Dr Nigel Johnston - Published Papers

Johnston, D. N.
A Time Domain Model of Axial Wave Propagation in Liquid-Filled Flexible Hoses
Proc IMechE, Part I, Vol 220, No. 7, pp517-530
[abstract]

Johnston, D. N.
Efficient methods for numerical modeling of laminar friction in fluid lines
Trans. ASME, Journal of Dynamic Systems Measurement and Control, Vol. 128, Issue 4, Dec. 2006, pp829-834
[abstract]

Boyd, L.J., Roberts, A.P., Collett, A.P.S., Johnston, D.N., Tilley, D.G., Edge, K.A
Prediction of Hydraulic Inertance using Acoustic Measurements and CFD Modelling,
ASME IMECE, Chicago, Nov 2006

Harrer, M., Pfeffer, P.E., Johnston, D.N.
Steering Feel - Objective Assessment of Passenger Cars - Analysis of Steering Feel and Vehicle Handling
FISITA, Japan, Oct 2006

Pfeffer, P.E., Harrer, M., Johnston, D.N.
Modelling of a Hydraulic Steering System
FISITA, Japan, Oct 2006

Johnston, D.N.
Prediction of fluid inertance in non-uniform passageways
Trans. ASME, Journal of Fluids Engineering, Vol. 128, Issue 2, March 2006
[abstract]

Soumelidis M.I., JohnstonD.N., Edge K.A., Tilley D.G,
A Comparative Study of Modelling Techniques for Laminar Flow Transients in Hydraulic Pipelines,
JFPS conf., Nov 2005

Pfeffer P.E., Johnston D.N., Harrer M
Energy Consumption of Electro-Hydraulic Steering Systems,
SAE Congress, Detroit, 2005

Johnston, D. N.
Efficient methods for numerical modelling of laminar friction in fluid lines
2004 ASME International Congress and R&D Expo, Anaheim, CA, November 13-19, 2004
[abstract]

Brunelli M, Johnston, DN and Edge KA.
Impedance Characteristics of Cartridge Relief Valve
8th Scandinavian International Conference on Fluid Power, Tampere, Finland 2003
[abstract]

Johnston D N
Prediction of Hydraulic Inductance
2002 ASME International Mechanical Engineering Congress and Exposition, New Orleans, USA, Nov 2002
[abstract]

Johnston, D. N., Edge, K. A. and Brunelli, M.
Impedance and stability characteristics of a relief valve
Proc. Instn Mech. Engrs, Vol. 216, Pt I5, 2002, 371-382
[abstract]

Weber, S.T., Johnston, D.N., and Edge, K.A.
Mathematical modelling of a load control valve
3 Iternationales Fluidtechnisches Kolloquium 2002 in Aachen, March 2002

Weber, S T, Johnston, D N, and Edge, K A.
Flow visualisation of a load control valve
The Seventh Scandinavian International Conference on Fluid Power, SICFP '01 Linköping, Sweden, Volume 3, pp. 87-102, May-June 2001

Weber, S T, Johnston D N, Edge, K A
Recent Research into Cartridge Style Hydraulic Valves
PTMC 2000, Bath, Sept 2000

Johnston, D N
Generation and transmission of fluid-borne noise
IMechE Seminar on Environmental Impact of Fluid Power Systems, London, Nov 4, 1999

Jones, B.L., Johnston, D.N., Longmore, D.K.
Simulation of Suction Flow Ripple in Power Steering Pumps
Paper 982023, SAE International Off-Highway Congress and Exposition, Milwaukee, Sept 14-16, 1998

Jones, B.L., Johnston, D.N., Longmore, D.K.
Sources of noise in power steering systems
IMechE seminar on Land Transport Hydraulics, Bath, 1997

Taylor S E M, Johnston D N and Longmore D K
Experimental validation of pipeline models for laminar and turbulent transient flow
Proceedings of the 1997 ASME International Mechanical Engineering Congress and Exposition, Dallas, TX, USA, Nov 16-21 1997, The Fluid Power and Systems Technology Division (Publication) FPST, 1997, Vol.4, pp.99- 104

Longmore D K, Johnston D N and Drew, J E
Measurement of the dynamic properties of hose walls required for modelling fluid-borne noise
Proceedings of the 1997 ASME International Mechanical Engineering Congress and Exposition, Dallas, TX, USA, Nov 16-21 1997, The Fluid Power and Systems Technology Division (Publication) FPST, 1997, Vol.4, pp.105- 111

Taylor S E M, Johnston D N and Longmore D K
Modelling of transient flows in hydraulic pipelines
Proc IMechE Pt I, vol. 211, no. I6, 1997, 447-456

Drew J E, Longmore D K, Johnston D N
Measurement of the longitudinal transmission characteristics of fluid-filled hose
Proc IMechE Pt I, vol 211, 1997, 219-228

Johnston, D N, Drew, J E
Measurement of Positive Displacement Pump Flow Ripple and Impedance
Proc IMechE pt I, Vol 210, pp65-74, 1996

Drew J E, Longmore DK, Johnston DN
The Systematic Design Of Low Noise Power Steering Systems
4th Scandinavian Fluid Power Conference, Tampere, Finland, Sept. 1995

Stone C R, Leonard H J, Elliott C, Newman M J, Charlton S J, Johnston D N
Design and performance of a variable valve timing system on a highly turbocharged diesel engine - experimental and predicted results
IMechE Journal of Power and Energy, Part A, vol. 209, No. A4, pp297-312, 1995

Lau K K, Edge K A, Johnston D N
Impedance characteristics of hydraulic orifices
Proc IMechE pt I, Vol. 209, 1995, pp 241-253

Johnston D N, Longmore D K
Rating of Pump Fluid-Borne Noise
ASME International Congress & Exposition, Chicago, November 1994

Johnston D N, Longmore D K, Drew J E
A technique for the measurement of the transfer matrix characteristics of two-port hydraulic components
ASME International Congress & Exposition, Chicago, November 1994

Lau, K K, Edge K A, Johnston, D N
Measurement of the transfer matrix characteristics of hydraulic filters and silencers
Bath International Fluid Power Workshop, Sept. 1994

Drew J, Longmore DK, Johnston DN
The noise characteristics of power steering systems
IMechE conf, on Vehicle NVH and Refinement, Birmingham, May 4-5, 1994

Dickinson A L, Edge K A, Johnston D N
Measurement and prediction of power steering vane pump fluidborne noise
SAE noise & vibn conf, Traverse City, Mi, May 1993
Proc SAE International, 1993, pp267-275, #931294
SAE Transactions - Journal of Passenger Cars, vol 102, sect 6, 1993, #931294, pp1753-1761

Sanada K, Richards CW, Longmore DK, Johnston DN
A finite element model of hydraulic pipelines using an optimized interlacing grid system
IMechE Vol 207, part I, 1993, pp213-222

Sanada K, Richards CW, Longmore DK, Johnston DN, Burrows CR
Practical requirements for modelling the dynamics of hydraulic pipelines
2nd JHPS Int. Symposium on Fluid Power, Tokyo, Sept. 1993

Mathieson MF, Charlton SJ, Johnston DN, Horrocks R,Watts M
A hydraulic tappet with variable timing properties
SAE Int Congress & Expo, Detroit, March 1993, #930823
SAE Publication: Variable Valve Actuation and Control, SP-956, 1993, #930823

Johnston DN, Edge KA, Vaughan ND, Raggett M
Experimental and computational study of the performance of a reciprocating pump
ASME WAM, New Orleans, 1993

Vaughan ND, Johnston DN, Burnell LR
The use of computational fluid dynamics in hydraulic valve design
Bath Intl Fluid Power Workshop, 1992

Vaughan, N.D., Johnston, D.N., Edge, K.A.
Numerical simulation of fluid flow in poppet valves
Proc. IMechE, part C, Vol 206, 1992, pp119-127

Charlton SJ, Johnston DN, Pennington GJ, Murden BF, Reeves, D
A hydraulic cam follower with variable timing properties
IMechE Seminar on Variable Geometry Engines, IMechE, London, 1991

Edge, K.A., Johnston, D.N.
The impedance characteristics of fluid power components: relief valves and accumulators
Proc IMechE, part I, 1991

Johnston, D.N., Edge, K.A.
The impedance characteristics of fluid power components: restrictor and flow control valves
IMechE conf: Eurotech 91, Birmingham, 1991
Proc IMechE, part I, 1991

Johnston, D.N., Edge, K.A., Vaughan, N.D.
Experimental investigation of the flow and force characteristics of hydraulic poppet and disc valves
Proc IMechE, part A, 1991

Johnston, D.N.
Numerical modelling of reciprocating pumps with self-acting valves
Proc IMechE, part I, 1991

Johnston, D.N., Edge, K.A.
A test method for measurement of pump fluid-borne noise characteristics
SAE off-highway & powerplant congress, Milwaukee, 1991
Trans. SAE, Section 2, Journal of Commercial Vehicles, #911761, 1991, 148-157

Johnston, D.N., Edge, K.A.
In-situ measurement of the wavespeed and bulk modulus in hydraulic lines
Proc. IMechE, part I, 1991

Darling, J., Tilley, D.G., Johnston, D.N., Mu, C.
The use of acoustic emission for condition monitoring in high pressure hydraulic pumps
IMechE conf: Eurotech 91, 1991

Edge, K.A., Johnston, D.N.
The `secondary source' method for the measurement of pump pressure ripple characteristics, part 2: experimental results
Proc IMechE, Part A, vol. 204, 1990, pp41-46

Edge, K.A., Johnston, D.N.
The `secondary source' method for the measurement of pump pressure ripple characteristics, part 1: description of method
Proc IMechE, part A, vol. 204, 1990, pp33-40

Johnston, D.N., Edge, K.A.
Simulation of the pressure ripple characteristics of hydraulic circuits
IMechE seminar on gas and liquid pulsations in piping systems - prediction and control, London, 1989, C413/079
Proc IMechE, part C, vol 203, 1989, pp119-127

Edge, K.A., Johnston, D.N.
A new method for evaluating the fluid borne noise characteristics of positive displacement pumps
7th int. fluid power symposium, Bath, 1986