摘要
将在连续介质中传播的横波作为研究对象,以介质中的质元受力分析与形变分析为切入点,根据牛顿运动定律、连续性假设和广义胡克定律等弹性力学理论,在微小形变假设、无初应力假设、各向同性假设、均匀假设条件下,注重动因分析和动态图像分析,揭示了在连续介质中横波传播能量的本质特征与基本规律.
Starting with the analysis of the force and deformation of an infinitesimal mass and based on the fundamental theories of elastic mechanics such as the Newton law,continuous hypothesis and extensive Hooke law,we study the problem of energy transfer of transverse wave in a continuous media. Under the conditions of the minute reform hypothesis,no initial stress hypothesis, uniform and isotropic medium hypothesis, we analyze the prompting factor and dynamical image and show the essential character and elementary law of energy transfer of transverse wave.
出处
《大学物理》
北大核心
2008年第9期19-21,共3页
College Physics
关键词
简谐波
横波
弹性介质
切应力
切变模量
harmonic wave
transverse wave
elastic medium
sharing stress
shearing modulus