000021303 001__ 21303
000021303 005__ 20170522124348.0
000021303 04107 $$aeng
000021303 046__ $$k2017-05-15
000021303 100__ $$aGołębiowska, I.
000021303 24500 $$aMECHANICAL DAMPERS ON OVERHEAD POWER LINES

000021303 24630 $$n23.$$pEngineering Mechanics 2017
000021303 260__ $$bBrno University of Technology, Institute of Solid Mechanics, Mechatronics and Biomechanics, Brno
000021303 506__ $$arestricted
000021303 520__ $$2eng$$aConductors constitute important components of overhead power lines. They are characterised by low internal damping, low rigidity and low weight. Thus, they can reach high amplitudes of wind induced vibrations. As a result of such vibrations, conductors are subject to variable dynamic stresses which determine the durability of a power line. Limiting possible damage caused by wind is crucial, not only due to safety of the structure, but also for economic reasons. This paper briefly describes basic types of conductor vibration excitations caused by wind. Such aerodynamic phenomena as vortex excitation, galloping and wake induced vibrations, and selected mechanical dampers used on overhead power lines are presented.

000021303 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021303 653__ $$aMechanical dampers, Vibration of conductors, Control of vibration.

000021303 7112_ $$aEngineering Mechanics 2017$$cSvratka, CZ$$d2017-05-15 / 2017-05-18$$gEM2017
000021303 720__ $$aGołębiowska, I.$$iUsewicz, B.$$iDutkiewicz, M.
000021303 8560_ $$ffischerc@itam.cas.cz
000021303 8564_ $$s742419$$uhttps://invenio.itam.cas.cz/record/21303/files/0354.pdf$$yOriginal version of the author's contribution in proceedings, page 354, section DYN.
000021303 962__ $$r21225
000021303 980__ $$aPAPER