Product category:
Factory data acquisition
News Release from: Adept Scientific | Subject: DADiSP graphic display data processing software
Edited by the Manufacturingtalk Editorial
Team on 14 August 2003
Vibration analysis software simplifies
development
A software solution makes data conversions easy and stores process data from one day to the next when tracking down and resolving noise and vibration problems during product development.
Allied Signal/Bendix Automotive Systems is a worldwide organisation that designs, develops, and manufactures brake components and complete brake systems for automobiles It is the responsibility of Walt Stringham, project engineer, to track down and resolve noise and vibration problems during the development phase of new products
This article was originally published on Manufacturingtalk on 11 Sep 2008 at 8.00am (UK)
Related stories
Adept supplies spectroscopy software to Protea
Adept Scientific has supplied Protea with Grams spectroscopy software from Thermo Scientific for use in its emissions monitoring and analysis.
Adept enhances Measurement's PCI boards
Adept Scientific has announced the introduction of two digital I/O boards for the PCI Express Bus from Measurement Computing.
To investigate these problems, it is necessary to analyse noise and vibration test data in three different mathematical domains, and to compare the results with analyses from other research departments.
A software solution was needed to make data conversions easy, to store process data from one day to the next, and to be programmable by use of macros for specific situations.
The solution came in the form of DADiSP, graphic display data processing software.
Further reading
Quality monitor gives realtime SPC feedback
NWA Quality Monitor from Adept Scientific enables a factory to standardise workflow procedures, automate data collection, and provide real-time SPC feedback throughout an operation.
Device acts as Ethernet I/0 slave and more
The 'Cube' is flexible and is capable of being deployed as an Ethernet I/O slave, a standalone data logger, a standalone Linux-based PAC or a Modbus slave.
The search for brake problems begins with the recording of a brake assembly from an operational vehicle test.
DADiSP is sometimes used for direct data acquisition: interfacing with analogue-to-digital data acquisition boards to acquire up to 16 channels of data directly.
For ordinary operations tests, however, a digital data acquisition system is used, and data are downloaded to DADiSP.
Somewhere between 70 and 120 revolutions of a rotor assembly take place in a six-to-eight second test recording.
DADiSP is used to sort them out and extract them by means of a macro that Walt wrote himself.
Next, time domain, frequency domain, and order domain analyses are carried out on the extracted data, and hardcopy plots are generated.
Analysis results are compared to the tested vehicle's component characteristics and to data from other divisions.
At this point in the testing cycle, suggestions are made about mechanical modifications that might help produce a quieter or more comfortable brake.
Walt says that before his team started using DADiSP, going from the operations test to the data analysis took up to two weeks.
Three computers were running "round the clock" doing data downloading and conversion.
Now, this procedure takes under an hour.
DADiSP's storage capabilities enables them to compare one day's process data to the next.
Walt says he particularly likes DADiSP's capacity for custom automation.
He has built up a library of application-specific macros that he wrote himself to isolate selected data for analysis.
He also uses DADiSP at conferences during demonstrations.
Because other research divisions at Allied now use DADiSP, they find data-swapping and comparison much easier.
Their engineers can investigate the physical problems causing excessive vibration much faster as a direct result of DADiSP.
DADiSP is supplied and supported in the UK and Ireland by Adept Scientific plc. Request a free brochure from Adept Scientific ...
• Adept Scientific: contact details and other news
• Email this article to a colleague
• Register for the free Manufacturingtalk email newsletter
• Manufacturingtalk Home Page
Search the Pro-Talk network of sites
