鋪厚板 的英文怎麼說
中文拼音 [pūhòubǎn]
鋪厚板
英文
plank-
In 1969 a (51mm) bituminous concrete overlay was placed on the concrete deck.
1969年在混凝土板上鋪設了51mm厚的瀝青混凝土鋪裝層。Thick boards lashed over the chains made the road of the bridge.
鐵索上面鋪了厚木板做橋面。With the material dynamic constitutive equation including damage and the effect of stain rate the predictable formula about ballistic limit velocity of fiber composite target. secondly based on the damage feature about ceramic / fiber composite target caused by impact load, analysis model about defense performance of ceramic / composite material target is formed and the predictable formula about ballistic limit velocity is also given. lastly using the reflection and projectile theory of stress wave the paper discusses the design of ceramic / composite material target, optimizes the design of double layer ceramic / composite targets, gains optimal coefficient under certain area density and discusses the variety relationship of area density and thickness with optimal coefficient u nder some ballistic limit velocity 3
首先,分析了纖維類正交鋪層復合靶板在沖擊載荷作用下的損傷破壞機理,結合包含損傷和應變率效應的材料動態本構方程,建立了纖維復合材料板彈道極限速度的預測公式;其次,根據陶瓷/纖維材料復合靶板在沖擊載荷下的破壞特點,建立了陶瓷/復合材料靶板抗彈性能分析模型,給出了彈道極限速度預測公式;最後,利用應力波反射和透射理論討論了陶瓷/復合材料靶板的設計問題,對雙層陶瓷復合靶板的優化設計進行了分析,給出了在一定面密度下的最佳優化系數,討論了一定彈道極限速度下的面密度和厚度隨優化系數的變化關系。Suspension construction method : use saws to cut the plywood 9 c 12mm thick into square blocks sized between 600 c 120 mm and securely nail them into the concrete ground at an interval of 20 mm
步驟3 :墊層鋪設1懸浮施工法:將9mm - 12mm厚的夾板鋸成600mm - 120mm的方塊間隔20mm釘牢水泥地面。The wuhan university of technology and dongzhou sfrc inc bring forward lsfrc pavement together. lsfrc pavement is a type of new composite pavement by putting certain quantity of steel fiber in the bottom and top of the pavement
該路面是在普通混凝土路面板的底部和頂部一定厚度內撒布一定量的鋼纖維鋪築而成的路面,是一種新的復合路面形式。For laminate containing penetrated crack, " two planes " model is introduced to analyze the influence of repair parameters on the strength of repaired laminate, including such as patch size, patch thickness, patch layout, the location of rivets
摘要針對含穿透性裂紋的損傷層壓板,採用「兩板」模型建立起機械連接修補結構有限元分析模型,分別計算補片大小、厚度、鋪排方式以及連接件位置等修補參數對修補效果的影響。At the same time, this paper point out it is a development direction making use of macromolecule material to develop flexible and inflexible mixed canal lining frame or flexible frame with credible technology, simple configuration and rational price
同時,提出了增加混凝土板下鋪設聚苯乙烯板厚度並進行優化設計的方案,需進一步試驗研究;指出了利用高分子材料研製技術可靠、結構簡單、經濟合理的剛柔混合結構或純柔性結構作為渠道的襯砌結構,是今後渠道襯砌發展的方向。For the laminate which contains a crack, the suggested patch shape is rectangle, the patch thickness is equal to the parent laminate and the patch stacking sequence is the same as the parent laminate. because the length and the width of the patch have the fewer influence on the repair effect, the patch has the least weight on the basis of enough edge distance, end distance and space having been promised
?對于含裂紋復合材料層壓板,長方形補片的長度和寬度對修補效果沒有非常明顯的影響,因此在保證連接邊距、間距和端距的條件下,補片大小的選擇應該以節省重量為原則;而當補片的鋪排順序與母板相同、相對厚度為100時能夠獲得比較好的修補效果。Standard test method for thickness of resilient flooring materials having flat surfaces
表面平坦的彈性地板鋪面材料厚度的測試方法2 the mat ground cushion for using should easy to heat, insulation and difficult to aging
3採用膠合板厚夾板鋪設時,膠合板厚度在9mm以上,膠合板最好用防腐油漆進行防腐處理。6, lay down 0. 5mm to 1mm the thick pe moisture - proof cloth under the wooden plank, all the corners around the wall all should be laid down the integrity
6在木板條上面鋪設0 . 5至1厚的pe防潮布,四周墻腳均應鋪設完整。But it, s on the other hand in foreign countries, hi view of this, a me 1 hod of design of cement concrete pavement based on the poor concrete base was proposed after calculating and comparing with different methods. it adopts the merits and discards the weaknesses of each technique both in theory and in experience. and it will offer a good reference to the construction of cement conorete pavement in future
針對目前國內水泥混凝土路面設計方法側重於理論分析,而國外水泥混凝土路面設計方法側重於實踐經驗的情況,本文分別採用國內外多種水泥混凝土路面及加鋪層設計方法進行計算和對比,充分吸收各種設計方法的理論和經驗,取長補短,互為補充,從而提高了適合以貧混凝土為基層的水泥混凝土路面面板厚度的設計方法,為今後水泥混凝土路面的建設提供了有益的參考。The residual strength of damaged composite laminates and their repaired structures are calculated, and the influence of the repair parameters is discussed by the finite element and program stated above. some useful conclusion can be drawn according to the curves, which show the influence of repair parameters to repair effect. for the laminate which contains a circle hole, the suggested patch shape is circle, the patch size is 2 to 3 times than the diameter of damaged hole, the patch thickness is equal to the parent laminate and the patch stacking sequence is the same as the parent laminate
用所建立的二維有限元模型和編寫的有限元程序計算損傷板及其修補結構的剩餘強度,並分析了修補參數對修補效果的影響;根據本文計算得到的修補參數對修補效果的影響曲線,可以得到如下結論: ?對于含孔復合材料層壓板,當圓形補片與母板鋪排順序相同、直徑為損傷孔直徑2 3倍、相對厚度為100時能夠獲得比較好的修補效果。In upper level optimization, the thickness and geometry factors of composite skins and webs as well as other structural dimensions are taken as design variables. then, considering the behavior constraints and the side constraints, the structural mass is minimized by the mathematical programming technique. in lower level optimization, the mathematical programming technique or the genetic algorithm ( ga ) is used to search the practical stacking sequence of composite skins and webs to realize the given thickness and geometry factors from upper level optimization
底層優化設西北工業大學博士學位論文計以復合材料蒙皮和腹板等層合板各分層的厚度(或鋪層數) 、鋪層角和鋪層順序為設計變量,以層合板的幾何因子與頂層優化設計給出的最優幾何因子之間的誤差最小為目標,考慮層合板厚度和製造工藝性約束,採用數學規劃方法或遺傳演算法( geneticalgorithm ,簡稱ga )求出底層最優設計變量。In sso, the thickness of each stack of the laminate must be integer times as thick as that of single ply, the angle of each stack of the laminate is selected from a set of standard angles, and the stacking sequence can change arbitrarily. when material and ply angles of the laminate are selected, ga is used to giye the optimal laminate that meets the given requirements of thickness and geometry factors
在550中,層合板各分層的厚度必須是單層材料厚度的整數倍,鋪層角取作一些標準的角度,各分層在層合板厚度方向上的相對位置可任意變化,利用ga求出滿足給定厚度和幾何因子要求的層合板最優鋪層結構。A thick, woolen rug cover the floor behind the desk
一塊厚羊毛小地毯鋪在寫字臺面的地板上。A thick, woolen rug covers the floor behind the desk
一塊厚羊毛小地毯鋪在寫字臺後面的地板上。分享友人