On damping of screw dislocation bending vibrations in dissipative crystal: limiting cases

International Conference on Mechanical Engineering, Automation and Control Systems 2017

机械制造;无线电电子学;计算机科学

Dezhin, V.V.^1

Voronezh State Technical University, Moskovsky Prospect 14, Voronezh

394026, Russia^1

关键词: Arbitrary frequencies;    Bending vibrations;    Drag mechanisms;    External action;    Limiting case;    Long waves;    Low-frequency;    Short waves;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/327/3/032017/pdf
DOI  :  10.1088/1757-899X/327/3/032017

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The expression for the generalized susceptibility of the dislocation obtained earlier was used. The electronic drag mechanism of dislocations is considered. The study of small dislocation oscillations was limited. The contribution of the attenuation of low-frequency bending screw dislocation vibrations to the overall coefficient of dynamic dislocation drag in the long-wave and short-wave limits is calculated. The damping of short-wave bending screw dislocation vibrations caused by an external action of an arbitrary frequency has been investigated. The contribution of long-wave bending screw dislocation vibrations damping in the total drag coefficient at an arbitrary frequency is found.