Computer software by George K. Nikas

Dr Nikas is a keen Fortran programmer and computer enthusiast since the 1980s, going as far as programming in Assembly language for 8086 compatible processors and batch-file programming back in the glorious days of MS-DOS. He has developed many complex programs for engineering applications. Some of these programs were developed for his research projects and have been distributed to industrial collaborators under contract with Imperial College London. Following is a list of major programs developed by using the Fortran programming language and Lahey/GNU Fortran compilers in chronological order of latest release.

 Software (copyright George K. Nikas)

Latest release

Registered users
PILE
Calculation of the geometric profile of material piling up in normal, quasi-static, elastoplastic indentation of ductile materials by spherical and conical indenters, either rigid, elastic or plastic.
1.3.0
Apr 2021
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 squashing of 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 as a result of 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]
7.4.0
Apr 2021
KADMOS Engineering Ltd (UK)
ENTRAP
Analysis of spherical particle entrapment in elastohydrodynamic, rolling-sliding, rough, rectangular and elliptical contacts.
[Related project 1] [Related project 2]
1.3.4
Feb 2021
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.
1.0.4
Dec 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
Mar 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
Feb 2020
KADMOS Engineering Ltd (UK)
TORO
Transient, rough, non-Newtonian elastohydrodynamic lubrication analysis, three-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
Jan 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
Jan 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
Sep 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
Jun 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
Dec 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
Jun 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
Aug 1999
KADMOS Engineering Ltd (UK)
TRAJECTOR
Computation of the trajectories of disc-shaped solid particles trapped in bearing contacts. [Related project]
1.0.0
Jun 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
Jul 1995
KADMOS Engineering Ltd (UK)

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