螺的軸柱 的英文怎麼說
中文拼音 [luódezhóuzhù]
螺的軸柱
英文
columella-
Since complicated differential and integral operations were involved in the kernel of the integral equation, we simplified the equation and got the nakano equation. as instances, the planar archimedean spiral antenna, the planar equiangular spiral antenna, the monofilar helical antenna, the conical helical antenna with fixed ascending angle and the conical equiangular - spiral antenna were analyzed through the moment method. all of the results matched fairly well with the references and experiment results
這種方法的積分方程的積分核里含有復雜的微積分運算,為了簡化計算,本文在推廣的海倫積分方程的基礎上,對方程進行了簡化,推導了nakano方程,並以平面阿基米德螺旋天線,平面等角螺旋天線,軸向模圓柱螺旋天線,具有固定升角的圓錐螺旋天線和圓錐等角螺旋天線為例,用矩量法求解了天線上的電流分佈,研究了螺旋天線輻射的寬頻帶特性,所得的結果均與參考文獻吻合很好。In this thesis, four types of steel beam - rectangular cfst column connections, including normal welded flange plate ( wfp ) connection, bolted flange plate ( bfp ) connection, stiffened end plate ( sep ) connection and double split - tee plate ( dst ) connection, were designed based on the configuration of steel frame connection. total 8 models, 2 models of each kind of connections were tested under low - reversed cyclic loading at the end of cfst columns. the relationships between force and displacement at the end of columns, the relationships between the moment and rotation of the joints, degradations of strength and stiffness, ductility, failure mechanism and failure characteristics of these four connections under different axial - compression ratios were presented
本文借鑒鋼框架節點構造,設計了四種類型矩形鋼管混凝土柱與鋼梁連接節點,包括常規栓焊( wfp )節點、翼緣全螺栓連接( bfp )節點、雙t板連接( dst )節點以及加勁端板連接( sep )節點,進行了四類節點8個模型試件在柱端低周反復荷載作用下的抗震性能試驗研究,比較了不同軸壓比下節點的滯回性能、強度與剛度退化、延性、破壞機理與破壞特徵,主要結論有: 1 、節點的位移滯回曲線與轉角滯回曲線為塊型分佈,沒有或略有捏攏現象,耗能能力強; 2 、軸壓比對節點滯回曲線有顯著影響,全部節點都有顯著的剛度退化; 3 、位移與轉角骨架曲線在峰值荷載後有較長的水平或下降段,具有良好的延性性能; 4 、從整體抗震性能上看,翼緣全螺栓連接節點、雙t板連接與加勁端板連接節點都優于常規栓焊節點,可在實際工程中加以推廣。Square head bolts with collar and oval half dog point
帶肩和半圓柱軸頸止端的方頭螺栓Square head bolts with short dog point
短螺栓末端的圓柱軸頸止端的方頭螺栓Then an thorough computer modeling using finite element program with material, geometry and state triple - nonlinear taken into account is carried out on a series of influencing factors, such as comparison with npn - beam splice connection, comparison of varies designed theories, and the varying of fraction coefficient, diameter, grade, pretension and arrangement of bolts, thickness of web and flanges of beam and column, splicing location, axial loading on column, etc. lots of useful conclusions are drawn form computer modelling. finally, design and construction suggestions are given out. this study fills the black in the field of steel beam - to - column connection with cantilever beam high - strength bolted - splicing at both home and abroad
然後,本文在考慮材料、幾何和狀態三重非線性的基礎上,對該連接形式進行了全面的計算機模擬,主要考慮了帶懸臂梁段全螺栓拼接的樑柱連接節點與無拼接的樑柱連接及翼緣對接焊接腹板拼接的連接節點的對比,各種設計方法之間的對比,以及翼緣拼接和腹板拼接的螺栓間距、直徑和數量,拼接點與梁端之間的距離,梁和柱的翼緣、腹板厚度,柱的軸力,接觸面的摩擦系數,翼緣和腹板拼接板的厚度等因素的影響。Cylindrical metal casings for electrical engineering with thread pivot
電氣工程用帶螺紋樞軸的圓柱形金屬殼體The difference between axial compressive capacity of beam - column joints and that of columns is introduced when joints are strengthened by various measures. influence of shapes, spiral hoops and ratio of beam depth to side dimension of square column upon axial compressive capacity of beam - column joints is discussed. then economy and security of the relative article in current code are demonstrated and the design recommendations of beam - column joints are given
本文通過6個不同強度等級混凝土樑柱節點試驗,了解在不同的加強措施情況下,節點區的軸心抗壓承載力與柱的理論軸心抗壓承載力的差異,探討了角鋼、螺旋箍筋及梁高與柱截面尺寸的比值h c對節點區軸心抗壓承載性能的影響,驗證了我國現行規范有關條款的安全性和經濟性,並且在此基礎上,為不同強度等級混凝土樑柱節點的設計提出了相關建議。On the base of the anti - theory, the shear property of high - strength concrete column confined with high - strength continue compound spiral hoops is analyzed taking account of the advantage and disadvantage influence by the axial load
在前述理論的基礎之上,考慮到軸力對抗剪的各種有利和不利的影響和連續復合螺旋箍筋對高強混凝土的約束作用,具體分析了高強混凝土高強連續復合螺旋箍筋柱的抗剪性能。Fasteners. screws for screw - jacks. small square head screws with short dog point. product grades a and b. symbol qz
緊固件.螺旋千斤頂螺釘.帶短圓柱軸止端的小四方頭螺釘.和級產品.符號Fasteners. screws for screw - jacks. small hexagon head screws with long dog point. product grades a and b. symbol hz
緊固件.螺旋千斤頂的螺釘.帶長圓柱軸止端的小六角頭螺釘.和級產品.符號In order to predict high - strength bolts pretension and contact - friction in contact zone, status nonlinear in contact zone is adopted in fem model. the computation and analysis on the behavior of beam - to - column rigidity joints subjected to constant axial pressure on the top of column and cyclical load at tip of beam is carried out
實體模型的建立,考慮了接觸區的狀態非線性,以模擬高強螺栓的預拉力、螺栓連接區的摩擦接觸,對承受軸力的樑柱剛性連接方式在循環荷載作用下的滯回性能進行了計算分析。Based on the navier - stockes equation, the finite difference method was applied to variance the simplified n - s equation on cylindrical coordinate system. then, 3 - d model of the spiral flow locally generated in circular pipe with steady and axial - symmetry condition was founded. the ordinary iterative method of gauss - seidel was induced
太原理工大學碩士學位論文本文以局部起旋條件下的圓管螺旋流為模擬對象,從以速度和壓強為自變量的微分方程一navier一5tokes方程出發,利用有限差分法對柱坐標系下簡化后的n一s方程進行離散,建立定常的、軸對稱的三維計算模型。A plain or notched, often wedge - shaped piece of wood or metal designed to hold parts of a machine or structure in place or provide a bearing surface, usually adjusted by a screw or key
扁柱,夾條,凹字形楔一種平的或有凹的經常是一塊楔形的木頭或金屬,用來在一定地方夾住機器或結構的各部分或提供軸承的表面,通常是由螺絲或鑰匙來調整Cylindrical and 1 10 conical shaft ends. internal threads. center holes
園柱軸和1 10錐度的錐形軸端.內螺紋.中心孔Innovative storage concept works perfectly in both finished and unfinished areas along a wall or around a stud, includes screw driver slots and bin for multiple usage
新穎的存儲設計是裝在一堵壁或一個柱軸,巧妙地和用使用和未使用的空間,包括多功能的螺絲槽和箱格。And many others. you also have available many material, comparison, and decision tables, including a system for the administration of resolved tasks. description in pdf format
包含很多常見設計或者校核的計算,例如驅動輪,錐輪,調速帶, v帶,鏈,軸承,彈簧,柱,梁,軸,螺栓,聯軸器,公差,公差分析,技術公式等等。The axial frictional pulling force and the minimum thickness of mucus film were analyzed and calculated in detail when rectangular or trapezoidal cylindrical screw was being adopted in microcomputer
詳細分析計算了微型機器人在採用矩形和梯形圓柱螺旋時的軸向摩擦牽引力和最小粘液膜厚度。分享友人