Series of screen - bohou adopt large amplitudes , big intensity of vibrations , flexible screen surfaces , the motion parameters characteristics of adjustable amplitudes ; the unique structural features of " board of screen active , box inactive , unattached vibration of the screen surface " ; though segmented , multi - segments of screen surface jointed , large - scale of screen equipments can be realized , the advantages of large area , big handling capacity and no special requirements to the water of materials make the screen to be the best screen equipments used for the small wet materials 簡介:博后篩系列采用大振幅、大振動強度、彈性篩面、振幅可調的運動參數(shù)特點;及獨特的“篩板振動、篩箱不振動、各段篩面獨立振動”的結構特點;經(jīng)分段、多段篩面組合,實現(xiàn)了篩分設備大型化,大面積、大處理能力的優(yōu)勢及對物料水分的無特殊要求,是潮濕細粒難篩物料的最佳篩分設備。
On the assumption that the framed tower can be represented by multi - segment cantilever carrying a spring support , a mathematical expression to determine the natural frequencies of a framed tower is obtained by using the equation of the transverse vibration for the analytical model of elastic continuous body and the method of numerical solution 摘要框架和塔連接后可簡化為一個彈性支承的系統(tǒng),利用彈性連續(xù)體分析法求解振動方程,推導出了計算框架塔自振頻率的理論公式。
By means of comparing with general and traditional enterprise systems the text summarizes three main characteristics or the creativity of the sharing system of the shanxi merchants firstly . those are as follow : the average division in the form of organizing capital and allocating revenues , multi - segment of property rights of enterprise , the administrative multi - level of the structure of the organization 通過與一般傳統(tǒng)企業(yè)制度相比較,本文首先總結出晉商股份制的三個主要特點或創(chuàng)新之處,即:資本組織和收益分配形式上的股份化,企業(yè)產權的多層次、多重分割,組織結構的層級化。
So the integrality of the analytical resolution was preserved in term of the single parameter and the multi - parameters when the pipelines - soil system ' s parameters change with the space and time under dynamical loads . continuous multi - segment beam model is the other method of the common used model on the study of the pipelines . during the sixth chapter , such simplified model was adapted for the pipelines under dynamical traffic loads 文中還將受交通荷載作用下的管道簡化為多跨連續(xù)梁受力模型進行研究,應用結構力學方法分析了簡諧交通荷載下管道受力響應的特征;并考慮參數(shù)變化的隨機性,采用了攝動理論對管-土參變系統(tǒng)進行了其響應的概率特征描述,提出了簡便的分析方法。