frusta 中文意思是什麼

frusta 解釋
frustum 的復數。

  1. And results are : ( 1 ) analyze the force and distortion on pipeline under collapse and gulch in theory. on the base of beam deformation, analyze the bending moment and deformation of pipeline with frusta and without frusta. calculate a true problem, contrast the differences between pipeline with frusta and one without frusta, draw some conclusions

    得到的主要結果為： （ 1 ）基於彈性地基理論和彈性梁的撓曲線理論，給出了管道在固定墩（相當跨越河溝情況）和無固定墩（相當坍塌和沖溝情況）的變形微分方程，並分析了當量軸力為拉力或壓力時管道的變形和受力情況。
  2. Two numerating methods are used in traditional structural design of gate chamber. first, considering the gate frusta to be fastened on the weir body, it is calculated as plane stress problem independently. then applying the results ( moment and vertical force ) on the bottom of gate frusta as concentrating load on the weir body, and the weir body is viewed as a elastic foundation beam or plate and unilateral stress analysis was performed

    傳統閘室結構計算有兩種計算方法，其一是將閘墩視為固端于堰體上，單獨進行閘墩平面受力計算，再將閘墩下部的計算結果（彎矩和垂直力）作為集中荷載作用於堰體上，堰體作為彈性地基梁或板進行片面應力計算。
  3. Traditionally, loads of the arc gate are applied on the support or gate frusta as a set of concentrated load, but the effect range of such load on the frusta cannot be solved by material mechanics and structure mechanics. most of the load cases are fulfilled through optic - elastic test

    通常弧門荷載作為一組集中荷載作用於牛腿或閘墩上，而這組荷載對閘墩受力的影響范圍材料力學方法和結構力學方法是不能解決的，受力狀況大部分是通過光彈試驗完成。
  4. The result show that the position of free surface is higher because of frusta of brake, especial obvious in the head of frusta of brake ; flux coefficient and pressure on dam are quite influenced by type of frusta and 3 a type frusta of brake relative to 2 type frusta of brake has bigger flux coefficient and smaller pressure on dam ; obvious influence of ability of discharge flow for different ratio of thickness of frusta and breadth of brake and pressure on dam reduces with increasing ration of thickness of frusta and breadth of brake, while bigger flux coefficient is obtained when tlb = 0. 2

    結果表明，閘墩河海大學博士論文的存在抬高了水面線的位置，其中在閘墩頭部尤其明顯;墩型對流量系數和壩面壓力影響較大， 3a型閘墩相對於2型閘墩具有更大的流量系數和更小的壩面壓力:不同的墩厚閘寬比t / b對泄流能力也將產生顯著的影響，隨著墩厚閘寬比的增加，壩面壓力降低，而當t / b二0 . 2時溢流壩具有更大的流量系數。
  5. On the process of simulation the deformation after excavation at the middle frusta and the vertical slope at three gorges permanent shiplock, program the fortran procedure to perfect model creation and the capability of the pre - procedure and post - procedure in flac - 3d

    在模擬三峽永久船閘中隔墩和直立邊墻開挖卸荷變形過程中，編制fortran程序，完善flac - 3d建模功能和增強其前後處理能力。
  6. The surrounding rock mass of the tgp shiplocks is jointed rock mass cut by well - developed discontinuous joints. the middle frusta and vertical border wall are the important components of the lock room construction. its deformability and stability will directly affect the construction function and using security

    永久船閘區巖體屬於一種斷續節理切割的裂隙巖體，中隔墩和直立邊墻是閘室結構的重要組成部分，其變形大小和穩定程度將直接影響三峽航道的結構功能和運行安全。
  7. Shankou spillway project has many specific characteristics, for example, the gate frusta and weir body have equivalent thickness, the weir body is low and have corridor, the foundation of the weir body is " high - low foot " " and the side frusta is also used as retain wall. in view of the characteristics, to better analyze the stress distribution on weir body, gate frusta, the joints between gate chamber and weir body, under the condition that the gate chamber is applied with asymmetrical loads and complicated constraints, three dimensional finite element method is applied in this paper

    本文針對山口溢洪道閘墩與堰體底板厚度相當，堰體為低堰且設有廊道、堰體建基面「高低腳」及邊墩兼作擋土墻等具體特點，在閘室設計中采山口水利樞紐工程溢洪道閘室三維有限元整體應力計算分析用三維有限元整體應力計算方法分析閘室的受力狀態，分析閘室在荷載不對稱。
  8. Due to the complexity of the load combinations of the gate chamber, it is difficult to perform such test on each load case. on the other hand, it is lack of the test data on the load case perpendicular to the current direction of the gate frusta till now

    由於閘室的受力荷載組合較為復雜，對每種工況都做光彈試驗不容易做到，且有關垂直水流方向的閘墩受力狀況的試驗資料迄今尚很缺乏。
  9. By finding the big penetrating crack in wangpu aqueduct upper frusta structure, the task group has adopted the integrated measures of chemical perfusion, carbonized fibre reinforcement and doping external surfaces to effectively reinforce the work, and improved the reinforcing techniques considering the characteristic of hydraulic engineering, made remarkable benefit in social, economic aspects

    摘要針對王鋪渡槽上部墩柱結構出現的大開度貫穿性裂縫，經過全面分析和多方案綜合對比，採用裂縫化灌、碳纖維加固、外表面刷塗水性環保型乳膠漆外墻塗料作為防護的綜合措施對原工程進行有效的加固處理，並結合水利工程的自身特點改進了加固技術工藝，取得了顯著的經濟和社會效益。
  10. For the structure that the side - frusta is also used as retain wall, considering the side frusta fastened on the weir body, the plane stress is calculated at first. then the moments, horizontal shear force and vertical force on the bottom of the retain wall are applied as fixate, and stress distribution on the weir body are calculated piecewise

    對于邊墩兼作擋上墻結構，通常是將邊墩視為固端于巖體上，先進行下端為固端的擋墻平面受力計算，再將擋墻下部的彎矩、水平剪力和垂直力作為集中外荷載進行堰體的應力計算，堰體也只能分段進行片面受力計算。
  11. ( 6 ) 3d integer model of spillway and frusta of brake are established and numerical computation of 3d viscous flow over spillway is completed. the influence of frusta of brake for design parameters such as shape of free surface, pressure on dam, flux coefficient is computed aim at type of frusta of brake and disposal on dam and compute result of different type of frusta and disposal model is compared

    6 ）通過建立溢流壩和閘墩的三維整體模型，完成了對三維過壩水流粘流場的數值計算，針對閘墩的型式及在壩面的布置計算了閘墩對水面線形狀、壩面壓力、流量系數等設計參數的影響，並將不同墩型與布置形式的計算結果進行比較。
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