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Multiphysics

We live in a world where multiple physical forces are at play, and the products we produce are often subject to many of these physical forces simultaneously. Fluid forces, thermal effects, structural integrity and electromagnetic radiation can all impact performance of products and industrial processes. If you try to isolate the multiple forces in play, you may not get an accurate prediction of behavior. ANSYS multiphysics solutions can help engineers examine these effects in combination and isolation, achieving the highest fidelity solution when it's needed.

Deep, proven solver technology from ANSYS is a given. Applying this solver technology to multiphysics simulation is the next step for many engineers. See below for the range of ANSYS multiphysics offering available to meet your needs.

Typical Applications

Current carrying capacity of electrical conductors whose characteristics depend on electrical current flow, thermal resistance and mechanical deformation (contact) and which also interfere with one another, such as connectors, cables or windings.

Generators, electric motors and transformers which vibrate mechanically due to electromagnetic forces and thus emit unwanted sound: in a continuous workflow, magnetic fields, mechanics and acoustics are directly linked to one another.

Controlled flow behavior under interactions with mechanical structures (fluid-structure interaction, FSI) such as, for example, the opening and closing of lamellar valves in the fluid stream or the blood flow in veins and arteries that expand as a result of pressure pulses.

Robust manufacturing processes such as welding (electric field, temperature field, mechanics), inductive heating (magnetic field, temperature) and magnetic transformation (magnetic field, mechanics).

Terminal Coupling

Some dynamic systems do not allow full field coupling due to the multiplicity and complexity of their components. Then the terminal coupling helps to describe the interactions as well as selected effects efficiently and optimize the interplay of the components. The results are transferred between the components via so-called terminals, usually in an integral (concentrated) form. These models are most frequently found in mechatronics.

Some examples:

  • Drive trains and positioning systems with mechanical and / or electrical motors, as well as transmission and control logic.
  • Machine tools with mechanically oscillating structural components, electric or hydraulic drives and a control with microcontroller and embedded software
  • Wind power plants with rotor blades, transmission in the transmission and energy conversion in the generator and inverter

 

 

 

 

Field Coupling

If ANSYS uses the spatial distribution of field variables such as forces or losses and their coupling, ANSYS uses field coupling on matrix or load vector planes. A process that has long established itself in product development.

  • The matrix coupling maps the required physical domains (mechanics, temperature, magnetic field, etc.) over a common model with corresponding degrees of freedom. This leads to a higher convergence speed and robustness of the solution, especially in strongly coupled phenomena.
  • The load vector coupling combines the simulations of different domains (flow, magnetic field, mechanics, etc.) by automated data exchange and offers the greatest possible flexibility during modeling in individual partial processes. For applications with less strong coupling, the automatic interpolation between different networks allows a clear acceleration of the numerical simulation.

 

 

 

 

Features

Best-in-class solutions for the simulation of mechanics, fluids, temperature and electromagnetism, which show their respective strengths through combination.

Comprehensive technologies for the coupling of physical disciplines and developmental areas such as mechanics, temperature, current, electromagnetic fields, MCAD, ECAD and embedded software: Scalable models ranging from nano to kilo can be used for the product description (die - microchip circuit board device / oil film) - plain bearing - transmission - drive train - vehicle).

Open interfaces and standards for flexible work processes and maximum investment protection for software and application-related know-how.

Unified software philosophy that facilitates training, use and licensing.

Qualified support by experts for individual specialist areas as well as their effective cooperation on the basis of an integrated development environment - all from a single source.

ANSYS Modules

ANSYS offers three classes of software modules for coupled tasks:

These software modules combine as a single product already substantial advantages of the field coupling.

These software modules provide field coupling by combining several products. The strengths of the individual solvers can be used in a targeted manner, which allows a modular work process over the entire application range.

Software Modules for Systemsimulation by means of Terminal Coupling: The integration in ANSYS Workbench combines the advantages of classical system simulation (complexity of calculable systems, speed) with those of 3D field simulation (real-life, safe modeling).