Basic Research on Shape Generation and Control of Spatial Structures

空间结构形状生成与控制基础研究

基本信息

批准号：
06452285
负责人：
HANGAI Yasuhiko
金额：
$ 4.67万
依托单位：
Institute of Industrial Science, University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1994
资助国家：
日本
起止时间：
1994 至 1995
项目状态：
已结题

项目摘要

In the spatial structures, shapeplays an important role about the load carrying capacity, In this research, the following three items were investigated :1. Theoretical Studies on the Shape GenerationBasic equations for the structural analysis are equlibrium equation, compatibly equation and constitute equation. Based on these equations, shape analysis such as (1) shape analysis of unstable strncture, (2) shape analysis of structure with self-equilibrium strss state, (3) shape analysis with constraint condition of stress, (4) shape analysis of structure with prescribed displacement mode, and (5) shape analysis of structure in the vicinity of critical point are theoretically formulated and analytical methods for these shape analysis are presented.2. Application of the Theoretical Studies to the Structural Design of a Hybrid StructureA new type of structure which is consisted of both truss members and rigid structure is proposed. To estimate the structural behaviors, the following items are theoretically studied (1) classification of stable and unstable hybrid structures, (2) stabilization process of unstable hybrid structure, (3) existence condition of pre-stress, (4) stabilization of the introduction of pre-stress and (5) analytical method for stress and displacement.3.Theoretical Studies on the Shape ControlFor static and dynamic systems, shape onutrol structure can be defined as shape of structure is controlled by actuators, etc. in order to satisfy the prescribed shape condition. The present research presents an arrangement theory of actuators, numerical analysis of shape control structures due to the static and the dynamic loads.

在空间结构中，Shapeplays在载荷能力方面起着重要作用，在这项研究中，研究了以下三项：1。关于结构分析的形状生成层方程的理论研究是equlibrium方程，兼容方程并构成方程。基于这些方程式，形状分析，例如（1）不稳定strncture的形状分析，（2）具有自平衡性strs态的结构的形状分析，（3）形状分析具有压力约束的形状分析，（4）结构的形状分析通过规定的位移模式，（5）临界点附近结构的形状分析是理论上的，并且对这些形状分析进行了分析方法。2。提出了理论研究在混合结构的结构设计中的应用，该结构由桁架成员和刚性结构组成。为了估计结构行为，理论上研究了以下项目（1）稳定且不稳定的混合结构的分类，（2）不稳定混合结构的稳定过程，（3）预压力的存在条件，（4）引言稳定预应力和（5）压力和位移的分析方法。3。对静态和动态系统形状控制的理论研究，可以将形状的肿瘤结构定义为结构的形状，由执行器等控制。规定的形状条件。本研究提出了执行器的布置理论，由于静态和动态载荷而导致形状控制结构的数值分析。