applications


wanted to reduce the material used but still meet particular safety regulation standards. ‘Automotive design tasks frequently deal


with contradictory requirements of this kind: make something stronger while making it lighter,’ explained Sjodin. ‘Simulations here can be invaluable since modern tools can be set up to sweep over a large range of cases, or automatically optimise for a certain objective. Another example comes from a project


Design ideas can be tested virtually before the first physical prototype is built.


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environment,’ stated Sjodin. ‘Design mistakes can be corrected very early on in the design process, and thousands of design ideas can be tested virtually before the first physical prototype is built.’ COMSOL has worked on many projects to


accelerate development projects for industrial vehicles, from strengthening existing structures to exploring wireless charging technologies. In each case, simulation is enabling smarter or more efficient designs within fewer development cycles. Sjodin gave one example where integrated


steel and mining company ArcelorMittal used COMSOL Multiphysics heat transfer and multiphase flow capabilities to optimise the design of laser-welded blanks (LWBs). An LWB is a metal sheet of varying thicknesses and grades used to minimise and control the amount of material employed in vehicle manufacturing. In this scenario, the team


involving WiTricity, a company founded in 2007 to commercialise a new technology for wireless electricity invented and patented two years earlier by a team of physicists from the Massachusetts Institute of Technology (MIT), led by Professor Marin Soljačić. For this project, WiTricity optimised


technology for wireless charging of electric vehicles. In this case ‘electromagnetic simulations help with the intricate design of resonant coils responsible for transferring the energy. Tis technology has the potential of eliminating the hassle of cables in future vehicles,’ commented Sjodin.


DESIGN MISTAKES CAN BE CORRECTED VERY EARLY ON IN THE DESIGN PROCESS, AND THOUSANDS OF DESIGN IDEAS CAN BE TESTED VIRTUALLY BEFORE THE FIRST PHYSICAL PROTOTYPE IS BUILT


Solving modern simulation challenges In addition to improving on existing designs in this increasingly complex and competitive environment, simulation can also help users to overcome significant challenges as they are presented. Sjodin explained that the multi- faceted nature of many projects pulls designs in competing directions, which in itself can be a significant challenge. ‘Te use of multiphysics soſtware, such


as COMSOL Multiphysics, allow engineers to consider all of these requirements in one go and increase the probability of meeting deadlines with a successful design,’ he said. Te desire to help COMSOL users meet


the challenges that arise in their projects are leading the company to develop new soſtware features, including some features introduced due to requests from the user community. Sjodin explained that COMSOL is


‘constantly working on improving the soſtware from a variety of perspectives: performance improvements, efficient use of the latest CPUs, cluster, and cloud technologies and usability’. ‘Something we are continuously working


on by leveraging the latest in hardware and algorithmic advances,’ said Sjodin. ‘One example would be recent requests for simulation technology for testing batteries and fuel cells, using a technique known as AC impedance spectroscopy. ‘COMSOL implemented such simulation


tools recently to meet requests from engineers working with batteries and fuel cells,’ concluded Sjodin. l


COMSOL is constantly working on improving the software from a variety of perspectives


32 SCIENTIFIC COMPUTING WORLD


@scwmagazine l www.scientific-computing.com


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