Modelling of dredging process with vibrating digging bucket under subzero temperatures

International Conference on Mechanical Engineering, Automation and Control Systems 2016

机械制造;无线电电子学;计算机科学

Zenkov, S.A.^1 ; Kobzov, D.Y.^1 ; Balahonov, N.A.^1

Bratsk State University, 40, Makarenko str., Bratsk

665709, Russia^1

关键词: Cohesive force;    Ground friction;    High frequency oscillations;    Sliding resistance;    Sliding surface;    Sub-zero temperatures;    Ultrasonic oscillations;    Vibrating surface;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/177/1/012100/pdf
DOI  :  10.1088/1757-899X/177/1/012100

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

A mathematical model of ground motion on the vibrating surface of the digging bucket under subzero temperature is suggested. High-frequency oscillations influence on the ground sliding resistance force on the surface under subzero temperature is analyzed. This analysis proves that shear strength is defined by the pressure magnitude of ultrasonic waves affecting the ground from the sliding surface and significantly depends on acoustic properties of the ground. The ground sliding resistance force is stated to decrease under the exposure of ultrasonic oscillations mainly due to a decrease of cohesive forces and ground friction on the metal.