超静定桁架在多工况下的满应力设计(Ⅰ)

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Fully Stressed Design of Superstatic Truss with a Multiple Loads (Ⅰ)

摘要: 本文研究无病态杆的超静定桁架的杆数、自由度数和实现满应力的工况数之间的关系.文中不仅修正了R.H.Gallagher等人的结论,而且阐述了对工况性态(数目、大小和方式)的选择条件.指出某些反例恰恰是违背工况选择原则的后果.

Abstract: In this paper, we study the relationship between the number of redundant forces and the number of load conditions in a super-static truss without sick members in order to accomplish fully stressed design.This paper will not only improve the conclusion given by R. H. Gallagher et al., but also clarify the choice of load conditions (number, magnitude and form). Moreover,it will explain that some counter-examples in literatures are invalid.

[1]	Gellatly,R.A.and R.H.Gallagher,Aeronautical Quart.XVII,(August,1966).
[2]	Wright,P.M.and C.C.Feng,Trans.Engrg.Inst.of Canada,(1971).
[3]	Spillers,W.R.and John Farrell.,J.Math,and Appl.,25,No.2,(1969).
[4]	Barnett,R.L and P.C.Herrmann,NASACR-1038,(May,1968).
[5]	Owen,J.B.B.,The Analysis and Design of Light Structures,Arnold,London,(1965).
[6]	胡定钟,吉林大学自然科学学报,(1979).
[7]	胡守信,吉林大学自然科学学报,(1981).
[8]	Traum,E.and W.Zalewski,Civil Engrg.Magz.July.(1968).
[9]	Dayaratnam,P.and S.Patniak,AIAA.J.,7,April,(1969).
[10]	Patniak S.and P.Dayaratnam,Int.J.Num.Methods Engrg.,2,(1970).
[11]	Gallagher,R.H.and O.C.Zienkiewicz,Optimum Structural Design Theory and Application,London,New York,Sydney,Toronto,(1973).
[12]	冯元生,教育部高等学校1978年计算结构力学学术交流会论文集Ⅱ
[13]	李炳威,《结构的优化设计》,科学出版社(1979)
[14]	Aoki,M.,Introduction to Optimization Techniques,Macmillan Company,New York,(1971).

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