구성 모듈
- State of the art Signal processing complies with high standard requirements.
– Needed processing on spectra and waveform, identification, filtering, checking waveform signal, statistics processing
- Rotating machines analysis dedicated
– Vibration analysis & spectrum, frequency analysis
- Acoustic test, Sine vibrations, Random vibrations & Vibroacoustics
– Narrow band 1/3 Octave, harmonic, FFT, PSD, ESD, modal, RRS
- Shock analysis
– SRS, FFT, Fourier spectrum
- Test tailoring module
– Random test spec. define, fatigue & damage spectrum processing
- Thermal analysis
– Real-time monitoring & processing
- Oscilloscope signal
– Manage and processing (FFT)
Analysis Tools
Statistics
- normal distribution
- log-normal distribution
- Gaussian distribution
- histogram
- median distribution
- RMS value of signal
- Poisson distribution
- rainflow-counting method
- skewness
- kurtosis
- Weibull probability density
- probability distribution
- standard deviation
Signal Processing
- discrete Fourier Transform of signal
- FFT(Cooley-Tuckey method)
- spectrum shift
- PSD
- harmonic spectrum
- Hilbert transform
- inverse FFT
- RMS caculation
- sine signal processing
- random signal processing
- acoustric signal processing
- transient signal processing
- waveform synthesis
- partial coherence matrix
- Fourier spectrum
- spectrum conversion : PSD, ESD
- vibration signal processing
- filtering signal
- Time-Frequency analysis
Test Tailoring Tool
- random test Spec. define
- MIL-STD-810-D/E/F and GAM-EG-13, AFNOR X50 -144-1 to 6 leaflets standard
- material and structure characteristics
- fatigue and damage spectrum
- extreme response, maximax spectrum parameters
- fatigue and damage calculation method on DSP
- aeronautic
- transpotation, energy
Acoustic Test
- linear interpolation of spectral band
- frequency diagram
- A,B,C,D,E acoustic filtering
- switching narrow band to wide band spectra
- cumulated acoustic spectrum
- acoustic field transposition model: ARP860, Sutherland
- PSD
- convert dB to Noys
- normalized acoustic spectrum
- RMS spectrum
- global RMS value
- Fourier spectrum
- third of octave spectrum from narrow band
- Tones separation
- engine order conversion
Sine Vibrations
- discrete Fourier Transform of signal
- idendification using Prony method
- synthesis of waveform response from modal characteristics
- sine signal truncation
- harmonic frequency response function
- Fourier spectrum
Random Vibrations
- power spectral density
- energy spectrum density
- Fourier transform
- Fourier spectrum
- transfer function
- random response spectrum
- RMS value of vibration signal
- gaussian distribution
Shock Analysis
- FFT
- inverse FFT
- SRS
- inverse SRS
- Fourier spectrum
- response filter
- compensation of signal of shaker shock
- Pierson criterion
Rotating Machines
- tracks frequencies
- global spectrum
- overall level processing on segmented waveform
- order tracking
- segmentation
- engine rating tachometric signal
- threshold Cambell diagram
- conversion between time segment and rating value
Thermal Testing
- signal calibration
- real-time mornitoring
- alarm tool function
Oscilloscope Signal
- signal processing & management