2009-08-012024-05-15https://scholars.lib.ntu.edu.tw/handle/123456789/662985摘要：在固體動態波傳中所儲存的能量主要可分為機械變形動能及熱能，如何以一種理論解析的架構來模擬分析同時涵蓋這兩種型式的能量將是一個具有挑戰性的研究課題，這種解析的架構將可深入且詳細了解不同型式的能量彼此間的轉換以及重新分佈的機制和過程。 本國際合作研究計畫（台俄雙邊共同合作研究計畫）主要以理論探討具有流變及功能性材料中能量的傳輸，以及不同型式的能量彼此交換的幾個基本問題，在本計畫中亦將開發實驗的量測技術，可用來量測固體的位移、應變以及溫度的動態反應，並與理論解析的結果作相互的比較與分析。 本國際合作計畫就此研究方向擬定了五個重要的研究課題，並分別由雙方負責執行。 (I) 發展一套兩段模型來模擬具有複雜流變特性的固體（俄國團隊）。 (II) 任意分部之非均質固體的應力波傳研究（俄國團隊）。 (III) 以連續及離散分析方式探討固體中之波傳問題（俄國團隊）。 (IV) 探討應力波在非均質壓電材料之暫態波傳問題（台灣團隊）。 (V) 建立動態位移、應變以及溫度實驗量測技術（台灣團隊）。 附註： 本國際合作研究計畫台俄雙方的主要研究人員都有極優的學術聲望，俄國方面的主持人為聖彼得堡大學彈性力學系的系主任Morozov教授(Head of the Elasticity Department of the St. Petersburg State University)，他亦為俄國科學院的院士(active member of the Russian Academy of Sciences)。另外兩位協同研究人員則分別為俄國科學院機械工程研究所的所長Indeitsev教授(Director of the Institute of Problems in Mechanical Engineering of the Russian Academy of Sciences)及副所長Belyaev教授(Vice-Director)，而台灣方面的主持人馬劍清教授為台大的終身特聘教授。 <br> Abstract: In the mechanics of solids, the energy is conventionally divided into mechanical (acoustic) one and thermal one. Thus, the challenging problems of modeling and simulation of both forms of energy in the framework of the same approach should shed light on the mechanism of energy exchange and redistribution between these forms. In order to have a confidence in the future results we suggest a benchmark study of several approaches to the problem of the energy transport in solids and the energy exchange between different forms of energy. The project is directed to solving the fundamental problem of energy transport in solids with certain rheological and functional properties and energy exchange between the different forms of energy. Some experimental techniques are developed and used to measure the dynamic responses of mechanical and thermal quantities and compare with the theoretical results. This joint project will focus on several directions of investigations, namely, (i) development of a mechanical two-component model of complex rheology, (ii) waves in randomly heterogeneous elastic medium (iii) continuum and discrete approaches of wave propagation in elastic medium, (iv) wave propagation in non-homogeneous piezoelastic medium, (v) establishing experimental techniques for dynamic displacement, strain and temperature measurements. Finally, as a general conclusion to the project we intend to carry out the interpretation and comparison of the results obtained in the framework of each direction. They will be compared with each other with the strategic goal of exposing the general features of the process of energy exchange between the different forms of energy from a perspective of each approach. The experimental techniques established in the fifth direction will be used to perform the experimental measurements and compared with the theoretical computations provided in the first to fourth directions.能量彼此交換應力波傳壓電材料energy exchangewave propagationpiezoelastic medium