This paper introduces basic formulas of elastic vibration of conveyor belt and the calculation of its vibration coefficients e. g. cylindrical rigidity and modulus of elasticity.
The study indicates that elastic modulus of the fallen rock in the goaf, the rigidity and setting load of support are the major factors that affect roof behaviour.
研究表明,采空区矸石弹性模数、支架刚度及初阻力是影响顶板动态的主要因素。
3
Fabric Stiffness Tester. To determine the bending height, flexural rigidity and bending modulus of fabric by simple procedures and calculation.