This research paper explores the expression of technological knowledge mobility about design works in the industrial field of architecture projects. Furthermore, the research focuses on design information that is designed by architects and engineers and is based on technological knowledge. This research focus is selected because it represents a typical design process; Japanese technology system tends to be integrated when based on complicated creation process.

The research was conducted using a framework based upon the expression of technological knowledge and responsibility, key elements to make up design information. Strong points and weak points of design team structure are linked with allocation of making drawings, final approval and conclusive responsibility. Finally, this paper tries to develop a description method of the tendency about the relationship among architects and engineers in architecture and construction projects.

In this paper, we develop a butterfly-style flapping robot that has different timings between down and up strokes for posture control, which are based on the flapping characteristics of a butterfly. A butterfly flies upward during the down stroke and forward during the upstroke using posture control. This trajectory resembles a staircase pattern. The flight pattern is influenced by the ratio between the time periods of the down and up strokes during a flapping cycle. To better understand the dynamic effects, we developed a flapping mechanism to mimic this varied stroke timing based on a quick-return mechanism and validated it via motion analysis. A numerical simulation was used to investigate the relation between the ratio of down and up stroke times and posture control of a butterfly. The results showed that the proposed mechanism reproduced observed behavior by incorporating the difference between down and up stroke times for a butterfly-style flapping robot. Furthermore, the simulation indicated that a butterfly tended to fly upward when the down stroke time was longer than that of upstroke, and downward in opposite case.