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- Construction of Conic Cooling Tower Concrete Cylinder Wall 雙曲線冷卻塔砼筒壁施工
- This paper introduces the production technology and the characteristics of prestressed concrete cylinder pipe(PCCP). 本文介紹了預應力鋼筒混凝土管(PCCP)的生產工藝及其特性。
- It is equipped with piston rings to provide a good seal between the cylinder wall and piston. 上面裝有活塞環,從而使活塞和氣缸壁之間具有良好的密封性。
- Based on the VOIGT REUSS model,stress changes of crack phase of reinforced concrete cylinder silo was analysed in the paper. 在VOIGT-REUSS模型的基礎上,建立鋼筋混凝土糧食筒倉壁開裂狀態下的應力應變關係。
- The adjusting mechanism of the frictional resistance between the filler and cylinder wall,and between the subsoil and cylinder wall is discussed. 採用模型試驗,以實測筒內、外土壓力和筒底壓力為依據,探討內填料和地基土與圓筒筒壁間摩阻力的調整及其變化規律。
- Considered the diffusion of liquid in the cylinder wall, an equivalent constitutive equation of osteon in the longitudinal direction was obtained. 並考慮了液體在筒壁內的擴散,從而得到了骨單元沿軸向的等效本構方程。
- The composition and working principles of an acoustic fiber optic monitoring system adopted to forewarn the failure of PCCP (Prestressed Concrete Cylinder Pipe) are described. 摘要介紹了用於PCCP爆管預警的光纖聲監測系統組成及原理。
- Parks J,Armfield J,Storey J,et al.In Situ Measurement ofFuel Absorption into the Cylinder Wall Oil Film During EngineCold Start[C].SAE Paper,No.981054. 劉聖華;趙慧;周龍保;李繼軍.;缸套壁面潤滑油膜其對汽油機未燃碳氫排放影響的研究[J]
- Traditionally,the seal between the regenerator and cylinder wall has been accomplished using sliding bearings,but there was contact and wear in the bearings. 傳統的回熱器使用接觸式滑動密封,存在磨損,限制制冷機的使用壽命。
- At the beginning stage of pumping, the piston compresses the concrete mixture, the pressure in concrete cylinder increases rapidly and the air in concrete mixture is compacted and excluded. 在泵送開始階段,活塞壓縮混凝土拌和物,混凝土缸壓力在很短的時間內迅速上升,此時混凝土拌和物中的空氣得到壓實和排出;
- The piston is essentially a cylindrical plug that moves up and down in the engine cylinder. It is equipped with piston rings to provide a good seal between the cylinder wall and piston. 實質上活塞是一個在氣缸中上下移動的圓筒狀的塞子。上面裝有活塞環,從而使活塞和氣缸壁之間具有良好的密封性。
- Even slight traces of grit or dust left on the cylinder walls may cause rapid ring and wall wear and early engine failure. 殘留在氣缸壁上的砂礫或塵埃所造成的划痕,均能引起活塞環和氣缸壁的迅速磨損以及發動機的早期損壞。
- New API specification PC- 9 test methods Cummins M - 11 /EGR and Mack T - 10 evaluate anti - wear performance of high soot level diesel engine oil on the position of engine such as cylinder wall,cross head, rocker and top piston ring. API推出了相應的標準發動機台架評定方法Cummins M-11/EGR及Mack T-10,用於評價PC-9規格的柴油機油在高煙炱的操作條件下在缸套、十字頭、搖臂和頂環部位的抗磨損性能。
- However, in some small engines, the cylinder walls are plated with chromium, a very hard metal, to reduce wall wear and lengthen their life. 而對於一些小型發動機,氣缸壁面鍍鉻,鉻是一種硬度非常高的金屬,可減少氣缸壁的磨損並延長使用壽命。
- To combine the X-ray diffraction technology with the autofrettage optimum model theory, the computer program gives the distribution of the residual stresses across the cylinder wall thichness. 結合已經試驗驗證的自增強優選模型理論和X射線衍射技術,再利用相應的計算程序,實現了自增強殘餘應力的無損檢測。
- prestressed concrete cylinder pressure pipe 預應力鋼筒混凝土管材(PCA3P)
- PCCP (prestressed concrete cylinder pipe) PCCP管道
- Shape optimization was used to optimize the thickness of the cylinder wall, taking mass reduction as the objective and the maximum stress being below the original one as the constraint. 應用形狀優化對曲軸箱兩側壁面的厚度進行優化,以減重為優化目標,以最大應力不超過原缸體應力為約束條件。
- G. Wu, Z.T. Lv, Z.S. Wu , Strength and Ductility of Concrete Cylinders Confined with FRP Composites, ( Submitted to Journal of Construction and Building Materials). 趙海東,趙鳴等,碳纖維布加固鋼筋混凝土圓柱的軸心受壓試驗研究,建築結構,2000,30(7),26-30。
- In this paper,the stress states in ironing are described;the tensile stress formulaeof the cylinder wall are obtained by using upperbound method;and a new ultimate deforma-tion is presented. 本文分析了變薄拉深中材料的應力狀態,並採用上限法導出了筒壁拉應力解析式,提出了一種新的極限變形率。