New capabilities for more effective data analysis [Read-Only] · © 2016 HBM HBM Prenscia: Business...

© 2016 HBM

HBM Prenscia: Business Document

New Capabilities for More Effective Data Analysis

Kurt MunsonHBM Prenscia

2016 nCode User Group Meeting

© 2016 HBM October 5-6, 2016 www.ncode.com


© 2016 HBM

2nCode Product Range

DATA PROCESSING FOR DURABILITY • Complex analysis to report, simply done• Graphical, interactive & powerful analysis• World leading fatigue analysis capabilities

ACOUSTIC & VIBRATION ANALYSIS• Powerful and simple‐to‐use• Noise and Vibration analyses including rotating

machinery, structural dynamics and human perception

MAXIMIZING ROI ON TEST & DURABILITY• Enables collaboration, data management, and

standardized analyses • Search, query and reporting through secure web access.• Data to decisions

CAE DURABILITY • Fatigue analysis technology for FEA• Process encapsulation• Fast, configurable, and scalable




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• New! Product focused on the needs of acoustics and vibration engineers

• Application on the nCode main menu• Worked example and theory guide• Standard processes• Vibration Manager for vibration test

specifications• Short introduction video at

www.ncode.com/vibesys

New! nCode VibeSys

Customers with GlyphWorks Frequency module automatically get upgraded to VibeSys Base



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• 4 new nCode VibeSys worked examples• Ride Quality Analysis: Calculating Vibration Dose Values

• Frequency Response Analysis

• Modal Parameters estimation for simple structures with lightly coupled modes

• Acoustics: Exposure to Noise

New Worked Examples for nCode VibeSys



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• Access to reliability software introduced with Prenscia Access• Prenscia Access is a unified licensing model that provides annual leased access to both

nCode and ReliaSoft product ranges.

• Customers previously using nCode CDS are automatically upgraded to Prenscia Access, which enables the use of ReliaSoft products such as Weibull++ and Xfmea.

• ReliaSoft provides a comprehensive range of reliability engineering software tools. For more info on these products see reliasoft.com

New! Prenscia Access

Number of UnitsWeibull++ 150ALTA PRO Edition 750BlockSim 700Xfmea 300RCM++ 600RGA 400DOE++ 100MPC Plus Edition 950RENO 200Lambda Predict (All Modules) 600RBI 1,500



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• New licensing manager adopted• Starting with version 12, nCode software licenses will be managed using LM‐X License

Manager

• New license administration tool

• Increased security

• Improved CDS usage reporting

Licensing Manager in nCode 12



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• Getting good reliable time series data is still a challenge.

• Wavelet Denoising• Uses wavelet decomposition to remove “noise”

• Remove the Gaussian noise from a signal

• Transient noise analysis, e.g. door slam

• Kalman Filter • An example of machine learning

• Removes noise by using a physics model that predicts, given the current point, where the next point will be.

• Example: GPS data cleaning built into the GPS Processing glyph

• New worked example #26 ‐ Data Cleaning with the KalmanFilter Glyph

Data Cleaning



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FFT analysis• Is it periodic?• …by looking for patterns in the time domain.

Cepstrum analysis• Is it harmonic?• …by looking for patterns in the frequency

domain.

• Used as machine diagnostics to detect faults in rotating machinery…

• ...as well as other applications such as echo detection and removal.

Cepstrum analysis in the frequency spectrum glyph



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• This glyph performs a Stationarity Test on time series data.

• Currently has the Kolmogorov‐Smirnov (KS) option.

• This test is a non‐parametric test of the equality of two probability distributions (PDFs).

• By comparing the PDFs of two data segments, it is used to determine statistically whether they both come from the same population.

Stationarity Test glyph



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• The time signal is divided into a number of shorter segments and the PDF of each segment is compared with the PDF of the entire signal.

• Segments which deviate significantly from the overall signal are clearly identifiable in the output.

• Stationarity is required for vibration fatigue analysis and other vibration analysis processes.

Stationarity Test glyph



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• The Hilbert Transform is used to create either the envelope of a time signal, or the frequency between adjacent points as a train of pulses.

• Use of Hilbert’s envelope:• Determine the damping or decay rate at resonances, from the impulse response function

• Estimate propagation time, from the cross correlation function

• Diagnose bearing faults

• Use of Hilbert’s frequency:• Calculate frequency vs. time signal

Hilbert transform glyph



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• XY Display glyph• Metadata limits for the x‐axis can now be defined on a per channel basis to auto zoom to

different section of overlaid lines.

• The number of x‐axes on an overlay plot can now be user defined. The user can select which channels use which axis and the selection is indicated on the legend.

• Waterfall Display glyph• Annotations like text and arrows can now be added to waterfall plots.

• nCode Viewer• When showing an XY Display, the viewer can now optionally display the full legend as a

table below the plot area.

• It is now possible to save and load configuration files to control the setup of the various displays (requires a GlyphWorks license to be available).

Display improvements



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• Integration and differentiation glyphs• Time domain based integration/differentiation (or double) can now be carried out in the

frequency domain based on Histogram data.

• For example, convert an acceleration spectrum to velocity or displacement.

• Materials Input glyph• This glyph now supports any defined material type for the option

OutputType=MetaDataOnly, which includes custom materials.

• MATLAB Scripting glyph• This glyph now supports complex frequency input and output data

• Also supports version 2015a of MATLAB.

• UnitsConversion glyph• When using Histogram data, a new option has been added that allows conversion

between different spectrum types

• For example, convert a frequency spectrum from g2/Hz to (m/sec2)2/Hz

Other Enhancements



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• Performance improvements• Save for batch for user form data

• Improved XYDisplay zooming

• Other• Per channel X and Y Cursors with Metadata support

• Improved file format plugin

• Pick function button added to MC and Metadata calculator glyphs

• Improvements to Automation’s TestManager and TestBuilder

Other Enhancements



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Support added for….• RPC floating point (write)• inTest CSV• ACRA PCAP• MDF4.1• Binary UFF• Dewesoft DXD• ACRA PCAP• ADAMS/CAR REQ

• Includes using the .NAM file for channel naming

File Formats



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Key Features:• Experimental Modal Analysis identifies modes

of vibration and extract modal parameters

• Provides a regenerated FRF to compare with the measured one and assess the quality of the modal parameters extraction.

• Corrects for residual modes outside the frequency band of interest for a more accurate curve fit.

• Operating Deflection Shapes to visualise the vibration patterns of a structure

• Flexible inputs such as FRF to animate mode shapes or time domain signals to display operating displacements.

Product Overview:Modal Analysis is a specialized product option within nCode VibeSys that provides the ability for engineers to answer questions such as:

• What are the modal frequencies?

• What is the mode shape at a specific frequency?

• What are the modal damping ratios?

• How good is my modal FE simulation compared to modal tests?

Modal Analysis Product Option



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Key Benefits:• Enhance FE modelling by providing reliable damping ratios • Validate FE results by comparing modal frequencies and mode shapes with the

experimental tests. • Rapidly compare different designs in terms of their dynamic properties• Troubleshoot noise and vibration problems• Perform Structural Health Monitoring by tracking changes in modal parameters

due to damage.

Modal Analysis Product Option



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• Also known as curve fitting or modal parameter estimation.• The measured FRF is basically broken down into the principal components that

make up the measured data – into many Single Degree of Freedom (SDOF) systems

• Results are: modal frequencies fi, damping ratios ξi, and mode shapes

Modal Analysis: concepts

f1, ξ1

f2, ξ2

f3, ξ3

f4, ξ4



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The EMA glyph expects Frequency Response Functions in :

• Gain

• Phase

Analysis properties include:• Frequency range

• List of natural frequencies

• Whether to account for residual modes

Results are: • The regenerated FRFs in Gain

and Phase

• A modal table containing the damping ratios

Experimental Modal Analysis glyph

FRF regenerated with residuals

FRF regenerated w/o residuals



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20Operating Deflection Shapes glyph

Visualize vibration patterns in a structure.The ODS glyph expects :• A geometry

• UNV, BDF/DAT, INP,

• FE results files

• Nodal Displacements • Time series

• FRF Spectra

• Modal Table (from EMA)

The mapping between nodes and measurements can be done via: • The ODS Mapping Editor

• A text file

• Metadata #DOFIdentification.Node# and #DOFIdentification.Direction#



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• Modal Analysis Enhancements• Improvements to the Operational Deflection Shapes display

• New experimental modal analysis methods

• Acoustics• Sound Quality Glyph

• Loudness, Sharpness, Articulation index

• Orbit plot

• Excel input glyph in Linux• Move to Python 2.7.12• Display improvements

• Campbell plot

• Waterfall display

• XYDisplay

nCode Version 13

22



© 2016 HBM


23Operating Deflection Shapes glyph

• Animate a complex model, not just a wireframe

• Select modes to display from a drop down list

• Background un‐deformed shape



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• Automated selection of modal frequencies

• New curve fitting method to deal with close‐coupled modes

• Channel selection property

Extension to the Experimental Modal Analysis glyph



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• Psycho‐Acoustic Metrics• Sound quality: metrics such as Loudness,

Sharpness explain how sounds are perceived by the human ear

• Speech Metrics: Articulation Index

Benefit for end user: increase chances of consumer adoption

• Orbit plot ‐ Rotating Machinery• Measure x and y displacement of a rotating

shaft, and plot total displacement vs. angle of rotation

• Check the shaft deflection stays within limits and diagnose faults

• Some failure modes in turbomachines have recognizable plot shapes

Benefit: Avoid failures during service and minimise maintenance downtime

More Acoustic Analysis



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• XYDisplay• Creation of channel based cursors when in overlay mode

• Horizontal scrollbar in the channel list of the Channel Selection property page

• Campbell plot• Now allows up to 32 mode lines

• Waterfall display• Z limits truncates the plot in order to more clearly show peaks

Display improvements



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• Mapping now provided by the new MapQuest Static map• Requires free registration at https://developer.mapquest.com• Patch available for nCode 12.1 available in mid‐late October 2016

GPS Display mapping improvements



New capabilities for more effective data analysis [Read-Only] · © 2016 HBM HBM Prenscia: Business...

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Transcript of New capabilities for more effective data analysis [Read-Only] · © 2016 HBM HBM Prenscia: Business...