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dc.titleSolution existence of the optimization problem of truss structures with frequency constraints
dc.contributor.authorTong, W.H.
dc.contributor.authorJiang, J.S.
dc.contributor.authorLiu, G.R.
dc.identifier.citationTong, W.H.,Jiang, J.S.,Liu, G.R. (2000-07). Solution existence of the optimization problem of truss structures with frequency constraints. International Journal of Solids and Structures 37 (30) : 4043-4060. ScholarBank@NUS Repository.
dc.description.abstractA basic theory is presented for determining the solution existence of frequency optimization problems for truss structures. This theory says that the natural frequencies remain unchanged when a truss is modified uniformly and that the natural frequency constraint is usually the key constraint in determining the solution existence of a truss dynamic optimization problem. Based on this theory, a practical method is presented, in which only the first order derivatives of certain eigenvalues with respect to design variables are used to determine whether or not a specific natural frequency constraint is achievable. If there is a solution for a given frequency constraint, a solution existence result can be obtained very quickly using the method. Otherwise, the extreme value of the corresponding natural frequency or a small confined range of design variables which contains the extreme value can be obtained. Numerical examples are presented to illustrate the feasibility and efficiency of the proposed method. © 2000 Elsevier Science Ltd.
dc.subjectFrequency constraints
dc.subjectSolution existence
dc.subjectTruss structures
dc.description.sourcetitleInternational Journal of Solids and Structures
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