Intelligent & Meaningful Noise/Vibration Testing For ...Fact: Meaningful Noise/Vibration Testing at...
Transcript of Intelligent & Meaningful Noise/Vibration Testing For ...Fact: Meaningful Noise/Vibration Testing at...
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Intelligent & Meaningful Noise/Vibration Testing For Powertrain Product Quality Assessment
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Fact: Meaningful Noise/Vibration Testing at the End-of-Line (EOL)
Can Save Your Organisation Money. End-of-Message
A few minutes of your time watching this presentation will show you how our NVH technology can empower your manufacturing plant
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First, let’s look at the product types tested: Transmissions manual, automatic, auto-shifted manual, CVT, passenger/truck & bus
Transaxles manual, automatic
Transfer Cases & Power Take-Off Units (PTUs)
Axles Independently-Suspended, full-beam, with/without tubes/drive-shafts
Gear-Sets Ring & pinion, spiral bevel, parallel axis
Power-Steering Systems
Hydraulic, electro-hydraulic, electric
Engines “hot” and “cold”, end-of-line, audit,
durability, R&D
Motors, Compressors, Fans
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OK, we can hear you saying,
“I can buy an NVH system from one of tens of suppliers, and my machine builder can even embed
a system for me. Why would I choose ABD?”
Experience – we have over 50 man-years experience in designing, developing, deploying & supporting
systems worldwide
Here are some of the reasons...
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And … Know-How – we are NVH-engineers who understand your
products and the manufacturing challenges involved
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… as well as
Track Record – we have a history of successful installations dating back to 1986, where “successful” means:
• creation of objective results that correlate with objective and subjective assessments in-vehicle
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In-vehicle (Subjective) Assessment
Test
Sta
nd
(O
bje
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Assessm
en
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We Are Independent – we integrate our systems with any machine builder of your
choice worldwide
You choose the machine and we deliver a standard NVH
result
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And …
We use Commodity Hardware – our systems use worldwide standard data acquisition (“DAQ”) hardware from
4-channels
through to …
16-channels as standard
• fast delivery of spares worldwide • 24-bit sampling accuracy • bandwidth to spare • source in your territory if you prefer
… and we use standard PCs - desktop / industrial
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… our key strengths include:
Variable Speed/Torque Testing
• mimic the way your customer uses your product
combined speed and
torque sweeps ..
… speed sweeps, torque sweeps
you name your test and we’ll:
• automatically learn your requirements
• monitor your test machine consistency, day-in, day-out
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Highly Configurable Software
• Windows™ Vista/XP/2000 software • Windows™ 7 ready • Intuitive tree structure set-up • Easily reconfigured when your testing requirements change
… protect your investment:
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“See What You Hear” Powerful Real-Time Analyses
• utilises your PC’s multiple processing cores
• no requirement for plug-in DSP hardware
• Real-time order-tracks
• Immediate visual indication of pass/fail
• Pinpoint diagnostics for failures
Missing Bearing
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Now let’s watch a typical production test cycle: • Details arrive
Waiting for details of the next product to test...
• Real-time key order track displays (result, acceptance level)
• Speed sweep up, then down in 5th gear
• Followed by speed sweeps in 3rd gear
• and then reverse gear to finish
• a displayed order track fails
• easily interpreted summary test report
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Freeze-frame summaries available before next test
Review test conditions (speeds, torques etc.) for a test stage
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Review an analysis that was conducted in background e.g. ghost-order detection
Or “knock” & “click” analysis locked to each shaft in motion
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Flexibility
Large Library of Parameter (“key feature”) Extraction Methods for Pass/Fail Formulation
• absolute metrics:
• peak level • average level • area under trace
• relative metrics:
• difference from acceptance level
Large relative difference between result and acceptance level
ignored by peak level !
ignored by average level !
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Plus, in-depth analysis/reporting:
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All results in easy to access SQL database:
SQL
NVH Results
Your software Your reports etc.
ABD software
Standard reports
OR
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Small Footprint:
No Requirement for Standalone Equipment Rack
• DAQ-hardware inside PC • PC can be dedicated to NVH or be shared with test stand control
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You can run “core” PLATO for basic analyses, or you can add one of the following sub-products to tailor your application:
We call it “PLATO”
Revkit – knock & click analysis
Stats – on-line SPC, trending etc.
Focus – fault-classification/reporting
Dybal – dynamic balancing
Metkit – pitch-line run-out (PLRO)
Passby – order analysis on the track
Nuren – engine work-cycle mapping 0
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FFT of Overall Ratio
Order
1.51.481.461.441.421.41.381.361.341.321.31.281.261.241.221.21.181.161.141.121.11.081.061.041.0210.980.960.940.920.90.880.860.840.820.80.780.760.740.720.70.680.660.640.620.60.580.560.540.520.5
Rat
io
0.05000000
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0.00000000
... World-leading technology backed by a winning team...
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Successful installations of NVH test & measurement systems worldwide
Over 50 man-years experience NVH systems integrated with new test
machines and retrofitted onto existing machines Extensive network of technical
representatives worldwide