Computer software by George K. Nikas

A keen FORTRAN programmer and computer enthusiast since the 1980s, going as far as programming in Assembly language for 8086 compatible processors and batch programming in MS-DOS, Dr Nikas has developed many complex programs for engineering applications. Some of these programs were distributed to industrial collaborators under contract with Imperial College London and were developed for the authorís research projects. Following is a list in order of latest release of the main programs developed with the FORTRAN 95 programming language and professional Lahey FORTRAN compilers.

 Software (copyright © George K. Nikas)

Latest release

Registered users
ENTRAP
Analysis of spherical particle entrapment in elastohydrodynamic, rolling-sliding, rough, rectangular and elliptical contacts.
[Related project 1] [Related project 2]
1.3.1
June 2020
KADMOS Engineering Ltd (UK)
POROUS
Performance analysis of porous bearing materials saturated with oil containing disc-shaped particles that act as one-way valves in a novel lubrication mechanism. [Related project]
1.3.1
March 2020
KADMOS Engineering Ltd (UK)
MINISEAL
Profile optimization of hydraulic, polymeric, sliding seals to minimize an objective function of mass leakage rate, friction force and abrasive wear under leakage, friction, structural-strength and manufacturability constraints.
1.0.3
February 2020
KADMOS Engineering Ltd (UK)
PhD
Thermoviscoplastic effects of solid contamination particles in rectangular, rolling-sliding elastohydrodynamic contacts. Three-dimensional subsurface elastic stress analysis; surface thermoviscoplastic displacements in concentrated contacts from squashed ductile debris particles; analysis of frictional heating and flash temperatures; particle entrapment analysis for rolling-sliding line contacts; analysis of the formation of tribochemical surface layers from dynamic thermal effects. Calculation of dynamic particle forces, mean friction coefficient of the contact, plastic work and power (energy consumption) to squash a particle. [Related project]
7.2.13
February 2020
KADMOS Engineering Ltd (UK)
FILM
Calculation of the central and minimum film thicknesses, average and maximum contact pressures, contact dimensions, elastic deflection, and the lambda ratio of line and elliptical lubricated contacts, including corrections for thermal and roughness effects. Based on experimentally validated formulae, which are well-established in the literature.
1.2.0
February 2020
KADMOS Engineering Ltd (UK)
TORO
Transient, rough, non-Newtonian elastohydrodynamic lubrication analysis, 3-dimensional stress and contact fatigue analysis of toroidal Infinitely Variable Transmissions. It covers rolling-sliding-spinning, elliptical elastohydrodynamic contacts with roughness, non-Newtonian and transient effects under isothermal conditions. [Related project]
2.3.0
January 2020
KADMOS Engineering Ltd (UK)
Torotrak (Development) Ltd (UK)
ROSEAL
Rough thermoelastohydrodynamic lubrication analysis, solid mechanics, contact mechanics and performance analysis of rectangular-rounded, polymeric, hydraulic reciprocating seals.
1.1.2
January 2020
KADMOS Engineering Ltd (UK)
NIVAC
Material suction calculations for single-hosed vacuum systems related to vacuum trucks and mobile vacuum equipment. Developed for the author's Greek agency of DISAB (Sweden).
1.8.2
September 2019
KADMOS Engineering Ltd (UK)
ROVAS
Transient, smooth elastohydrodynamic lubrication analysis, mechanics and performance analysis of composite seals (PTFE-elastomer-PTFE) of goalpost shape for rotary vane actuators. This also covers rectangular-rounded reciprocating polymeric seals in general. [Related project]
1.1.3
June 2017
KADMOS Engineering Ltd (UK)
Smiths Aerospace (UK)
Trelleborg (UK)
SKF
Solid particle entrainment and entrapment analysis in elastohydrodynamic, rolling-sliding, rectangular (line) and circular (point) contacts. [Related project]
1.4.1
December 2006
KADMOS Engineering Ltd (UK)
SKF (The Netherlands)
SEAL
Transient, rough, elastohydrodynamic lubrication analysis, mechanics and performance analysis of rectangular, elastomeric, reciprocating seals and back-up rings, including tandem (dual) seals. [Related project]
1.1.1
June 2004
KADMOS Engineering Ltd (UK)
Smiths Aerospace (UK)
Trelleborg (UK)
LOAD
Calculation of the static load distribution and corresponding tooth flank modifications to minimize the dynamic loading of spur gears with general tooth flank geometry. [Related project]
1.5.0
August 1999
KADMOS Engineering Ltd (UK)
TRAJECTOR
Computation of the trajectories of disc-shaped solid particles trapped in bearing contacts. [Related project]
1.0.0
June 1996
KADMOS Engineering Ltd (UK)
SKF (The Netherlands)
EHL
Solution of the elastohydrodynamic problem for line contacts and Newtonian fluids under steady-state conditions. [Related project]
1.0.0
July 1995
KADMOS Engineering Ltd (UK)

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