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| Paul
Greening |
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I have been
lecturer in structures at UCL since July 2001. Prior to this I worked
for several years developing an advanced geotechnical testing laboratory
in the department
of civil engineering at the University
of Bristol. For three years before that I operated Bristol's
earthquake
simulator.
My PhD was completed in 1999 under
the supervision of Prof
Nick Lieven of the aerospace
engineering department at Bristol. The research studied the
sensitivity of measured structural dynamic data to loading and deformity.
More specifically I demonstrated that the effects of loading are
a threat to the likely success of model updating techniques. In
response to this observation, I developed updating parameters which
account for loading effects. I graduated with a BEng in civil engineering
from Bristol in 1994.
I am a graduate
member of the ICE, vice chairman
of SECED (and webmaster)
and a member of EEFIT under
the auspices of which I visited Turkey after the Kocaeli earthquake
of 17th August 1999 and Gujarat after the 26th January 2001 earthquake.I
am also a committee member of SIMoNET
(Structural Integrity Monitoring Network) which is co-ordinated
from the department of mechanical
engineering at UCL.
I am warden
of Langton
Close and Frances Gardner Halls of Residence.
Research Interests
I have a inherited
an interest from the geomechanics group at Bristol in using bender
elements to determine the small strain shear stiffness of soil.
I am supervising an EPSRC
funded programme of research with Cambridge
Insitu Ltd. to develop an objective and automatic method of
processing the raw experimental results. A new system, provisionally
named ABETS, for
taking measurements using bender elements has been developed at
UCL. Data collection is carried out using a PICO dual channel oscilloscope
unit (either ADC212 or ADC216). The rest of the system is PC-based.
A transmitted signal is generated via a built-in soundcard. Control
of the aquisition unit, data processing and storage is performed
in a spreadsheet. More information and downloads are available here.
I am interested
in experimental modal analysis and dynamic FE modelling of civil
engineering structures. I have several undergraduate research students
working on a scale model
of the recently opened millenium
bridge.
I am investigating
how structural identification techniques can be implemented with
a new breed of accelerometers based on MEMS technology. These transducers
are very cheap and require little power opening the prospect that
they might be built routinely into new civil engineering infrastructure
allowing feedback about the state of health to be monitored continuously.
Teaching
In the academic
year 2003/2004 I am responsible for the following courses:
I also contribute to
the measurement and computation course
Notes
on using an ACER Tablet PC for lecturing.
Publications
| Journal
papers |
| Lieven
NAJ, Greening PD, Effect of Pre- and Residual Stress on Modal
Behaviour, Phil. Trans. R. Soc. Lond. A (2001) 359, 97-111 |
| Lings
ML, Greening PD, A Novel Bender/Extender Element for Soil Testing,
Geotechnique (2001) 51(8), 713-717 |
| Arroyo
M, Greening PD, Phase and amplitude responses associated with
the measurement of shear-wave velocity in sand by bender elements:
Discussion Canadian Geotechnical Journal (2002) 39(2),
483-484 |
| Greening
PD, Lieven NAJ, Identification And Updating of Loading In Frameworks
Using Dynamic Measurements, Journal of Sound and Vibration (2003)
260(1), 101-115 |
| Arroyo
M, Muir Wood D, Greening PD, Source near field effects and pulse
tests in soil samples, Geotechnique (2003) 53(3), 337-345 |
| Arroyo
M, Greening PD, Muir Wood D, An estimate of uncertainty in current
laboratory pulse test practice, An estimate of uncertainty in
current laboratory pulse test practice Riv. Italiana di Geotecnica
(2003) 37(1) 33-51 |
| Greening
PD, Nash DFT, Frequency domain determination of G0 using bender
elements, ASTM Geotechnical Testing Journal (2004) 27(3)
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| Bahra
AS, Greening PD, Mode Traces in Degenerate Eigensystems and
Augmented Assurance. Accepted for publication in AIAA journal. |
| Arroyo
M, Muir Wood D, Greening PD, Rio J, Medina L. Sample size effects
on bender-based axial G0 measurements. |
| Bahra
AS, Greening PD, Particularities of Newton's Method in the Axial
Force Determination of Redundant Space Frames Utilising Eigenpair
Functions. |
| Conference
papers |
| Giampellegrini
L, Greening PD, Error bounds for modal parameters estimated
from correlation-driven stochastic realisations. Submitted to
1st International Operational Modal Analysis Conference, Copenhagen,
April 2005 |
| Bahra
AS, Greening PD. Assessment of Mode Tracing Assurance in Numerical
Iteration. To be presented at International Modal Analysis Conference,
Orlando, February 2005 |
| Bahra
AS, Greening PD, Identification of Force Distribution in Reduntant
Space Frames via Dynamic Measurement, International Modal Analysis
Conference, Detroit, February 2004 |
| Greening
PD, Nash DFT, Benahmed N, Viana da Fonseca A, Ferreira C, Comparison
of shear wave velocity measurements in different materials using
time and frequency domain techniques, Deformation Characteristics
of Geomaterials, Lyon 2003 |
| Rio
JF, Greening PD, Influence of sample geometry on apparent shear
wave velocity measurements using bender elements, Deformation
Characteristics of Geomaterials, Lyon 2003 |
| Greening
PD, Lieven NAJ, Shape Updating of Finite Element Models Using
Modal Analysis Data, International Conference on Advances in
Structural Dynamics, Hong Kong 2000 |
| Taylor
CA, Greening PD, Sofronie RA, Seismic Resistant Retaining Walls
of Reinforced Soil, 12th World Congress on Earthquake Engineering,
Aukland, NZ, February 2000 |
| Greening
PD, Lieven NAJ, Modelling Dynamic Response of Stressed Structures,
International Modal Analysis Conference, Florida, 2-5 February
1999 |
| Lieven
NAJ, Greening PD, Modelling of dynamic behaviour resulting from
residual stresses, International Modal Analysis Conference,
Florida, 2-5 February 1999 |
| Greening
PD, Lieven NAJ, The influence of lack of Fit and Redundancy
on Dynamic Behaviour and Model Updating - A Case Study, International
Modal Analysis Conference, Santa Barbara, 2-5 February 1998 |
| Greening
PD, Lieven NAJ, The Effect Of Pre-Load and Associated Deformation
On The Stability of A Simple Updating Problem, International
Modal Analysis Conference, Orlando, 4-6 February 1997 |
| Greening
PD, Lieven NAJ, Vann AM, Effect of a Pre-Load on The Dynamic
Properties of a Simple Structure, Proceedings of 2nd International
Conference, Structural Dynamics Modelling: Test, Analysis, Correlation
and Updating, Cumbria, UK, 3-5 July 1996 |
| Other |
| Greening
PD, Dynamic finite element modelling and updating of loaded
structures, PhD Thesis, University of Bristol, 1999 |
| Greening
PD, The Kocaeli (Izmit) Earthquake of 17th August 1999, SECED
Newsletter, Vol 13 No 3 1999, ISSN 0967-859X |
| Greening
PD, Vince D, Chapter 7: Infrastructures and marine facilities,
EEFIT report on Kocaeli Earthquake of August 1999 |
| Courtney
T, Taylor CA, Greening PD, Earthquake Team Reports from Turkey
and Taiwan, Water Power and Dam Construction (2000) 52(2)
18-20, ISSN 0306-400X |
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