Excited response of granular ores in vibrating field

来源期刊：中南大学学报(英文版)2001年第2期

论文作者：LI Jian-hua SUN Ye-zhi WU Ai-xiang CHEN Shou-ru

文章页码：120 - 124

Key words：excitation system; excited response; granular ore; step-by-step integration method

Abstract: The dynamical theory was utilized to probe into the law of the excited response of granular ores generated by the exciting action of exciter and the influence ofwave propagation in vibrating field. The exciter with double axes was presented as an example, and the principle of exciter and its mathematical expression of the excitation force were given. The granular ores have viscidity and damping speciality, on the basis of which the motion equation of excited response of ores was established and the approximate expression of mode-dis-placement by harmonic excitation and the steady effect solution of coordinate response were deduced. Utilizing the step-by-step integration method, the recursion relation matrix of displacement, velocity and acceleration of the excited response of ores were obtained, and the computational flowchart and a computational example were given. The results show that the excited response can change the dynamical character and the flowing characteristic of granular ores.