DATS Options - Hoskin Scientifique€¦ · NVH / Refinement Waterfalls – ... Sharpness Roughness...
Transcript of DATS Options - Hoskin Scientifique€¦ · NVH / Refinement Waterfalls – ... Sharpness Roughness...
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DATS Options
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DATS – THE A TO Z OF SIGNAL PROCESSING
NVH / Refinement
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DATS – THE A TO Z OF SIGNAL PROCESSING
NVH / Refinement
Waterfalls– Generate waterfalls from tacho or speed signal– Average waterfalls
Orders– Calculate orders from waterfall
Sound Quality– Metrics including loudness (Zwicker & Stevens), AI, Spectral
Balance and so on
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DATS – THE A TO Z OF SIGNAL PROCESSING
Rotating Machinery
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Rotating Machinery
Time sampled data Angular sampled data Waterfalls Order extraction Torsional vibration
– Twist– Angular Vibration
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DATS – THE A TO Z OF SIGNAL PROCESSING
Fatigue Analysis
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Fatigue Analysis
Rainflow Counting Peak and Trough Count Stress Life Prediction Strain Life Prediction Weld Life Failure Probability S-N Fatigue Curve Generation Materials Database with Editor Histograms
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DATS – THE A TO Z OF SIGNAL PROCESSING
Structural Animation
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DATS – THE A TO Z OF SIGNAL PROCESSING
Time and frequency Animation Time and frequency sweep for Animation Model Editor Import of model Data (FE, CAD) Export of Animation (avi files)
Structural Animation
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DATS – THE A TO Z OF SIGNAL PROCESSING
Multiplane Balancing
Multi plane balance for rotating shaft balancing.
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Multiplane Balancing
Multi tachometer support Split weight calculation Specified or zero imbalance Bias factor selection Single Value Decomposition based primary
solution
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DATS – THE A TO Z OF SIGNAL PROCESSING
Hammer Impact Analysis
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Hammer Impact Analysis
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DATS – THE A TO Z OF SIGNAL PROCESSING
Hammer Impact Analysis
Calculation of...– Coherence, Inertance, Mobility, Receptance, Apparent Mass,
Impedance, Obstructance
Automatic overload exclusion Exclude double hits Time histories (excitation & response) Transfer functions (H1 & H2)
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DATS – THE A TO Z OF SIGNAL PROCESSING
Sound Quality Audio Replay
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Sound Quality Audio Replay
Play– Plays DATS signals or WAV files– Play sections (“one shot” or repeat)
Modify– Filter signals to identify problems or compare– Filter frequencies or orders (pass or reject)– Add speed profile to filter
Save– Save results as DATS signals, WAV or WMA
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DATS – THE A TO Z OF SIGNAL PROCESSING
Sound Quality Audio Replay
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DATS – THE A TO Z OF SIGNAL PROCESSING
Source Contribution
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DATS – THE A TO Z OF SIGNAL PROCESSING
Source Contribution
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DATS – THE A TO Z OF SIGNAL PROCESSING
Transfer Path Analysis
Known as ‘Source Path Analysis’
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DATS – THE A TO Z OF SIGNAL PROCESSING
Human Response Biodynamics
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Human Response Biodynamics
ISO8041 Weightings Building Vibration Assessment Weighting Max Transient Vibration Value (MTVV) Motion Sickness Dose Value (MSDV) Root Mean Quad (RMQ) Measure Vibration Dose Value (VDV & eVDV) Vibration Quality Measure Vibration (BS6841) Weighting Vibration (ISO2631) Weighting Generate EM spectrum Generate ISO time history from EM Spectrum EEC & ISO10326 standards Compute averaged and corrected SEAT factors
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DATS – THE A TO Z OF SIGNAL PROCESSING
Time-Frequency Analysis
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Time-Frequency Analysis
Wavelet Analysis Born-Jordan Wigner Ville Zhao Atlas Marks
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Crash Biomechanics
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Crash Biomechanics
Form Resultant (x, y,z) Digital Filtering Compliant with SAEJ211
– CFC60, CFC180, CFC600, CFC1000
FIR100 digital filtering Head Injury Criteria (HIC) Chest Severity Index (CSI) 3mm Exceedance Level (Thorax Data) Thoracic Trauma Index (TTI) Viscous Criterion (VC)
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DATS – THE A TO Z OF SIGNAL PROCESSING
Modal Analysis
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Modal Analysis
Parametric identification of – Modal Frequencies– Damping Factors – Modal Amplitudes
Frequency and Time Domain– Half-power estimates– SDOF, MSDOF, MDOF– ERADC
FRF synthesis from Parameters Mode Shape Animation
(using Structural Animation option)
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Acoustics
Included features• Third Octave• Auto Spectral Density• Sound Pressure Level• Overall dB• Spectral Weighting - A,B,C,D
Optional features• Psychoacoustics• Nth Octave• Sound Level Meter• LEQ• Absorption, Reflection & Reverberation• Two Microphone Impedance Tube• 1/N Filters & Room Acoustics
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DATS – THE A TO Z OF SIGNAL PROCESSING
Psychoacoustics
Loudness Sharpness Roughness Fluctuation Strength Specific Prominence
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DATS – THE A TO Z OF SIGNAL PROCESSING
Sound Mapping
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Sound Mapping
Sound Pressure Mapping Uses grid array of microphones Photographs of test piece can be used for graphical overlay later
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DATS – THE A TO Z OF SIGNAL PROCESSING
Sound Mapping
Sound Intensity Mapping Uses sound intensity probe Photographs of test piece can be used for graphical overlay later
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Sound Mapping
Sound Mapping Data Display Contor map Color map Image overlay Frequency selection from narrow band spectrum or third octave
spectrum View sound level values for each microphone at any frequency
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Sound Mapping
MeasurementPointSelection
Color map & contorsoverlaid with imageof engine
Frequency selectionfrom 1/3 octavespectrum
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DATS – THE A TO Z OF SIGNAL PROCESSING
Sound Mapping
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