­¢ The Danjer of Trusting Numerical Simulation

­¢ The Danjer of Trusting Numerical Simulation

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Problems associated with the myth that ¡Èthe numerical simulation is everything¡É

Engineering technologies are more and more specialized with times, and advanced technologies are drawing attention inter alia. And engineers involved in product development and designing are being forced to shorten development and designing times and reduce costs. Consequently, contemporary engineers employed by companies are required to have the capability of making a highly technical decision in a very short period of time.
However, studies of structural engineering (such as material dynamics, structural dynamics, vibration dynamics and fluid dynamics) which are the basis for engineering studies, conducted in collages for the sake of education, place importance on the applications in specialized areas and on educational studies of advanced technologies, and as a result, the number of professional educators teaching conventional, classical and fundamental theories tends to be insufficient, and the education of such fundamental technologies is being replaced by computer simulations (numeric analyses). Under such circumstances, education for engineers to be engaged in structural engineering (particularly in destruction dynamics and anti-fatigue designing), which should be the basis for fundamental knowledge for the ¡Èproduct designing¡É is being neglected these days, and there are many cases where fundamental technologies/techniques are lacking in engineers, and a number of accidents owing to insufficient strength in products and structures due to easy-going numeric simulations are occurring. Such a fact is a big impeding factor for the confidence and quality assurance in manufactured products these years.

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