Advanced Machine Diagnostics and Condition Monitoring
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1 The Australian Acoustical Society and the Department of Mechanical Engineering, Curtin University, present: Acoustics 2012 Fremantle. Pre-conference workshop on: Advanced Machine Diagnostics and Condition Monitoring Date: Tues-Wed st November Venue: Curtin University (Perth, Western Australia) This two day course on condition monitoring is organised by the Department of Mechanical Engineering, Curtin University. The course, given by Professor Bob Randall of the University of New South Wales, Australia, gives an overview of the most up-to-date techniques in machine condition monitoring and diagnostics by vibration analysis and signal processing. The course on Advanced Machine Diagnostics and Condition Monitoring is intended for researchers and engineers, active in the field of machine design, maintenance, monitoring and diagnostics, who wish to update their knowledge on recent topics in vibration based condition monitoring. No detailed knowledge of the related topics is required; some general background in the field of machine monitoring is however advantageous. The workshop is expected to be of interest to researchers, consultants and engineers supervising condition monitoring technicians. Numbers will be strictly limited. Cost: $ (Student $600.00) Register at Enquires for this Workshop can be sent directly to Please see the programme and location details on the following pages.
2 Day 1. 8:30-8:45 Registration 9:00-10:30 Session 1 Vibration monitoring techniques and applications Permanent vs intermittent monitoring; Introduction to all three phases of condition monitoring, i.e. fault detection, diagnosis and prognosis; Signal classification stationary, slowly varying, transient, deterministic, random, cyclostationary; Transducers and their application areas. Vibration signatures Fault signatures unbalance, misalignment, cracked shaft, oil whirl, hysteresis whirl; faults in gears, bearings, bladed machines, electrical machines, reciprocating machines. 10:30-11:00 Break 11:00-12:00 Session 2 Basic signal processing Frequency analysis Fourier series and Fourier transform; FFT; constant percentage bandwidth (CPB) spectra; linear and logarithmic amplitude and frequency scales; amplitude and power spectra, PSD for stationary random signals, ESD for transients; scaling according to signal type. 12:00-13:00 Lunch 13:00-15:00 Session 3 Demonstration Force and couple unbalance; Influence of coupling type on misalignment effects. Advanced signal processing Hilbert transforms and applications to amplitude and phase demodulation; cepstrum analysis applied to harmonic and sideband families, separation of source and transfer function effects, and detection of echoes. 15:00-15:30 Break 15:30-17:00 Session 4 Advanced signal processing (cont) Time/frequency analysis; cyclostationarity and spectral correlation; order tracking and angular sampling. 17:00 Finish
3 Day 2. 9:00-10:30 Session 5 Gear and Bearing diagnostics Separation of gear and bearing signals; gear diagnostics by synchronous averaging, toothmesh demodulation, cepstrum analysis; bearing diagnostics by envelope analysis. 10:30-11:00 Break 11:00-12:00 Session 6 Bearing signal enhancement Spectral kurtosis, the kurtogram; MED; cepstral prewhitening 12:00-13:00 Lunch 13:00-15:00 Session 7 Demonstration Envelope analysis of typical bearing faults. Bearing diagnostic case histories high, medium and low speed cases 15:00-15:30 Break 15:30-16:30 Session 8 IC engine diagnostics Misfires by torsional vibration cylinder pressure reconstruction time/frequency analysis. 16:30-17:00 Wrap-up Discussion and Questions 17:00 Finish
4 Location: Engineering Studio, 3 rd Floor, Building 204, Curtin University (see map and link below for building location) msa=0&ll= , &spn= , A general map of Curtin University can also be found at
5 Parking: Parking is free of charge only in the student parking areas on Curtin Campus during st Nov. Student parking areas are shown in orange in the following map. Catering: Morning/Afternoon tea and Lunch will be provided to all attendees.
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