Cantilever in rapid sketch
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proposed a new composite foundation by adding EMWM layer to a rigid foundation. investigated the vibration reduction of high-temperature pipeline system by adding an EMWM coating layer. īecause of its excellent energy absorption and environmental adaptability, EMWM has triggered numerous research studies in recent decades. Although some researchers prefer to use the term metal rubber (MR) or metal wire mesh, the manufacturing processes of these materials are highly similar, so they are the same kind of material. However, it should be noted that most of the traditional polymer damping materials and adhesive (such as epoxy resin) cannot work normally for a long time in the high-temperature environment, especially over 260☌.Įntangled metallic wire material (EMWM) is a kind of porous damping material made from various metallic wires by coiling, weaving, and molding. It is generally accepted that the damping material used in the form of constrained layer damping treatment is most effective. Passive surface treatment using various polymer damping materials is the most common damping technique. There are different techniques aimed at the vibration reduction of plate-structures. Unlike the multiends clamped structure, the cantilever structure has a large vibration amplitude due to fewer boundary constraints. Cantilever structures are widely used in various fields, such as the wing structure of high-speed flight vehicle. The reduction of structural vibration amplitudes in the mechanical system has currently become a key objective in many industrial sectors to extend the life of components, reduce acoustic radiation, or increase comfort and security. This research is helpful to control the structural vibrations of cantilever structures in high-temperature environments. Adding EMWM core and constraining plate can significantly increase the damping ratio and reduces the vibration of the cantilever structures under different temperatures. The thermal-vibration joint test results indicated that the EMWM core had a positive impact on the damping properties of the cantilever structure. The displacement deviation between the baseplate (steel plate) and constraining plate was sufficient to cause frictional energy dissipation of the EMWM core. A thermal-vibration joint test system was set up to verify the energy dissipation mechanism of the composite structure with EMWM core and to research the effect of vibration reduction under different temperatures. When the temperature exceeds 260☌, the damping property of the EMWM decreases with the increase of temperature. The results show that when the temperature does not exceed 260☌, the damping property of the EMWM is not affected by temperature. The damping performance of the EMWM under different temperatures was investigated. To reduce the vibration of a cantilever steel plate in high-temperature environments (25☌–500☌), a new composite structure with entangled metallic wire material (EMWM) core was proposed.