoustic characteristics of the cabin at the design stage and to reduce noise transmission to the driver through structural considerations. In this case study, we utilized the NX Nastran structural-acoustic coupled analysis function to model the vehicle body structure and the acoustic space within the cabin, conducting a coupled frequency response analysis to determine the acoustic transmission characteristics from the body mount points to the driver's ear position. 【Case Overview】 ■ Function Used: NX Nastran Structural-Acoustic Coupled Analysis Function ■ Analysis Content - Model the vehicle body structure and the acoustic space within the cabin - Conduct coupled frequency response analysis - Determine the acoustic transmission characteristics from the body mount points to the driver's ear position *Detailed information about the case can be viewed through the related links. For more details, please feel free to contact us.

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[Case Study] Thermal Fluid Analysis of a Muffler

[Case Study] Thermal Fluid Analysis of a Muffler

Introducing thermal fluid analysis that combines "Femap Thermal" and "Femap Flow"!

We would like to introduce the "Thermal Fluid Analysis of Mufflers" conducted by our company. By combining "Femap Thermal" and "Femap Flow," we calculated the flow of exhaust gases within the muffler and the temperature distribution of the muffler due to high-temperature exhaust. We performed thermal fluid analysis targeting the muffler, determining 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, confirming that we could obtain the parameters necessary for design. 【Case Overview】 ■ Products Used ・Femap Thermal ・Femap Flow ■ Analysis Content ・Thermal fluid analysis targeting the muffler *Detailed information about the case can be viewed through the related links. For more information, please feel free to contact us.

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[Analysis Case] Nonlinear Transient Analysis of Brake Rotors

[Analysis Case] Nonlinear Transient Analysis of Brake Rotors

Introducing the excessive stress analysis of automotive disc brake rotating rotors!

We would like to introduce the "Nonlinear Transient Analysis of Brake Rotors" conducted by our company. The coupling of thermal and structural analysis is necessary due to the heat transfer that occurs when the rotating rotor and the pad come into contact. Friction generates heat, leading to uneven thermal expansion and resulting in stress. In this case, we completely constrained the nodes around the holes of the rotating rotor and performed thermal stress analysis by applying heat flux and heat transfer coefficients to the inner and outer surfaces of the rotating rotor, as well as heat transfer coefficients to the surfaces of the fins and hats. [Analysis Overview] - Completely constrained the nodes around the holes of the rotating rotor - Applied heat flux and heat transfer coefficients to the inner and outer surfaces of the rotating rotor, as well as heat transfer coefficients to the surfaces of the fins and hats *For detailed information about this case, please refer to the related links. Feel free to contact us for more details.

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[Example] Control system analysis using nonlinear transient analysis

[Example] Control system analysis using nonlinear transient analysis

We analyzed the motion of a 1-meter aluminum rod used as an inverted pendulum after applying an impact to its tip.

We will introduce a case study of control system analysis using nonlinear transient analysis with NX Nastran.

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