...Hakan Ulker; Eyup Yeter Purpose The primary objective of this paper is to investigate the natural frequency response of basalt/epoxy laminates, Aluminum 2024-T3, aluminum honeycomb and various combinations of these materials. The study aims to compare theoretical and numerical natural frequencies...

...Amir Najibi; Morteza Kianifar; Payman Ghazifard Purpose The authors examined the numerical natural frequency analysis of a 2D functionally graded (FG) truncated thick hollow cone using 3D elasticity theory. Design/methodology/approach The material properties of the 2D-FGM (two dimensional...

...Kang Liu; Yingchun Bai; Shouwen Yao; Shenggang Luan Purpose The purpose of this paper is to develop a topology optimization algorithm considering natural frequencies. Design/methodology/approach To incorporate natural frequency as design criteria of shell-infill structures, two types of design...

...Vishrut Shah; Manish Pamwar; Balbir Sangha; Il Yong Kim Purpose The purpose of this paper is to propose an effective and efficient numerical method that can consider natural frequency in multi-material topology optimization (MMTO) and which is scalable for complex three-dimensional (3D) problems...

... the vibrations of the double-column system is reformulated with Dirac's delta function. Secondly, the exact and explicit mode shape solutions are obtained, based on which the natural frequencies and dynamic responses are obtained. An illustrating example is presented to show the validity of the proposed method...

... slice. The crack in each slice is considered as a uniform one. The transfer matrix method in the literature is used to obtain the beam vibration frequencies and mode shapes. Influences of crack location and sizes on the natural frequencies for the cantilever beam, as well as the mode shapes...

... = w b   ( x ) Dae-Jin Kim can be contacted at: djkim@khu.ac.kr 25 07 2016 05 11 2016 16 11 2016 © Emerald Publishing Limited 2017 Emerald Publishing Limited Licensed re-use rights only Modal analysis Natural frequency Generalized finite element...

... and the possibility of implementing it in a real-time structural health monitoring system for aircraft and civil structures. Originality/value – The methodology presented establishes the PSO as robust and competent tool over GA for crack identification using changes in natural frequencies. Four different...