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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.

**Case Summary** ■Product Name: Simcenter Femap with Nastran ■Analysis: Modal Analysis ■Industry: Railways and Shipping Since railway vehicles operate in a coupled manner, it is necessary to analyze the motion characteristics of the entire train when considering the dynamics of the vehicles. To accurately predict the vibrations generated in various parts of the moving vehicles, a vehicle simulation using a FEM model that closely resembles the actual structure, rather than a uniform beam or equivalent plate structure, is required. On the other hand, such analyses heavily depend on the computational environment, model creation, and result display capabilities, necessitating parallel computing solutions and efficient pre/post-processing software. In this example, a vehicle body was created using Simcenter Femap, and a modal analysis of a 10-car train model was conducted using Simcenter Nastran to determine the natural frequencies up to 20 Hz.

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.