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
|
| 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]
|
7.3.2 February 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 February 2021 |
KADMOS Engineering Ltd (UK) |
| PILE
Calculation
of the geometrical profile of material piling up in normal,
quasi-static, elastoplastic indentation of metallic
half-spaces by rigid conical indenters, and rigid or
plastically deformable spherical indenters.
|
1.2.1 February 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 December 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) |
| 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, 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 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 |
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 |
|
| TRAJECTOR Computation of the trajectories of disc-shaped solid particles trapped in bearing contacts. [Related project] |
1.0.0 June 1996 |
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 |
|