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Contribution to Mass Minimizing of the Shell Structures Subjected to Cumulative Damage

Saga M., Dekys V., Vasko M., Malcho M.

Machine Dynamics Problems

2006

Vol. 30, No. 4

103-111

Our paper deals with structural optimizing by new discrete searching technique. The goal is to find the best discrete optimizing parameters subjected to mass minimizing and multiaxial fatigue damage. Equivalent stress for using biaxial problem and rainflow decomposition is calculated by so called integral approach. The necessary coefficients in this process are found by using special optimization way.

Mass Minimising of Truss Structures Subjected to Prescribe Fatigue Life

Sága M.

Machine Dynamics Problems

2004

Vol. 28, No. 4

101-106

The paper presents the application of the discrete optimisation of truss structures subjected to prescibed fatigue life. It was considered the solution of the linear truss or frame mechanical systems under random excitation and rainflow decomposition of the stress response in time domain and the application of Rajchers computational way for problems analysed in freguency domain. The using optimising approach was realised by the solution program OPTIM_FAT.