Based on load transferring concept , the author puts up with a new method which uses double broken line model to calculate negative friction 本文基于荷載傳遞函數(shù)的概念,提出了一種用雙折線模型來(lái)計(jì)算負(fù)摩阻力的新方法。
" the contactors feature silver cadmium oxide , double break contacts to assure a long electrical life , high weld resistance and excellent interrupting capacity . 這種接觸器采用銀氧化鎘材料,雙斷接點(diǎn),有利于保證較長(zhǎng)的電氣壽命、較高的抗焊接性能和杰出的斷開容量。
Shao xing county fine machinery manufacture co . , ltd . ( the former shao xing county automobile brake factory ) professionally manufacture construction machinery , air boost , vacuum booster and spring break actuator for forklift truck , automobile and tractor , air pressure or hydraulic pressure , single or double break , master or subsection cylinder , footplate , tracked assembly , and so on 紹興縣精致機(jī)械制造有限公司(原紹興縣汽車制動(dòng)器廠)專業(yè)生產(chǎn)工程機(jī)械、叉車、汽車、拖拉機(jī)空氣加力器、真空助力器、彈簧制動(dòng)室、離合助力器、汽壓、液壓、單、雙管路制動(dòng)、離合總泵、分泵和踏板支架總成等。
The author utilizes double broken line model to show relation between friction and displacement around the pile . the article establishes equation about friction and relative displacement according to elastic or plastic condition that soil around or in the tip of the pile lies in . then we use continuous and border conditions to determine relative displacement 作者用雙折線硬化模型來(lái)表示樁側(cè)摩阻力與樁土相對(duì)位移的關(guān)系,并根據(jù)樁側(cè)土與樁尖土處于不同的彈性和塑性狀態(tài),建立樁身軸向力和樁土相對(duì)位移的微分方程,利用連續(xù)和邊界條件可解出相對(duì)位移,然后再根據(jù)相對(duì)位移又解出樁軸向力和負(fù)摩阻力。