著者

平野 智之 NGOC Pham Hieu 長谷川 浩志

出版者

一般社団法人日本機械学会

雑誌

最適化シンポジウム講演論文集

巻号頁・発行日

vol.2010, no.9, pp."301-1"-"301-2", 2010-12-09

---

In recent years, many researches of the biped robot for living side-by-side with people are reported. However, although many researches on a walking situation are reported, there is little research on the running situation. Therefore, we optimize the foot orbit of a biped robot using APGA (Adaptive Plan system with Genetic Algorithm). This optimization problem is tried by maximization of a reaching distance in the limit time, and its result is reported.

著者

成田 吉弘

出版者

一般社団法人 日本機械学会

雑誌

最適化シンポジウム講演論文集

巻号頁・発行日

vol.2000, pp.229-234, 2000

---

A new multi-objective design approach is proposed for handling many different objective functions in the design problem of laminated composite plates. First, a number of various vibration and buckling eigenvalues are calculated for some discretized fiber angles of the plate by the Ritz method. These eigenvalues are taken to be the object functions. The second step is based on statistical treatment of the data. For each object function, the calculated eigenvalues for different fiber angles are normalized by the maximum value and then the deviated values are determined on the assumption that the eigenvalues are sujected to the Gaussian distribution with the standard deviation of 10 and average of 50. The optimal fiber angle, within the discretized values of fiber angles, is determined by examining the sum of the deviated values of all the object functions.

著者

多田 幸生 小田 康正

出版者

一般社団法人日本機械学会

雑誌

最適化シンポジウム講演論文集

巻号頁・発行日

vol.2002, no.5, pp.25-30, 2002-10-04

---

As there are many elements to be treated at the same time in an optimum posture determination of an adaptive truss structure composed of some truss modules with variable-length members, it is difficult to solve it due to the existence of many local optimum solutions especially when not only the direction of the load but also the position of the load are constrained. So in this study, we consider the problem that determines an optimum posture of an adaptive truss structure taking account of buckling of truss members by using Immune Algorithm (IA) by which we can examine some local optimum solutions and have a high possibility for obtaining the global optimum solution.