User Story Gallery

Here you will find success stories from leading high-tech organizations and research institutions from around the world. Discover innovative products that have been designed using multiphysics simulation in a variety of application areas including the electrical, mechanical, fluid, and chemical disciplines. Use the Quick Search to find stories relevant to your area of expertise, and to learn how multiphysics simulation can be used to enhance your designs.

Additional Users Stories can be found in the 2014 edition of COMSOL News. view it now in your browser

Using Multiphysics Simulation to Prevent Building Damage

P. Sekki
Vahanen Group, Finland

In addition to surviving normal winters, a strong building must be able to survive the worst winters expected in a 50-year period. When moisture and contaminants enter concrete foundations, they create the risk of cracking or other structural damage once the soil or foundation freezes. Vahanen Group specializes in building services and performs quality and risk assessments to make sure that ...

Simulation Enables the Next Generation of Power Transformers and Shunt Reactors

L. Jovelli
Siemens, Brazil

From power generation to its distribution to end users, power transformers and shunt reactors are used throughout the electrical grid for voltage conversion and to absorb reactive power. At Siemens Brazil in Jundiai, São Paulo, designers are using multiphysics simulation to verify that grid-integrated transformers and shunt reactors can handle increasing power demands without overheating in ...

Actuation Technique for Miniature Robots Developed using Multiphysics Simulation

P. Lazarou, C. Rotinat
CEA LIST, France

Robotic devices for minimally invasive surgery procedures require flexible tools and careful actuation. But most robotic surgery devices are bulky, expensive, and physically draining for surgeons to operate for long periods of time. At the French Atomic and Alternative Energies Commission (CEA LIST), researchers are investigating miniature phase-change actuators that will reduce the strain placed ...

Patterning Cells with the Flip of a Switch for Bioengineering Applications

G. Zhang
Clemson U, SC, USA
J. Brcka, J. Faguet, E. Lee
Tokyo Electron, TX, USA

Dielectrophoresis (DEP) is a method of patterning cells and particles used in medical, electronics, and energy applications. When an electric field is applied to an array of cells or dielectric particles suspended in a medium, they become polarized, causing movement that reorganizes the particles. This is an efficient way to assemble materials layer by layer at the nanoscale, and is sometimes ...

Modeling Helps Improve Safety in the Production of Teflon

Martin Beckmann-Kluge & Fabio Ferrero

BAM German Federal Institute for Materials Research & Testing, Berlin, Germany

BAM German Federal Institute for Materials Research & Testing in Berlin promotes industrial development by providing research and consultation on materials technology and chemical engineering. Their recent work has been in analyzing the process by which highly flammable TFE gas is converted into a solid called PTFE (polytetrafluoroethylene), or the non-stick coating commonly known as ...

Keeping LEDs Cool Gets More Manageable Through Simulation

Aulis Tuominen and Mika Maaspuro
University of Turku
Turku, Finland

Toni Lopez
Philips Research
Eindhoven, The Netherlands

Sami Yllikäinen
Hella Lighting Finland Oy
Salo, Finland

Raimo Laitinen
Helvar Oy Ab
Karkkila, Finland

Light-emitting diodes (LEDs) offer many benefits over incandescent lighting, such as long life spans and high luminous efficiency, and they are environmentally friendly. One of the drawbacks, however, is that LEDs need to operate at the lowest possible temperatures and this must be carefully regulated. Researchers at Business and Innovation Development Technology at the University of Turku in ...

Dielectric Stress Simulation Advances Design of ABB Smart Grid-Ready Tap Changers

Tommi Paananen, David Geibel, Bill Teising, Mårten Almkvist, Jon Brasher, Josh Elder, Bob Elick and Chris Whitten
ABB Alamo
Tennessee

Consumers of power rely on fairly stable voltages. Transformers contain tap changers which vary the ratio of secondary to primary turns by switching the point at which either the input or output circuits are connected. Changing this ratio enables stepped voltage regulation of the output. As the world moves toward the modernized smart grid, the tap changer’s design must be altered to make it ...

Control of Joule Heating Extends Performance and Device Life

Jean-Louis Gelet and Antoine Gerlaud
Mersen, France

Large electrical systems carrying high currents could pose a danger if any of their components, such as fuses and bus bars, fail. In order to increase safety and improve manufacturing, it is necessary to understand the failure mechanisms of those components. One of those components, a bus bar, is made up of a single piece of conducting metal that replaces individual, thick cables when conducting ...

Pushing the Limits of Chip Density

Derek Bassett and Michael Carcasi
Tokyo Electron America
Austin, TX

Chip manufacturers have been adhering to Moore’s law, a law stating that the number of transistors that can be economically placed on an integrated circuit doubles every year, since 1965. As the number of transistors increases, however, the process of manufacturing integrated circuit, called photolithography, becomes more difficult. Each device requires approximately 200 cleaning and ...

How Reclosers Ensure a Steady Supply of Power: It’s All in the Magnet

O. Craciun, and colleagues
ABB AG
Ladenburgh, Germany

When a tree branch touches overhead cables and causes a momentary short circuit, your lights may flicker. A device called a recloser ensures that power to your home is not cut off for a longer period. ABB AG, a leading manufacturer in power technology, is working towards designing a more reliable recloser. One objective in this design process was to optimize the size of the permanent magnet ...

Quick Search