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2. m+p international’s Pass-by-Noise System in Operation at Cooper TireCooper Tire operates several test tracks across the USA to aid their advanced noise and vibration design and development. They also provide services to outside companies in key areas such as pass-by-noise testing. Cooper Tire chose m+p international’s unique GPS based Pass-by-Noise (PBN) solution.Gary Welch, operator of the m+p Pass-by-noise system at Cooper TireWatch the system in operation in this short movie, a simple space bar arms the system for each run, audible tone informs the operator system is ready so he can focus on the in-vehicle speed display as he approaches the noise pad, entry trigger and exit trigger tones tell the operator when exactly the entry and exit happen, and a complete display indicates all parameters needed to accept or reject the run. Instantly re-armed and ready to capture more data along with the GPS ability to automatically sense reverse runs allows constant driving with no downtime to look into the vehicle. The operator in the movie, Gary Welch, says: “The simple operation and quick turnaround ability enables us to get more testing done more quickly than any other system.” Test Track director, Carson Miller explains, “We looked at every system on the market for our application- m+p’s GPS triggering, customization and single button export to our result format was unmatched. Their superb technical support was the key to getting us up and running quickly as well as adding new features to streamline our process.”This single person operated system is the only currently available PBN solution which does not require the old optical triggers and radar units. Optical triggers and radar prevents flexible setup and have many mechanical limitations. Often various size vehicles and different tests require moving the trigger point. m+p international’s PBN solution allows this in seconds and also enable audible tones and indicators to help the operator adjust the throttle position for the on and off points - allowing quick tuning and repeatable results.The latest ISO 362 standard Reg. 51 which adds significant new measurement requirements over and above the old procedures has been implemented along side the existing 1998 standard. Software customization allows identification of the gear and run to aid the complex Reg. 51 measurement gathering. This results in getting more testing completed and quickly gathering both the 1998 method and the latest method as is required until the new method is fully adopted. This advanced solution allows Cooper Tire to maintain their existing large turnaround distances - while enabling immediate results processing and troubleshooting.Other custom features include easy calibration and storage of results to provide certification as per the new standard, gathering track surface temperature along with all weather variables for each run, and simple single button export into existing Microsoft Excel results worksheets, or to standard results printouts with provided customizable templates. The system - based on our SO Analyzer software for dynamic signal analysis - consists of two complete data acquisition systems which can be used on other projects together or independently, thus multiplying the applications for this unique solution to your other NVH, rotating, modal, acoustics testing.Courtesy of Cooper Tire, Carson Miller and Gary Welch. |
发表于 2010-1-6 12:42
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