scholarly journals Numerical simulation of train dynamics in real time mode.

2015 ◽  
Vol 2015 (2) ◽  
pp. 123-126 ◽  
Author(s):  
Владислав Языков ◽  
Vladislav Yazykov
Keyword(s):  
Fluid Dynamics ◽  
Numerical Simulation ◽  
Real Time ◽  
Driving Simulator ◽  
Multibody System ◽  
Complex Problem ◽  
Time Simulation ◽  
Adequate Accuracy ◽  
Train Dynamics ◽  
Universal Mechanism

Numerical simulation of train dynamics is a complex problem. It requires the application of different fields of mechanics such as multibody system dynamics, contact mechanics, fluid dynamics for finding solutions of adequate accuracy. The approach for the real time simulation of train dynamics by using the program package “Universal Mechanism” and its application to the development of train driving simulator are presented.

scholarly journals Decomposition-Assisted Computational Technique Based on Surrogate Modeling for Real-Time Simulations

Complexity ◽  
2017 ◽  
Vol 2017 ◽  
pp. 1-14 ◽  
Author(s):  
Nariman Fouladinejad ◽  
Nima Fouladinejad ◽  
Mohamad Kasim Abdul Jalil ◽  
Jamaludin Mohd Taib
Keyword(s):  
Real Time ◽  
Driving Simulator ◽  
Low Cost ◽  
Computational Cost ◽  
Surrogate Modeling ◽  
Computational Technique ◽  
Model Decomposition ◽  
Real Time Simulation ◽  
Time Simulation ◽  
Simulation Systems

The development of complex simulation systems is extremely costly as it requires high computational capability and expensive hardware. As cost is one of the main issues in developing simulation components, achieving real-time simulation is challenging and it often leads to intensive computational burdens. Overcoming the computational burden in a multidisciplinary simulation system that has several subsystems is essential in producing inexpensive real-time simulation. In this paper, a surrogate-based computational framework was proposed to reduce the computational cost in a high-dimensional model while maintaining accurate simulation results. Several well-known metamodeling techniques were used in creating a global surrogate model. Decomposition approaches were also used to simplify the complexities of the system and to guide the surrogate modeling processes. In addition, a case study was provided to validate the proposed approach. A surrogate-based vehicle dynamic model (SBVDM) was developed to reduce computational delay in a real-time driving simulator. The results showed that the developed surrogate-based model was able to significantly reduce the computing costs, unlike the expensive computational model. The response time in surrogate-based simulation was considerably faster than the conventional model. Therefore, the proposed framework can be used in developing low-cost simulation systems while yielding high fidelity and fast computational output.

Real Time Simulation of a VCM Plant

1997 ◽  
Vol 21 (1-2) ◽  
pp. S1111-S1115
Author(s):  
P Lundstrøm
Keyword(s):  
Real Time ◽  
Real Time Simulation ◽  
Time Simulation

Low-Cost High-Speed Techniques for Real-Time Simulation of Power Electronic Systems

2007 ◽  
Author(s):  
R. E. Crosbie ◽  
J. J. Zenor ◽  
R. Bednar ◽  
D. Word ◽  
N. G. Hingorani
Keyword(s):  
Real Time ◽  
High Speed ◽  
Low Cost ◽  
Electronic Systems ◽  
Power Electronic ◽  
Real Time Simulation ◽  
Time Simulation
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