CableSim
High-Fidelity EM Simulation for Complex Wire Harnesses
A dedicated solution for the high-fidelity simulation of complex cable harnesses, from shielding effectiveness to indirect coupling, fully integrated within your 3D environments.
Why CableSim ?
In aerospace, automotive, and defense systems, cable harnesses are the primary vectors for electromagnetic interference (EMI). CableSim allows you to accurately simulate propagation, crosstalk, and immunity within massive 3D structures. By combining Multi-conductor Transmission Line (MTL) theory with Axessim’s full-wave 3D solvers, it bridges the gap between signal integrity and environmental EM analysis.
Data Import and Integration
Large and complex cable harness description capability
Importing the 3D mechanical geometry of the cable harness
Importing cable harness electrical description (industrial format, tabulated format based on Excel)
Dedicated and optimized cable harness editors (schematic editor, 3D editor, etc.)
Cross-Section Parameter
Realistic bundle segment cross section generation and visualisation
Calculating the key electromagnetic parameters (e.g., per-unit-length inductance (L), capacitance (C), resistance (R), and conductance (G)) for each cable segment based on the wire arrangement, insulation, shielding, and proximity to ground planes
Hybrid Simulation
Configuring the simulation to handle complex scenarios where cable harnesses interact with larger 3D structures
CableSim manages with MaxSim the seamless coupling between the cable harness solver and the main 3D FDTD solver
Analysis and correction of wiring data
Reconciliation between schematic (2D) and geometric (3D) data
Validation framework : A validation framework of harness description based upon a rule engine : verification on electrical & connectivity, geometric & physical check
Technology database
Cable materials database
Extensive library of cable technologies
Flexible new types creation process thanks to an unlimited hierarchical model
Electromagnetics simulation
Transformation for reliable Multiconductor Transmission Line Network (MTLN) simulations
Automated Harness Segmentation: Automatically dividing the complex 3D harness path into sequential transmission line elements (MTL) that the solver can use
Visualization parameters
Conducted outputs (voltage, currents, power, …) on localized probes or along parts of the harness
Radiation patterns
Advance parametric study features
Source and Component Assignment
Definition of Excitation and Termination: Assigning the signal sources (plane waves, local voltage or current generators).
Lumped Component Definition: Defining and placing lumped components (e.g., filters, connectors, term
MILO is a software developed in cooperation with ONERA.
HPC MTLN solver
MILO, a fast and accurate transmission line solver in time and frequency domains :
Simulation engines : FDTD for MTLN (time domain), BLT for MTLN (frequency domain), MNA and SV engines for linear electrical circuits;
Cosimulation with 3D Temsi-FD solver in order to take into account the cable harness in its physical environment
HPC compatible : Intensive computation with Open-MP and MPI parallelism.
Preview of results
Pre-visualize your data with a full set of plots allowing a quick and easy analysis before doing any post processing in Kawa software :
Real and complex curves
Polar views
Histograms
The CableSim Advantage
Massive Time Savings:
Avoid the impossible task of “full 3D” modeling for every individual wire in a multi-meter harness.
Unmatched Accuracy:
Algorithms validated against laboratory tests on real-world, complex cable configurations.
Seamless Ecosystem:
Fully integrated with Maxsim for 3D modeling and Kawa for advanced post-processing of induced currents and voltages.