Operational Parameters in Acoustic Signature Inspection of Railroad Wheels

Dousis, D.; Finch, R. D.; University of Houston

Advanced Search

Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

Advanced Search
Custom Query

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields

Language:

Dates

Publication Date Range:

to

Document Data

Title:

Document Type:

Library

Collection:

Series:

People

Author:

Clear All

Query Builder

Query box

Clear All

For additional assistance using the Custom Query please check out our Help Page

i

Operational Parameters in Acoustic Signature Inspection of Railroad Wheels

1980-04-01
By Dousis, D. ; Finch, R. D.

[PDF-7.65 MB]

Select the Download button to view the document

This document is over 5mb in size and cannot be previewed

English

Details You May Also Like

Details:

Creators:

Dousis, D. ; Finch, R. D.

Dousis, D. ; Finch, R. D. Less -
Corporate Creators:

University of Houston
Corporate Contributors:

John A. Volpe National Transportation Systems Center (U.S.) ; United States. Federal Railroad Administration. Office of Research and Development

John A. Volpe National Transportation Systems Center (U.S.) ; United States. Federal Railroad Administration. Office of Research and Development Less -
Subject/TRT Terms:

[+]

Acoustic Measuring Instruments Acoustics Acoustic Signature Computer Programs Cracking Finite Element Method Inspection Railroad Facilities Railroad Trains Stresses Structural Analysis Vehicle Components Vehicle Maintenance Wear Wheels
Publication/ Report Number:

FRA/ORD-80/21 ; DOT-TSC-FRA-80-9

FRA/ORD-80/21 ; DOT-TSC-FRA-80-9 Less -
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

United States. Federal Railroad Administration
NTL Classification:

AGR-IMPACTS-Environment;NTL-ENERGY AND ENVIRONMENT-Rail Energy and Environment;NTL-ENERGY AND ENVIRONMENT-ENERGY AND ENVIRONMENT;NTL-RAIL TRANSPORTATION-RAIL TRANSPORTATION;NTL-RAIL TRANSPORTATION-Rail Energy and Environment;
Abstract:

A brief summary is given of some prior studies which established the feasibility of using acoustic signatures for inspection of railroad wheels. The purpose of the present work was to elucidate operational parameters which would be of importance for the development of a prototype system. Experimental and theoretical investigations were conducted to obtain more information on the effects on wheel vibrations of geometrical variations, wear, internal stress etc. Hardware improvements and interfacing were carried out for a wayside installation, in addition to software development for real time data acquisition and processing. Field tests were made to evaluate system performance, to permit follow-up on certain wheels and to obtain tape recordings from a sample of axle sets in service. These tape recordings were used to optimize the data processing software and to attempt to correlate identifiable wheel conditions with characteristics of the acoustic signature. The greatest signature differences were obtained when one of a pair of wheels was cracked. Differential wear was found to be a major cause of differences in the signatures of good wheel pairs. It is claimed that the knowledge gained from this study is sufficient to warrant the installation of a prototype system with a reasonable likelihood of success. Another important finding is that the frequencies of certain resonant modes shift slightly with changes in residual stress.
Format:

PDF
Funding:

DOT-TSC-1187 ; RR031/R0312

DOT-TSC-1187 ; RR031/R0312 Less -
Collection(s):

Volpe Center
Main Document Checksum:

[+]

urn:sha256:007b82fdc79495ffa0bdb561c559117cdf943a6709a0d2b7513f208e638112b6
Download URL:

https://rosap.ntl.bts.gov/view/dot/11451/dot_11451_DS1.pdf
File Type:

No Additional Files

More +

Operational Parameters in Acoustic Signature Inspection of Railroad Wheels

Details:

Supporting Files

You May Also Like