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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Thermoelastic damping ： ウィキペディア英語版 Thermoelastic damping Thermoelastic damping is a source of intrinsic material damping due to thermoelasticity present in almost all materials. As the name thermoelastic suggests, it describes the coupling between the elastic field in the structure caused by deformation and the temperature field. == Definition == In any vibrating structure, the strain field causes a change in the internal energy such that compressed region becomes hotter (assuming a positive coefficient of thermal expansion) and extended region becomes cooler. The mechanism responsible for thermoelastic damping is the resulting lack of thermal equilibrium between various parts of the vibrating structure. Energy is dissipated when irreversible heat flow driven by the temperature gradient occurs. The earliest study of thermoelastic damping can be found in Zener’s classical work,〔C. Zener, 1937, “Internal friction in solids, I. Theory of internal friction in reeds,” ''Phys. Rev.'', Vol. 52, pp. 230-235.〕〔C. Zener, 1938, “Internal friction in solids, II. General theory of thermoelastic internal friction,” ''Phys. Rev.'', Vol. 53, pp. 90-99.〕 in 1937, in which he studied thermoelastic damping in beams undergoing flexural vibrations. Flexural vibrations cause alternating tensile and compressive strains to build up on opposite sides of the neutral axis leading to a thermal imbalance. Irreversible heat flow which is driven by the temperature gradient causes vibrational energy to be dissipated. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Thermoelastic damping」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.