| A design approach for longitudinal–torsional ultrasonic transducers H Al-Budairi, M Lucas, P Harkness Sensors and Actuators A: Physical 198, 99-106, 2013 | 131 | 2013 |
| Development status of AEOLDOS–A deorbit module for small satellites P Harkness, M McRobb, P Lützkendorf, R Milligan, A Feeney, C Clark Advances in Space Research 54 (1), 82-91, 2014 | 59 | 2014 |
| Ultrasonic rock sampling using longitudinal-torsional vibrations A Cardoni, P Harkness, M Lucas Physics Procedia 3 (1), 125-134, 2010 | 59 | 2010 |
| Drag sail for end-of-life disposal from low earth orbit PCE Roberts, PG Harkness Journal of Spacecraft and Rockets 44 (6), 1195-1203, 2007 | 58 | 2007 |
| Coupling and degenerating modes in longitudinal–torsional step horns P Harkness, M Lucas, A Cardoni Ultrasonics 52 (8), 980-988, 2012 | 47 | 2012 |
| A parametric study for the design of an optimized ultrasonic percussive planetary drill tool X Li, P Harkness, K Worrall, R Timoney, M Lucas IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control 64 …, 2016 | 42 | 2016 |
| Variable-geometry solar sailing: the possibilities of the quasi-rhombic pyramid M Ceriotti, P Harkness, M McRobb Advances in solar sailing, 899-919, 2014 | 38 | 2014 |
| Planetary science and exploration in the deep subsurface: results from the MINAR Program, Boulby Mine, UK SJ Payler, JF Biddle, AJ Coates, CR Cousins, RE Cross, DC Cullen, ... International Journal of Astrobiology 16 (2), 114-129, 2017 | 31 | 2017 |
| Maximization of the effective impulse delivered by a high-frequency/low-frequency planetary drill tool P Harkness, M Lucas, A Cardoni IEEE transactions on ultrasonics, ferroelectrics, and frequency control 58 …, 2011 | 27 | 2011 |
| Attitude stability and altitude control of a variable-geometry earth-orbiting solar sail L Felicetti, M Ceriotti, P Harkness Journal of Guidance, Control, and Dynamics 39 (9), 2112-2126, 2016 | 26 | 2016 |
| A brief overview of space applications for ultrasonics P Harkness, M Lucas Ultrasonics 52 (8), 975-979, 2012 | 22 | 2012 |
| A strategy for delivering high torsionality in longitudinal-torsional ultrasonic devices H Al-Budairi, P Harkness, M Lucas Applied Mechanics and Materials 70, 339-344, 2011 | 22 | 2011 |
| Ultrasonic rock drilling devices using longitudinal-torsional compound vibration P Harkness, A Cardoni, M Lucas 2009 IEEE International Ultrasonics Symposium, 2088-2091, 2009 | 22 | 2009 |
| Architectures for ultrasonic planetary sample retrieval tools P Harkness, M Lucas, A Cardoni Ultrasonics 51 (8), 1026-1035, 2011 | 21 | 2011 |
| An experimental study of ultrasonic vibration and the penetration of granular material D Firstbrook, K Worrall, R Timoney, F Suñol, Y Gao, P Harkness Proceedings of the Royal Society A: Mathematical, Physical and Engineering …, 2017 | 19 | 2017 |
| An aerostable drag-sail device for the deorbit and disposal of sub-tonne, low earth orbit spacecraft PG Harkness Cranfield University, 2006 | 16 | 2006 |
| Autophage Engines: Toward a Throttleable Solid Motor V Yemets, P Harkness, M Dron’, A Pashkov, K Worrall, M Middleton Journal of Spacecraft and Rockets 55 (4), 984-992, 2018 | 15 | 2018 |
| The development of the european uitrasonic planetary core drill (UPCD) R Timoney, P Harkness, X Li, A Bolhovitins, A Cheney, M Lucas AIAA SPACE 2015 Conference and Exposition, 4553, 2015 | 14 | 2015 |
| A motion control system design for an ultrasonic planetary core drill (UPCD) unit X Li, K Worrall, P Harkness, R Timoney, A Bolhovitins, M Lucas in Proceedings of AIAA SPACE 2015 Conference and Exposition, 1-11, 2015 | 12* | 2015 |
| Designing a hollow Langevin transducer for ultrasonic coring P Harkness, A Cardoni, J Russell, M Lucas Applied Mechanics and Materials 24, 65-70, 2010 | 12 | 2010 |
