Numerical analysis of three-dimensional flexural vibration of railway vehicle car body

2006 ◽  
Vol 44 (sup1) ◽  
pp. 272-285 ◽  
Author(s):  
T. Tomioka ◽  
T. Takigami ◽  
Y. Suzuki
Keyword(s):  
Numerical Analysis ◽  
Three Dimensional ◽  
Flexural Vibration ◽  
Railway Vehicle ◽  
Car Body

Analysis of Resonant Vibration of Railway Vehicle

2015 ◽  
Vol 752-753 ◽  
pp. 632-635
Author(s):  
Dao Gong ◽  
Wen Jing Sun
Keyword(s):  
Natural Vibration ◽  
Flexural Vibration ◽  
Railway Vehicle ◽  
Resonant Vibration ◽  
Vehicle Dynamic ◽  
Running Speed ◽  
Car Body ◽  
Fundamental Reason ◽  
Vehicle Dynamic Model ◽  
Geometric Filtering

A fully equipped railway vehicle dynamic model which considers the car body flexibility is established to analyze the fundamental reason of car body flexural resonance. Results show that it is the geometric filtering phenomenon rather than the natural vibration of bogie bounce that causes the car body resonant flexural vibration. The higher the vehicle running speed, the higher the first vertical bending frequency should be required.

Three dimensional numerical analysis of heat transfer during spray quenching of 22MnB5 steel with a single nozzle

2020 ◽  
Author(s):  
Emre Bulut ◽  
Gökhan Sevilgen ◽  
Ferdi Eşiyok ◽  
Ferruh Öztürk ◽  
Tuğçe Turan Abi
Keyword(s):  
Heat Transfer ◽  
Numerical Analysis ◽  
Three Dimensional ◽  
22Mnb5 Steel

Optimization of the Navy’s three-dimensional mine impact burial prediction simulation model, Impact35, using high-order numerical methods

2021 ◽  
pp. 154851292110286
Author(s):  
Athanasios Donas ◽  
Ioannis Famelis ◽  
Peter C Chu ◽  
George Galanis
Keyword(s):  
Numerical Analysis ◽  
Numerical Methods ◽  
Prediction Model ◽  
Simulation Model ◽  
Three Dimensional ◽  
Simulation System ◽  
High Order ◽  
Alternative Methodology ◽  
Runge Kutta ◽  
Fifth Order

The aim of this paper is to present an application of high-order numerical analysis methods to a simulation system that models the movement of a cylindrical-shaped object (mine, projectile, etc.) in a marine environment and in general in fluids with important applications in Naval operations. More specifically, an alternative methodology is proposed for the dynamics of the Navy’s three-dimensional mine impact burial prediction model, Impact35/vortex, based on the Dormand–Prince Runge–Kutta fifth-order and the singly diagonally implicit Runge–Kutta fifth-order methods. The main aim is to improve the time efficiency of the system, while keeping the deviation levels of the final results, derived from the standard and the proposed methodology, low.

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