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 those programs were
developed for his research projects
and registered by industrial collaborators under contract with
Imperial College London. Following is a list of
major Fortran programs in
chronological order of latest release.
|
Software (© 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;
computation of 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]
|
7.5.3
May 2024
|
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] |
1.5.0
Jan 2024
|
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]
|
1.3.5
Oct 2023
|
KADMOS Engineering Ltd (UK) |
| TORO Transient, rough-contact, 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 project1] [Related project 2] |
2.5.1
Oct 2023
|
KADMOS Engineering
Ltd (UK) Torotrak (Development) Ltd (UK) |
| 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] |
1.5.0
Sep 2023
|
KADMOS Engineering Ltd (UK) |
| ROSEAL Rough-contact, thermoelastohydrodynamic lubrication analysis, solid mechanics, contact mechanics and performance analysis of rectangular-rounded, polymeric, hydraulic rod seals for reciprocating motion. [Related publication] |
1.3.1
Sep 2023
|
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) |
| 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-contact 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-contact, 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 |
|