Dr
Nikas has been 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 FORTRAN programs in
chronological order of latest release.
|
Software (copyright © George K. Nikas) |
Latest release |
Registered users
|
| ROSEAL Rough thermoelastohydrodynamic lubrication analysis, solid mechanics, contact mechanics and performance analysis of rectangular-rounded, polymeric, hydraulic rod seals for reciprocating motion. [Related publication] |
1.2.9 Jan 2023
|
KADMOS Engineering Ltd (UK) |
| TORO Transient, rough, non-Newtonian, isothermal elastohydrodynamic lubrication analysis and three-dimensional stress and contact fatigue analysis of toroidal Infinitely Variable Transmissions. It covers rolling-sliding-spinning, elliptical elastohydrodynamic contacts. [Related project] |
2.4.4
Nov 2022
|
KADMOS Engineering Ltd (UK) Torotrak (Development) Ltd (UK) |
| ENTRAP Analysis of spherical particle entrapment in elastohydrodynamic, rolling-sliding, rough, rectangular and elliptical contacts. [Related project 1] [Related project 2] |
1.4.2 Nov 2022 |
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 ductile
debris particles; analysis of frictional heating and flash
temperatures; particle entrapment analysis for rolling-sliding
line contacts; analysis of tribochemical surface-layer
formation as a result of dynamic thermal effects. Computation
of dynamic particle forces, mean friction coefficient of the
contact, plastic work and power (energy consumption) to squash
a particle. [Related project]
|
7.4.4
Jul 2022
|
KADMOS Engineering Ltd (UK) |
| 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. [Related publication]
|
1.3.4 Jul 2022 |
KADMOS Engineering Ltd (UK) |
| FILM Computation 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. |
1.3.1 Jan 2022 |
KADMOS Engineering Ltd (UK) |
| TRAJECTOR Computation of the trajectories of disc-shaped solid micro-particles trapped in bearing contacts, based on the velocity fields of the cooperating bearing surfaces. [Related project] |
1.1.1 Jan 2022 |
KADMOS Engineering
Ltd (UK) SKF (The Netherlands) |
|
POROUS
Performance analysis of porous bearing materials saturated with oil which carries disc-shaped particles acting as one-way valves on the pores under alternating normal load. [Related project] |
1.4.1 Jan 2022 |
KADMOS Engineering Ltd (UK) |
| NIVAC Material suction computations for single-hosed vacuum systems related to vacuum trucks and mobile vacuum equipment. Developed for the author's Greek agency of Swedish company DISAB. |
1.8.3 Jan 2022 |
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. [Related publication] |
1.0.4 Dec 2020 |
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. [Related project] |
1.1.3 Jun 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 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 Computation 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 |
|
| EHL Solution of the elastohydrodynamic problem for line contacts and Newtonian fluids under steady-state conditions. [Related project] |
1.0.0 Jul 1995 |
|