Prof. Weiwei Zhang Profile

Prof. Weiwei Zhang

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 | 5 June 2024 Paper

Detection of the rail bolt loosening based on nonlinear ultrasonic

Hongzhao Li, Mengfei Cheng, Junfeng Chen, Jing Wu, Weiwei Zhang, Hongwei Ma

Proceedings Volume 13163, 1316371 (2024) https://doi.org/10.1117/12.3030137

KEYWORDS: Modulation, Ultrasonics, Vibration, Nondestructive evaluation, Inspection, Engineering

Read Abstract +

The rail bolt joint is an important component of railway tracks, which ensure operational safety and vehicle comfort. However, existing non-destructive testing methods fail to accurately assess the severity of the rail bolt joint looseness. A detection method based on Vibration-acoustic modulation was proposed to detect early loosening of the rail bolt joint. First, A single degree of freedom model was established based on the relationship between bolt torque and equivalent stiffness. Then, the looseness index was constructed using the fundamental wave and sideband amplitude. Finally, a rail bolt loosening detection experiment was carried out. Experimental studies showed that the degree of bolt loosening had a significant effect on the frequency amplitude characteristics of the modulating signal. Moreover, the bolt loosening index exhibited staged changed corresponding to increases in bolt prestress, which can be used to identify early loosening of the rail bolt joint.

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