Ms. Min Zhou Profile

Min Zhou

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 23 November 2022 Paper

Dynamic characteristics of car body sealing gaps and its influence on pressure fluctuation in high-speed train

Chunjun Chen, Min Zhou, Lu Yang

Proceedings Volume 12302, 123020I (2022) https://doi.org/10.1117/12.2645724

KEYWORDS: Numerical simulations, Protactinium, Mathematical modeling, Computer simulations, 3D modeling, Turbulence, Thermodynamics, Space operations, Sensors, Polonium

Read Abstract +

To explore the influence of dynamic characteristics of sealing gaps on the pressure fluctuation in train during passing through a tunnel, static air tightness test is conducted to calculate the equivalent leakage area of gaps and to investigate the dynamic characteristic with the variation of pressure difference. The dynamic leakage process of gaps when passing through a tunnel is simulated numerically and the impact of gaps on leakage flow and internal pressure is analyzed. It is found that 1) the equivalent leakage area of gaps has nonlinear characteristics with different pressure difference, 2) when a train under operation condition with positive pressure, the air is more likely to flow out through the holes under positive pressure, 3) the external section of the hole is obviously impacted by the incoming flow, and the stress condition is worse than other parts, 4) the maximum leakage flow of dynamic equivalent leakage hole, the one second change rate, the three second change rate and the amplitude of the pressure inside vehicle under the model are equal to 43.33%, 55.73%, 45.62% and 48.60% of the fixed equivalent leakage hole, respectively. This study can provide a reference for the determination of equivalent leakage area of high-speed train and the optimization of sealing technology.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years