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Lecture #3 Trusses and frames. Statically determinate trusses. USE OF TRUSS STRUCTURES IN AVIATION. Junkers F.13, Germany, 1920. 2. USE OF TRUSS STRUCTURES IN AVIATION. truss spar. beam spar. FFVS, Sweden, 1942. 3. USE OF TRUSS STRUCTURES IN AVIATION. Concorde, Europe, 1969.
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Lecture #3 Trusses and frames. Statically determinate trusses
USE OF TRUSS STRUCTURES IN AVIATION Junkers F.13, Germany, 1920 2
USE OF TRUSS STRUCTURES IN AVIATION truss spar beam spar FFVS, Sweden, 1942 3
USE OF TRUSS STRUCTURES IN AVIATION Concorde, Europe, 1969 truss spar beam spar 4
USE OF TRUSS STRUCTURES IN AVIATION Concorde, Europe, 1969 5
USE OF TRUSS STRUCTURES IN AVIATION A300, Europe, 1972 6
USE OF TRUSS STRUCTURES IN AVIATION Zenith CH701, 1986 motor mount frame 7
DIFFERENCE BETWEEN TRUSSES AND FRAMES Connection by riveting, moment-resistant 9
DIFFERENCE BETWEEN TRUSSES AND FRAMES Connection by welding, moment-resistant 10
TOPIC OF THE LECTURE • Methods of forces calculation: • Method of joints • Method of sections • Method of substitution of members • Supplementary tools: • Zero-force member identification • Principle of superposition • Use of symmetry 11
TOPIC OF THE LECTURE And we are starting to use blackboard at last! 12
CONCLUSIONS 13
WHERE TO FIND MORE INFORMATION? Method of joints and method of sections are covered in A. Kassimali. Structural Analysis. 2009, Chapters 4.5 and 4.6 Principle of superposition and method of substitution of members are covered in A. Williams. Structural Analysis In Theory and Practice. 2009, Chapters 1.7, 2.4 … Internet is boundless … 14
TOPIC OF THE NEXT LECTURE Static determinacy. Methods of analysis All materials of our course are available at department website k102.khai.edu 1. Go to the page “Библиотека” 2. Press “Structural Mechanics (lecturer Vakulenko S.V.)” 15