By Dr Wade Smith

Journal articles

Chen B; Smith WA; Cheng Y; Gu F; Chu F; Zhang W; Ball AD, 2025, 'Probability distributions and typical sparsity measures of Hilbert transform-based generalized envelopes and their application to machine condition monitoring', Mechanical Systems and Signal Processing, 224, http://dx.doi.org/10.1016/j.ymssp.2024.112026

Lu R; Antoni J; Randall RB; Borghesani P; Smith WA; Peng Z, 2024, 'Cepstral operational modal analysis for multiple-input systems based on the real cyclic cepstrum', Mechanical Systems and Signal Processing, 218, http://dx.doi.org/10.1016/j.ymssp.2024.111578

Smith WA; Borghesani P; Randall RB; Antoni J; El Badaoui M; Peng Z, 2024, 'High-speed bearing diagnostics: Observations from the Surveillance 8 Safran contest data', Mechanical Systems and Signal Processing, 216, http://dx.doi.org/10.1016/j.ymssp.2024.111484

Peng D; Smith WA; Randall RB; Feng K; Peng Z; Teng W; Liu Y, 2024, 'Iterative improvement in tacholess speed estimation using instantaneous error estimation for machine condition monitoring in variable speed', Mechanical Systems and Signal Processing, 216, http://dx.doi.org/10.1016/j.ymssp.2024.111488

Chin ZY; Borghesani P; Smith WA; Randall RB; Peng Z, 2023, 'Monitoring gear wear with transmission error', Wear, 523, http://dx.doi.org/10.1016/j.wear.2023.204803

Lu R; Borghesani P; Randall RB; Smith WA; Peng Z, 2023, 'Removal of transfer function effects from gear vibration signals under constant and variable speed conditions', Mechanical Systems and Signal Processing, 184, http://dx.doi.org/10.1016/j.ymssp.2022.109714

Antoni J; Heyns PS; Lin J; Ouyang H; Schmidt S; Smith WA; Wilke DN, 2022, 'Keynote Summaries of the First International Symposium on Dynamics, Monitoring, and Diagnostics', Journal of Dynamics, Monitoring and Diagnostics, 1, pp. 189 - 199, http://dx.doi.org/10.37965/jdmd.2022.134

Randall RB; Smith WA; Borghesani P; Peng Z, 2022, 'A new angle-domain cepstral method for generalised gear diagnostics under constant and variable speed operation', Mechanical Systems and Signal Processing, 178, http://dx.doi.org/10.1016/j.ymssp.2022.109313

Borghesani P; Smith WA; Randall RB; Antoni J; El Badaoui M; Peng Z, 2022, 'Bearing signal models and their effect on bearing diagnostics', Mechanical Systems and Signal Processing, 174, pp. 109077, http://dx.doi.org/10.1016/j.ymssp.2022.109077

Chin ZY; Borghesani P; Mao Y; Smith WA; Randall RB, 2022, 'Use of transmission error for a quantitative estimation of root-crack severity in gears', Mechanical Systems and Signal Processing, 171, http://dx.doi.org/10.1016/j.ymssp.2022.108957

Hilbert M; Smith WA; Randall RB, 2022, 'The Effect of Signal Propagation Delay on the Measured Vibration in Planetary Gearboxes', Journal of Dynamics, Monitoring and Diagnostics, 1, pp. 9 - 18, http://dx.doi.org/10.37965/jdmd.2021.70

Feng K; Smith WA; Randall RB; Wu H; Peng Z, 2022, 'Vibration-based monitoring and prediction of surface profile change and pitting density in a spur gear wear process', Mechanical Systems and Signal Processing, 165, pp. 108319, http://dx.doi.org/10.1016/j.ymssp.2021.108319

Peng D; Smith WA; Randall RB; Peng Z; Mechefske CK, 2021, 'Speed estimation in planetary gearboxes: A method for reducing impulsive noise', Mechanical Systems and Signal Processing, 159, http://dx.doi.org/10.1016/j.ymssp.2021.107786

Feng P; Borghesani P; Smith WA; Peng Z, 2021, 'Corrigendum to “Model-based surface roughness estimation using acoustic emission signals” [Tribol Int 144 (2020) 1–13] (Tribology International (2020) 144, (S0301679X19306152), (10.1016/j.triboint.2019.106101))', Tribology International, 160, http://dx.doi.org/10.1016/j.triboint.2021.107012

André H; Leclère Q; Anastasio D; Benaïcha Y; Billon K; Birem M; Bonnardot F; Chin ZY; Combet F; Daems PJ; Daga AP; De Geest R; Elyousfi B; Griffaton J; Gryllias K; Hawwari Y; Helsen J; Lacaze F; Laroche L; Li X; Liu C; Mauricio A; Melot A; Ompusunggu A; Paillot G; Passos S; Peeters C; Perez M; Qi J; Sierra-Alonso EF; Smith WA; Thomas X, 2021, 'Using a smartphone camera to analyse rotating and vibrating systems: Feedback on the SURVISHNO 2019 contest', Mechanical Systems and Signal Processing, 154, http://dx.doi.org/10.1016/j.ymssp.2020.107553

Zhang H; Borghesani P; Smith WA; Randall RB; Shahriar MR; Peng Z, 2021, 'Tracking the natural evolution of bearing spall size using cyclic natural frequency perturbations in vibration signals', Mechanical Systems and Signal Processing, 151, http://dx.doi.org/10.1016/j.ymssp.2020.107376

Feng K; Smith WA; Borghesani P; Randall RB; Peng Z, 2021, 'Use of cyclostationary properties of vibration signals to identify gear wear mechanisms and track wear evolution', Mechanical Systems and Signal Processing, 150, pp. 107258, http://dx.doi.org/10.1016/j.ymssp.2020.107258

Feng K; Smith WA; Peng Z, 2021, 'Use of an improved vibration-based updating methodology for gear wear prediction', Engineering Failure Analysis, 120, pp. 105066, http://dx.doi.org/10.1016/j.engfailanal.2020.105066

Chin ZY; Smith WA; Borghesani P; Randall RB; Peng Z, 2021, 'Absolute transmission error: A simple new tool for assessing gear wear', Mechanical Systems and Signal Processing, 146, http://dx.doi.org/10.1016/j.ymssp.2020.107070

Mauricio A; Smith WA; Randall RB; Antoni J; Gryllias K, 2020, 'Improved Envelope Spectrum via Feature Optimisation-gram (IESFOgram): A novel tool for rolling element bearing diagnostics under non-stationary operating conditions', Mechanical Systems and Signal Processing, 144, http://dx.doi.org/10.1016/j.ymssp.2020.106891

Randall RB; Smith WA, 2020, 'Detection of faulty accelerometer mounting from response measurements', Journal of Sound and Vibration, 477, http://dx.doi.org/10.1016/j.jsv.2020.115318

Guo J; Randall RB; Borghesani P; Smith WA; Haneef MD; Peng Z, 2020, 'A study on the effects of piston secondary motion in conjunction with clearance joints', Mechanism and Machine Theory, 149, http://dx.doi.org/10.1016/j.mechmachtheory.2020.103824

Mauricio A; Qi J; Smith WA; Sarazin M; Randall RB; Janssens K; Gryllias K, 2020, 'Bearing diagnostics under strong electromagnetic interference based on Integrated Spectral Coherence', Mechanical Systems and Signal Processing, 140, http://dx.doi.org/10.1016/j.ymssp.2020.106673

Feng P; Borghesani P; Smith WA; Peng Z, 2020, 'Model-based surface roughness estimation using acoustic emission signals', Tribology International, 144, http://dx.doi.org/10.1016/j.triboint.2019.106101

Feng P; Borghesani P; Smith WA; Randall RB; Peng Z, 2020, 'A Review on the Relationships between Acoustic Emission, Friction and Wear in Mechanical Systems', Applied Mechanics Reviews, 72, http://dx.doi.org/10.1115/1.4044799

Smith WA; Borghesani P; Ni Q; Wang K; Peng Z, 2019, 'Optimal demodulation-band selection for envelope-based diagnostics: A comparative study of traditional and novel tools', Mechanical Systems and Signal Processing, 134, pp. 106303, http://dx.doi.org/10.1016/j.ymssp.2019.106303

Randall RB; Smith WA, 2019, 'Uses and mis-uses of energy operators for machine diagnostics', Mechanical Systems and Signal Processing, 133, http://dx.doi.org/10.1016/j.ymssp.2019.06.017

Feng P; Borghesani P; Chang H; Smith WA; Randall RB; Peng Z, 2019, 'Monitoring gear surface degradation using cyclostationarity of acoustic emission', Mechanical Systems and Signal Processing, 131, pp. 199 - 221, http://dx.doi.org/10.1016/j.ymssp.2019.05.055

Chang H; Borghesani P; Smith WA; Peng Z, 2019, 'Application of surface replication combined with image analysis to investigate wear evolution on gear teeth – A case study', Wear, 430-431, pp. 355 - 368, http://dx.doi.org/10.1016/j.wear.2019.05.024

Peng D; Smith WA; Borghesani P; Randall RB; Peng Z, 2019, 'Comprehensive planet gear diagnostics: Use of transmission error and mesh phasing to distinguish localised fault types and identify faulty gears', Mechanical Systems and Signal Processing, 127, pp. 531 - 550, http://dx.doi.org/10.1016/j.ymssp.2019.03.024

Feng K; Borghesani P; Smith WA; Randall RB; Chin ZY; Ren J; Peng Z, 2019, 'Vibration-based updating of wear prediction for spur gears', Wear, 426-427, pp. 1410 - 1415, http://dx.doi.org/10.1016/j.wear.2019.01.017

Randall RB; Antoni J; Smith WA, 2019, 'A survey of the application of the cepstrum to structural modal analysis', Mechanical Systems and Signal Processing, 118, pp. 716 - 741, http://dx.doi.org/10.1016/j.ymssp.2018.08.059

Peng D; Smith WA; Randall RB; Peng Z, 2019, 'Use of mesh phasing to locate faulty planet gears', Mechanical Systems and Signal Processing, 116, pp. 12 - 24, http://dx.doi.org/10.1016/j.ymssp.2018.06.035

Abboud D; Elbadaoui M; Smith WA; Randall RB, 2019, 'Advanced bearing diagnostics: A comparative study of two powerful approaches', Mechanical Systems and Signal Processing, 114, pp. 604 - 627, http://dx.doi.org/10.1016/j.ymssp.2018.05.011

Dackermann U; Smith WA; Alamdari MM; Li J; Randall RB, 2019, 'Cepstrum-based damage identification in structures with progressive damage', Structural Health Monitoring, 18, pp. 87 - 102, http://dx.doi.org/10.1177/1475921718804730

Borghesani P; Smith WA; Zhang X; Feng P; Antoni J; Peng Z, 2018, 'A new statistical model for acoustic emission signals generated from sliding contact in machine elements', Tribology International, 127, pp. 412 - 419, http://dx.doi.org/10.1016/j.triboint.2018.06.032

Randall B; Smith W, 2018, 'Improved cepstral techniques for operational modal analysis', International Journal of Condition Monitoring, 8, pp. 74 - 81

Haneef MD; Randall RB; Smith WA; Peng Z, 2017, 'Vibration and Wear Based Analysis of IC Engine Bearings by Numerical Simulation', Wear, http://dx.doi.org/10.1016/j.wear.2017.04.018

Smith WA; Fan Z; Peng Z; Li HUAIZHONG; Randall R, 2016, 'Optimised Spectral Kurtosis for bearing diagnostics under electromagnetic interference', Mechanical Systems and Signal Processing, 75, pp. 371 - 394, http://dx.doi.org/10.1016/j.ymssp.2015.12.034

Randall RB; Coats MD; Smith WA, 2016, 'Repressing the effects of variable speed harmonic orders in operational modal analysis', Mechanical Systems and Signal Processing, 79, pp. 3 - 15, http://dx.doi.org/10.1016/j.ymssp.2016.02.042

Smith WA; Randall RB, 2016, 'Cepstrum-based operational modal analysis revisited: A discussion on pole-zero models and the regeneration of frequency response functions', Mechanical Systems and Signal Processing, 79, pp. 30 - 46, http://dx.doi.org/10.1016/j.ymssp.2016.02.030

Hu C; Smith WA; Randall RB; Peng Z, 2016, 'Development of a gear vibration indicator and its application in gear wear monitoring', Mechanical Systems and Signal Processing, http://dx.doi.org/10.1016/j.ymssp.2016.01.018

Smith WA; Randall RB, 2015, 'Rolling element bearing diagnostics using the Case Western Reserve University data: a benchmark study', Mechanical Systems and Signal Processing, 64, pp. 100 - 131, http://dx.doi.org/10.1016/j.ymssp.2015.04.021

Dackermann U; Smith WA; Randall RB, 2014, 'Damage identification based on response-only measurements using cepstrum analysis and artificial neural networks', Structural Health Monitoring, 13, pp. 430 - 444, http://dx.doi.org/10.1177/1475921714542890

Smith W; Deshpande L; Randall B; Li H, 2013, 'Gear diagnostics in a planetary gearbox: a study using internal and external vibration signals', International Journal of Condition Monitoring,, 3, pp. 36 - 41, http://dx.doi.org/10.1784/204764213808146617

Smith W; Zhang N; Hu W, 2011, 'Hydraulically interconnected vehicle suspension: handling performance', Vehicle System Dynamics, 49, pp. 87 - 106, http://dx.doi.org/10.1080/00423111003596743

Zhang N; Smith W; Jeyakumaran J, 2010, 'Hydraulically interconnected vehicle suspension: background and modelling', Vehicle System Dynamics, 48, pp. 17 - 40, http://dx.doi.org/10.1080/00423110903243182

Smith W, 2010, 'Hydraulically interconnected vehicle suspension: optimization and sensitivity analysis', Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 224, pp. 1335 - 1355, http://dx.doi.org/10.1243/09544070JAUTO1422

Smith W; Zhang N; Jeyakumaran J, 2010, 'Hydraulically interconnected vehicle suspension: theoretical and experimental ride analysis', Vehicle System Dynamics, 48, pp. 41 - 64, http://dx.doi.org/10.1080/00423110903243190

Smith W; Zhang N, 2010, 'Recent developments in passive interconnected vehicle suspension', Frontiers of Mechanical Engineering in China, 5, pp. 1 - 18, http://dx.doi.org/10.1007/s11465-009-0092-z

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