One Solution — 3 Pillars
OOFELIE::Multiphysics + RayJack ONE, coupled in a true closed loop
OOFELIE::Multiphysics – The Structural Foundation
A Belgium-developed, sovereign multiphysics solver for mission-critical space and defence systems — covering structural, thermal, acoustic, electromagnetic, piezoelectric, and fluid–structure coupled analyses.
Structural and thermal analyses are performed using Simcenter™ 3D with OOFELIE::Multiphysics
This provides the physical description of the engineering system under its operating conditions.
Typical use-cases
| Analysis | What It Predicts | Why It Matters for Optics |
| Static | Gravity sag, pre-load, steady-state thermal | Baseline alignment & focus shift |
| Modal | Natural frequencies & mode shapes | Launch resonance avoidance |
| Harmonic | Sinusoidal response | Micro-vibration jitter (wheels, coolers) |
| Transient | Time-dependent events | Eclipse transitions, thermal shock |
| Random Vibration | Broadband statistical response | Launch-phase misalignment risk |
Adaptive Optics
Design systems that correct wavefront errors in real time
RayJack ONE – The Optical Vision
A non-sequential ray tracer built for the complexity of real-world space optics — where standard sequential tools reach their limits.
Optical performance is evaluated using RayJack ONE.
High-fidelity ray tracing enables the optical consequences of structural and thermal changes to be evaluated.
Geometry & Deformation
- Exact NURBS, Bézier, spline free-form surfaces
- Direct ingestion of FEM nodal displacements (uₓ, uᵧ, u_z) mapped onto optical control points
- Sub-nanometre surface fidelity
Complex Physics
- GRIN: Native volumetric refractive-index fields (thermal & stress gradients)
- Coherent Propagation: Phase-preserving — interference, speckle, LIDAR, laser comms
- Stress Birefringence: Native photo-elastic modelling (nₒ, nₑ splitting)
- Stray Light: Full non-sequential ghost & scattering analysis
Sequential vs. RayJack ONE
| Capability | Standard Sequential Tracer | RayJack ONE |
| Ghosts & scattering | Limited | Full non-sequential |
| GRIN effects | Partial | Native volumetric |
| Birefringence | Manual/limited | Native photo-elastic |
| Deformed surfaces | Re-meshing required | Direct control-point mapping |
| Coherent propagation | Not supported | Phase-preserving |
STOPTIMA – The Data Bridge
STOPTIMA provides the bridge between the structural simulation results and the optical model.
Its role is to transform relevant mechanical and thermal states into information that can be used for optical performance analysis.
Seamless. Cross-Platform. High-Fidelity.
- Hybrid deployment: OOFELIE::Multiphysics on Linux HPC or Windows; RayJack ONE on Windows
- In-memory binary exchange: no file I/O bottlenecks, across operating systems
- Direct field mapping: full-order structural information preserved, interpolation losses minimized