Abstract
The study is performed to investigate the damping characteristics of the developed vibroprotection system with the double flat spring elastic element. Damping of vertical and horizontal natural oscillations of mass is studied under the change in the external electric field applied to the electrically controllable damping material. It is determined that the logarithmic decrement of vertical natural oscillations increased almost twofold, and the logarithmic decrement of horizontal natural oscillations increased by a factor of 6 with the change of electric field from 0 to 1.2 kV/mm. DOI: http://dx.doi.org/10.5755/j01.mech.24.5.21070
Highlights
Reduction of vibrations may be performed using different methods, depending on the desired dynamic behavior: damping, isolation or stiffening of mechanical systems
The damping of oscillations is effective in the direction of the action of an external shear force in the perpendicular direction to the external electric field strength vector [6,7,8,9,10,11], which does not allow the same effect on simultaneous oscillations in other directions
The aim of this work is the development of damping devise with the elastic element of dual purpose and experimental investigation of its application in a single-mass oscillatory system
Summary
Reduction of vibrations may be performed using different methods, depending on the desired dynamic behavior: damping, isolation or stiffening of mechanical systems. The designs of damping devices for the vibration control and protection systems are actively being developed. Applications of materials with controllable properties enables development of semi-active vibrations control systems. Those devices may work in the modes of pressure flow, shear, compression or combined mode [313]. The use of ECDM in vibroisolation elements (fluid-flow dampers) of various vibroprotection systems can significantly reduce the amplitude of forced oscillations of the protected object and the decay time of its free oscillations. Vibrations control is performed by changing the viscoplasticity of the working fluid in the damper channel for oscillatory systems containing both elastic elements and dampers. The damping of oscillations is effective in the direction of the action of an external shear force in the perpendicular direction to the external electric field strength vector [6,7,8,9,10,11], which does not allow the same effect on simultaneous oscillations in other directions
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
