Abstract
In this study, the dynamic stability of a laminated composite curved beam with a suspended mass-spring system is investigated. The composite curved beam is considered as a uniform cross-sectional area Euler-Bernoulli beam and effective flexibility module is utilized. The curved beam model is obtained by using the Bolotin approach and the finite element model based on energy equations. The natural frequencies of the composite curved beam obtained with a finite element code developed in MATLAB are compared with the results of ANSYS model. It is found that the results are very good agreement. The effects of the number and position of the suspended mass-spring system on the instability regions of the beam are surveyed considered that also dynamic load parameter and static load parameter for different fiber orientation angles of the layered composite curved beam. The dynamic stability regions of both types of the curved beam with and without suspended spring-mass system are presented in figures.
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