The discussion focuses on determining the axial forces in truss members BC, BD, and BE as part of an airplane's internal structure. Participants emphasize the importance of first calculating support reactions and identifying zero force members before applying the method of joints or sections. The consensus is to cut the truss along members CE and BD to effectively sum moments and solve for the unknown forces. This structured approach ensures accurate calculations of axial forces in the specified members.
PREREQUISITESEngineering students, structural analysts, and professionals involved in truss design and analysis, particularly those focused on aircraft structural integrity.
You should first determine the force reactions and zero force members before cutting sections. Then, if you prefer the method of sections over the method of joints, you can do the cut as you described and sum moments about appropriate points in the appropriate free body diagram, to solve for the unknown forces in members BE and BD.Isimanica said: