锁边圆管带式输送机运转理论分析

在理论分析的基础上，介绍了锁边圆管带式输送机的工作原理、布置方式、带芯材料的选择、散料不会从下部流出等一系列特殊问题，同时分析了锁边器啮合力、凸凹曲线段的张力、阻力计算等，并给出了系统布置参数的确定方法．锁边圆管带式输送机可用于任意倾角的提升，它的运输能力远大于波纹挡边带横隔板带式输送机和夹带带式输送机．

Forced Axial and Torsional Vibrations of a Shaft Line Using the Transfer Matrix Method Related to Solution Coefficients

This present paper deals with a mathematical description of linear axial and torsional vibrations. The normal and tangential stress tensor components produced by axial-torsional deformations and vibrations in the propeller and intermediate shafts, under the influence of propeller-induced static and variable hydrodynamic excitations are also studied. The transfer matrix method related to the constant coefficients of differential equation solutions is used. The advantage of the latter as compared with a well-known method of transfer matrix associated with state vector is the possibility of reducing the number of multiplied matrices when adjacent shaft segments have the same material properties and diameters. The results show that there is no risk of buckling and confirm that the strength of the shaft line depends on the value of the static tangential stresses which is the most important component of the stress tensor.