Performance evaluation system in engineering matters:Systematic and theoretical approach to humanity

Tatsumasa Takaku


As the systematic approach to engineering matters, the performance evaluation system is proposed and examined theoretically by using the mathematical model. The systematic andtheoretical approach to humanity is described. In the long history of human activity, engineering, culture, tradition, customs, life style, language have been formed gradually based upon politics, economics, natural and social environments. In usual, facility (F) behaves and performs a certain interaction (I) under some environments (E). This general phenomenon (physics/chemistry) is due to nature law and also applied to  general social phenomenon and human activity. Above F,E,I are considered to be primary elements of the basic system V(F,E,I).The performance of V(F,E,I) is evaluated as a result of phenomenon. As the rating index (p), five elements are defined: time(t), space(x),money(m), humanity(h), quality(q).The basic system V(F,E,I) is expressed in form of V(t,x,m,h,q) because of having the rating index built-in. The performance evaluation system is formulated by the mathematical model (partial differentiation form )of    δV(F,E,I)/ δp.

By using a model of the existing bridge, the basic systemV(F,E,I) of steel bridge   and theirperformance evaluation are simulated by the mathematical model.   Facility F, environment E and interaction I elements of the basic system V(F,E,I) of the steel bridge are organized and  each hierarchy is built in detail. They are closely related to the description/articles of the specification in edit and design use. The methodology of constitution and systematization of the specification is proposed. The sample bridge has been awarded as one of the best bridge of the year by JSCE in 2012.                                                The performance evaluation clarifies why it is worthwhile and selected.                                                                                                                                                     Systematic approach to engineering matters and humanity are discussed. As the two-dimensional(X,Y)problem, the expression method of  block diagram is described. The X-Y axes should be orthogonally designated by independent phenomenon each other. Based upon the nature law, Pareto distribution and the potential energy reserved theory, three problems are examined; 1)Risk management, regional disasters control, 2)Fracture/fatigue problems of the shear panel dampers and 3) The PM (performance/maintenance) theory of human activity.

Keywords: performance evaluation system, rating index, primary/secondary evaluation, bridge system, nature law, potential energy reserved theory


performance evaluation system,rating index,primary/secondary evaluation,bridge system,nature law,potential energy reserved theory

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