Articles of The Transactions of KSRC

Built-up composite elastic coupling with enhanced vibration absorption

Full text article

Year	2017
Issue	379
Volume	1
Pages	56-63
Caption	Built-up composite elastic coupling with enhanced vibration absorption
Authors	Lysenko А.P.
Keywords	polymer composite materials, elastic coupling, stressed-strained state, strength, dissipative & stiffness properties
Summary	Object and purpose of research. A built-up polymer composite elastic coupling made of two triple-layer annular membranes connected with an intermediate shaft is considered. The purpose of the study is numerical investigation of how manufacturing and operating factors influence the elastic, dissipative and strength characteristics of the coupling. Subject matter and methods. Approximate algorithms for prediction of dissipative and stiffness properties of the structure based on finite element analysis and the principle of elastic/viscous relationship of the linear viscoelasticity theory. Tsai- Wu failure criterion. Main results. The study examines how dissipative and stiffness characteristics are influenced by the operating temperature, relative variations in thickness of a viscoelastic polymer layer, as well as noncoplanarity of base layer and overlayer of the triple- layer membrane. It is shown that strength calculations of the elastic polymer coupling should take into consideration the combined load application. Conclusion. The obtained results provide for a better informed selection of compounds and reinforcements for elastic polymer composite couplings, featuring significantly higher dissipative properties than existing prototypes.
Rubrics	Naval architecture