Design optimisation of linear structures subjected to dynamic random loads with respect to fatigue life

Vibrational Fatigue and Structural Dynamics for Harmonic and Random Loads

“…Recently, several research studies have been done in the area of the vibrational fatigue under a random base-excitation. Pagnacco et al [12] optimised a thickness distribution of a plate structure to prolong the structure's fatigue life when exposed to the random vibration. Furthermore, Paulus and Dasgupta [13] proposed a semi-empirical model for fatigue life estimation for the case of the random vibration load.…”

Methodology for assessing embryonic cracks development in structures under high‐cycle multiaxial random vibrations

“…Therefore, characterizing vibration‐fatigue strength and life is imperative in performing both mechanical design and structural dynamic analysis . In general, the dynamic analysis can efficiently be conducted in the frequency domain, particularly when the vibration loads are random …”

“…5,6 In general, the dynamic analysis can efficiently be conducted in the frequency domain, particularly when the vibration loads are random. [7][8][9][10][11][12][13][14] Designing fatigue-resistant structural components exposed to complex dynamic loads can be challenging. [15][16][17][18][19][20] Thus, estimating the fatigue life in the frequency domain can be advantageous because it is computationally far more efficient than in the time domain.…”

Topology optimization of large-scale structures subjected to stationary random excitation: An efficient optimization procedure integrating pseudo excitation method and mode acceleration method

“…Otherwise, it would be non-stationary. To a large extent, some secondary structure designs were mostly based on stationary random excitations [2] that were greatly considered in the advanced formulations of dynamic optimization problems [3][4][5][6].…”