Simulation Design Method of On-board Braking Resistor for Rail Vehicles
A braking resistor, simulation design technology, applied in the direction of calculation, electrical digital data processing, special data processing applications, etc., to achieve the effect of simple structure, significant heat dissipation effect, and enhanced fluid-structure coupling effect
Active Publication Date: 2016-08-24
SHENZHEN FULINTECH SCI & TECH
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[0004] In view of the deficiencies in the above-mentioned prior art, the purpose of the present invention is to provide a simulation design method for rail vehicle on-board braking resistors to solve the problems faced in the prior art
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[0020] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.
[0021] Such as figure 1 Shown, the simulation design method of the on-board braking resistor of the rail vehicle of the present embodiment, it comprises the following steps:
[0022] S1, using finite element analysis software (such as ANSYS) to establish the fluid-solid coupling model of the on-board braking resistor;
[0023] S2, using finite element pre-processing software (such as ICEM CFD) to perform finite element mesh division on the fluid-structure interaction model;
[0024] S3, using finite element analysis software to set the inlet boundary conditions and solution parameters of the fluid-structure interaction model;
[0025] S4, use the finite element analysis software to solve the simulation numerical simulation, so as to complete the s...
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The invention relates to the technical field of rail transit devices and the design of the rail transit devices, in particular to a simulation design method of a vehicle-mounted brake resistor for railway vehicles, a structure optimization method of the vehicle-mounted brake resistor based on the simulation design method, and an optimized structure of the vehicle-mounted brake resistor based on the above methods. The simulation design method includes the following steps that S1, a fluid-solid coupled model of the vehicle-mounted brake resistor is established through software of finite element analysis; S2, finite element mesh division of the fluid-solid coupled model is carried out by software of finite element pre-processing; S3, inlet boundary conditions, solution parameters and convergent iteration step numbers of the fluid-solid coupled model are set by using software of finite element analysis; S4, a simulation numerical modeling solution is carried out by using the software of finite element analysis, and therefore a simulation result in the cooling process of the vehicle-mounted brake resistor is completed. The simulation design method provides an important theoretical basis for the optimization design of the brake resistor of the railway vehicles. The design method has positive practical significance in the development of the vehicle-mounted brake resistor for the railway vehicles.
Description
technical field [0001] The invention relates to the technical field of rail transit devices and design thereof, in particular to a simulation design method for rail vehicle vehicle-mounted braking resistors. Background technique [0002] At present, urban rail transit vehicles mostly adopt the method of combining regenerative braking and resistance braking, that is, during the train braking process, the train motor is transformed into a generator to convert the kinetic energy of the train into electrical energy, which is fed back to the power grid through the circuit, and the power supply in the supply interval Used by other rail vehicles to complete the regenerative braking of the train. In the design of urban rail transit, for safety reasons, the grid voltage has set a limit value, that is, the highest voltage is 1800V, which causes the regenerative electric energy of the train braking to not be completely fed back to the grid; at this time, the on-board resistance of rail...
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IPC IPC(8): G06F17/50
Inventor 杨俭李联军
Owner SHENZHEN FULINTECH SCI & TECH