Method for determining intermittent force of sound barrier in rapid transit railway and application

A technology for high-speed railways and determination methods, which is applied to noise absorption devices and buildings, and can solve problems such as the inability to accurately determine the pulsation force of sound barriers in high-speed railways

Inactive Publication Date: 2010-12-08
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

The technical problem solved by the present invention is to provide a method for determining the pulsation force of the sound barrier in the high-speed ra

Method used

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Example Embodiment

The technical solution of the present invention will be further described below in conjunction with specific embodiments.

As shown in Figure 1, the specific implementation of the present invention is to provide a method for determining the pulse force of a sound barrier in a high-speed railway, which includes the following steps:

Step 100: Use relevant parameters, that is, collect the distance from the center line of the high-speed railway track to the sound barrier, and collect the train speed.

Step 200: Determine the pulsation force of the sound barrier: the pulsation force of the sound barrier in the high-speed railway

Among them: P represents the pulse force of the sound barrier; v represents the train speed; D represents the distance from the center line of the high-speed railway track to the sound barrier.

In the present invention, the pulsation force of the sound barrier in the high-speed railway is: P represents the pulsation force of the sound barrier; v represents th...

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Abstract

The invention relates to a method for determining an intermittent force of a sound barrier in a rapid transit railway, which comprises the following steps of: adopting relevant parameters: acquiring the distance from the center line of rapid transit railway rails to the sound barrier, acquiring train speed; and determining the intermittent force of the sound barrier: in the intermittent force of the sound barrier in the rapid transit railway, P represents the intermittent force of the sound barrier, v represents the train speed, and D represents the distance from the center line of the rapid transit railway rails to the sound barrier. In the method for determining the intermittent force of the sound barrier in the rapid transit railway and the application, the motion boundary is calculated by adopting a flow field analysis method, constructing the rapid transit railway model and carrying out mixed grid optimization with a movable grid technology for the operating train in the rapid transit railway. The invention can accurately determine the intermittent force of the sound barrier in the rapid transit railway by using the fitting intermittent force of the sound barrier simply and practically.

Description

technical field The invention relates to a method for determining the magnitude of the pulsation force of a sound barrier and an application thereof, in particular to a method for determining the magnitude of the pulsation force of a sound barrier in a high-speed railway and its application. Background technique On October 1, 1964, the world's first high-speed train slowly started at Tokyo Station in Japan, and gradually accelerated to 210km / h, speeding away towards the terminal station. The successful operation of the Shinkansen completely shattered the "railway in the sunset" The pessimistic argument of the "era", the world's railways have since entered the high-speed era. Since then, countries all over the world have learned from Japan's experience and successively built their own high-speed railways, adopting and creating many advanced technologies. Since 1996, my country's five major speed increases have brought about fundamental changes in railways and accelerated the...

Claims

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Application Information

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IPC IPC(8): E01F8/00
Inventor 查晓雄金蕾
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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