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MADYMO

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MADYMO stands for MAthematical DYnamic MOdels. It is a software package developed by TASS (TNO Automotive Safety Solutions), headquartered in Rijswijk, the Netherlands. It a leading design & analysis software for occupant safety systems in the transport industry.[1]. MADYMO is known for fast and accurate calculations of injury risks and safety system performance. MADYMO is the world's leading occupant safety design software package which can be used to simulate the dynamic behavior of mechanical system. MADYMO has proven itself in numerous applications, often supported by verification studies using experimental test data. Application areas include Automotive crash safety, Train interior safety, Motorcycle safety, Aircraft and helicopter safety, Consumer product safety, Accident re-construction, Vehicle handling.


MADYMO Solver vs Traditional FEM Solvers

MADYMO has a multibody dynamics based solver which provides fast and accurate results. On May 14th, the Automotive Occupant Restraints Council (AORC - www.aorc.org) presented the results of their frontal impact occupant safety benchmark at its 2010 annual general meeting. In this benchmark, all most commonly used combinations of simulation software codes and crash dummy models were compared on their predictive value versus physical test data and their CPU time efficiency. The MADYMO solver with multibody Hybrid-III models proved to be among the best on response accuracy, while being by far the fastest solution. The AORC benchmark results illustrate the unique strength of MADYMO in combining accurate and robust dummy models with a very high simulation speed. The MADYMO models proved to be as accurate as the best FE models, but magnitudes faster (MADYMO 1 minute vs. FE 12 hours). Compared to the fastest FE alternative, the MADYMO models were on average 9 times faster and much more accurate. These AORC benchmark results confirm MADYMO's market leading position in occupant safety simulation.[2]

Product Modules

MADYMO has a range of product modules with different functionality[3]

  • MADYMO/XMADgic - A Pre-processor for MADYMO. It is a XML-editor with dedicated functionality to support you in editing an XMLinput deck for the MADYMO solver. The editor fully complies with the XML standard.
  • MADYMO/MADpost - MADPost is a multi-platform post processor for the MADYMO solver. It has been designed to facilitate optimal use of the MADYMO solver output – both for viewing animations and creating time-history plots. MADPost also supports import and display of some foreign FE code output formats and physical test data formats, such as video formats and ISO formatted data.
  • MADYMO/Exchange - MADYMO/Exchange is a MADYMO/Workspace tool that automates and simplifies the use of the MADYMO software, allowing controlled model modification and controlled exchange of components, such that a consistent and efficient MADYMO modelling process is achieved. MADYMO/Exchange consists of a GUI that guides the user step-by-step through the modelling tasks. All steps are represented in the GUI via individual tabs.
  • MADYMO/Exchange Assistant - MADYMO/Exchange Assistant is an authoring tool for the Exchange super-user, allowing controlled model modification and controlled exchange of components such that a consistent and efficient MADYMO modelling process is achieved. It helps the super-user in defining the component definitions, the analysis type file and the project file
  • MADYMO/Objective Rating - The objective rating tool provides the user with a means to rate pairs of curves against each other, based on a set of predefined rating criteria and hence provides an immediate overview of how well signals correlate, indicated by colours and values. The user can define a rating matrix and save this as a template that can be reloaded in a later stage, either in GUI or in batch mode.
  • MADYMO/Protocol Rating - The protocol rating tool calculates and presents occupant safety ratings according to different vehicle safety assessment protocols. The tool allows for directly importing input data (injury criteria values) from MADYMO peak file output. Alternatively the user can fill and modify injury criteria and input other values manually
  • MADYMO/Converter - Converter is a flexible foreign-code-to-MADYMO-code converter. Due to the use of Perl as converter language, the converter can be easily enhanced by adding new scripts. The tool has its own GUI and can be used stand-alone and/or in combinationwith XMADgic4.0and onwards.
  • Coupling/Assistant - The Coupling Assistant is introduced to enable users of FE codes as PAM-CRASH, RADIOSS and DYNA to work with MADYMO Dummies and MADYMO models in general. There is no need to know the MADYMO input format as the Coupling Assistant completely hides it from the user.

Product Features

  • Fast & accurate simulations
  • Accurate crash dummy & human body models
  • State-of-the-art restraint system modelling techniques
  • Reliable predictions of safety performance & injury risks
  • Multibody, Finite Element & CFD combined in one code


Application Areas

  • Automotive
  • Aviation
  • Defence
  • Rail
  • Accident Reconstruction


References

  1. ^ Schmitt K-U, Niederer PF, Muser MH, Walz F. Trauma biomechanics: accidental injury in traffic and sports. 2nd Ed. Springer-Verlag Berlin. 2007. ISBN 978-3-540-73872-5.
  2. ^ "MADYMO dummy models beat FE competition in AORC Benchmark".
  3. ^ "MADYMO Reference Manual" (PDF).

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