軸向比率 的英文怎麼說
中文拼音 [zhóuxiàngbǐlǜ]
軸向比率
英文
axis scaling-
The results indicated that, the fabrication process of ultra - fine grain material is mainly determined by the stress, rotate speed and the flux of cooling water. the grain refining and the hardening effect are mostly affected by the rotate speed and the flux of cooling water. compared with commercial ly12, the invalidate strength and the prolongation rate of the ultra - fine grain material are properly improved in the measurement of compression property ; and the abrupt change of the dilatability of the ultra - fine grain material at 500c is found ; also the phenomena of which the grain size of these microstructures is stable when annealed under 300c is observed
研究表明,採用本文提出的摩擦壓扭強變形區轉移法可以得到棒狀的超細晶材料,軸向壓力、扭轉速度和溫度是採用該方法制備超細晶材料的主控參數;試件的旋轉轉速和冷卻速度對變形區晶粒細化和硬化效果影響顯著;超細晶ly12的壓縮性能與淬火+自然時效狀態的ly12壓縮性能相比,斷裂強度和延伸率均有一定程度的增強;超細晶ly12的熱膨脹系數在550左右發生明顯的變化。The influence of such parameters as axial load index, aspect ratio and percentages of lateral reinforcement, on seismic performance of reinforced concrete frame column in hong kong and analyses the distribution relationships of flexural deformation, shear deformation and slippage of longitudinal reinforcement in joint zone
根據試驗結果,討論了軸壓比、配箍率、剪跨比等參數對其抗震性能的影響,分析了水平荷載作用時塑性鉸區的彎曲變形、剪切變形和縱向鋼筋粘結滑移變形所產生的位移在框架柱總水平側移中所佔的比例及其變化規律。( 5 ) as torsion is increased, the anticlockwise secondary vortexes and the negative area of the stream function increase ; the axial velocity moves anticlockwise ( annular pipe ) or clockwise ( circular pipe ) ; the friction factor ratio finally reaches the value about 1
( 5 )增大撓率,逆時針方向旋轉的一二次渦和流函數的負值區域增大,軸向速度最大值的位置按逆時針(環形截面)或順時針(圓截面)方向旋轉,摩擦系數比最終趨向於1 。The results show that, when increasing the feed rate of the grinding wheel, decreasing the rotating speed of the wafer chuck table and using coarser grit grinding wheel, the material removal rate in the wafer rotating grinding increase, the feed rate of the grinding wheel has greater influence on the material removal rate ; when suitably increasing the rotating speed of the grinding wheel, decreasing the feed rate of the grinding wheel and using finer grit grinding wheel, the wafer surface roughness can be reduced ; there exists a critical rotating speed of the grinding wheel ( about 2300rpm ), beyond which the material removal rate evidently decreases and the spindle motor current and wafer surface roughness steeply increase ; when the grit size of the grinding wheel is finer than # 2000, the material removal rate decreases and the wafer surface roughness has no obvious improvement
研究結果表明,增大砂輪軸向進給速度和減小工件轉速,採用粗粒度砂輪有利於提高磨削矽片的材料去除率,砂輪軸向進給速度對材料去除率的影響最為顯著;適當增大砂輪轉速,減小砂輪軸向進給速度,採用細粒度砂輪可以減小磨削表面粗糙度;在其它條件一定的情況下,砂輪速度超過一定值會導致材料去除率減小,主軸電機電流急劇增大,表面粗糙度變差;採用比# 2000粒度更細的砂輪磨削時,材料去除率減小,矽片表面粗糙度沒有明顯改善。We did some analysis about the relativity between the vibration and the noise of the wheel. after the testing of the first line of guangzhou underground, we found that the existing wheel damper has nothing to do with the noise of wheel less than four thousands hz. compared of different contributions of the tread vibration and the web vibration on sound level of railway noise
在實驗過程中,改進了對車輪的激振方式,利用單擺激振提高了激振力的精度;實驗分析了車輪阻尼器的結構、安裝方式及其動力學參數對車輪阻尼器降噪效果的影響;也分析了車輪振動與噪聲的相關性;現場測試廣州地鐵一號線的噪聲特性,確定了車輪阻尼器所要控制的頻率范圍;對比分析不同激振情況下,踏面徑向振動與輻板軸向振動對噪聲聲壓級的貢獻比例。When the punched baffle is proper in length, the small holes are in staggered arrangement and the punched ratio gradually increases from the central axis to the boundary along the baffle length, the performance of flow distribution in the plate - fin heat exchanger is effectively improved by the optimum design of header configuration
從實驗對比分析中得出,當擋板小孔呈錯排分佈、開孔率沿擋板的中軸線向兩側逐漸增加、且總開孔率達到50 %左右的時候,在相同的入口條件下,不均勻系數由原始封頭的1 . 210降至0 . 209 ,最大流速與最小流速之比由23 . 163降至1 . 756 。2 % 22 % and 29 % respectively less than using other three knives at cutting speed of 500mm / min when the moisture contents of rootstalks was 48. 2 %. the cutting forces were tested at four different parts of rootstalk that were the middle part along a radius, the tip part along a radius, the middle part along axis and the stalk part along a radius, and the force at the middle along a radius is the largest and increase 32 % 45 % 111 %, respectively more than at the other three parts. the force increase 37 % to cut the rootstalks from the areas one crop a year more than that from two crops a year
試驗結果表明,根茬含水率愈高,剪切力愈小,根茬含水率與剪切力近似為二次曲線關系;刀片剪切速度愈快,剪切力愈小;凸曲線、斜線、凹曲線和直線四種不同的刀刃曲線對整株根茬剪切力依此由小到大,凸曲線和斜線剪切時有一定程度的滑切作用,所以剪切力相比較小,當根茬含水率為48 . 2 ,剪切速度500mm min時,與其他三種曲線相比凸曲線型刀刃的剪切力依次分別減少了7 . 2 、 22和29 ;對根茬中部、梢部和根部的剪切力,在相同試驗條件下,徑向中部最大,比梢部,軸向根部和根部莖稈所需剪切力分別增加32 、 45和111 ;當含水率為48 . 2 ,刀片的剪切速度為500mm min時,一年一熟玉米根茬比一年兩熟的玉米根茬剪切力增大37 。Then, this paper edits other computer program to calculate thirty sgrc frame columns, and researches the drift capacity of sgrc frame column, and analysis the turning capacity of frame column " s plastic hinge. then the relational expression of the curvature ductility factor and ratio of hoops of sgrc frame columns is derived. this paper analysis the relation of the curvature ductility factor and the relative drift of sgrc frame columns, and discuss the question of the minimum values of ratios of hoops of sgrc frame column at different axial load ratios
一11一太原理工大學碩_ i :學位論文使用本文程序另外模擬計算了30榻煤研石混凝土框架,進一步分析了軸壓比和配箍率對煤研石混凝土框架柱曲率延性的影響,編寫程序計算了30根煤研石混凝土框架柱,對煤研石混凝土框架柱的側向變形能力進行了研究,分析了柱塑性鉸的轉動能力,導出了煤研石混凝土框架柱的曲率延性系數與配箍率的關系式,分析了煤研石混凝土框架柱的曲率延性系數與框架柱相對側向位移的關系,討論了煤研石混凝土框架柱在不同軸壓比下最小配箍率的取值問題。With the different loading ratio of parallel to axis and normal to axis direction, damage defects will occur bulking problem. by varying the degree of material anisotropy relative to the loading axis such as poisson ' s ratio and shear modulus, crack growth bulking strain value parallel to or normal to the loading axis is different. the parameters controlling the growth or arrest of the delamination damage are identified as the geometry and the depth of defects and radius of cylindrical etc. at last, it was investigated that the delamination damage is often induced by the tip of matrix damage under higher stress
研究結果表明:殼體筒段受軸向拉伸和內壓載荷作用時,軸向和環向載荷的比率不同,母層和子層可能發生拉伸屈曲,也可能發生收縮屈曲,或者同時發生拉伸和壓縮屈曲;母層與子層各向異性存在差異,即泊松比與剪切模量不匹配時,將使子層板的邊界上承受壓縮和剪切作用,當分層達到臨界狀態則發生屈曲,當母層與子層的各向異性差異越大,則發生分層屈曲的可能性越大;分層損傷的屈曲應變值與子層自身的彈性模量、分層子層的形狀、厚度以及圓柱半徑等因素有關。5 results of an experimental investigation on shear behavior of l, t and + - shaped columns are presented. the effects of shear - span ratio, axial compression ratio, stirrup contents and loading direction on shear behaviors of l, t, and + - shaped columns are discussed. combining with test data of others, the formulas for shear strength of l and + - shaped columns are given
5對l 、 t 、十形柱受剪性能進行了低周反復荷載試驗研究,討論了剪跨比、軸壓比、配箍率、荷載作用方向對l 、 t 、十形柱承載力和延性的影響,並結合他人試驗結果,提出了l 、十形柱的偏下線受剪承載力公式。( 2 ) with f varying, there exists a number fr which is about - 1 ( curvature, torsion and dean number have little influence on fr ), when f > fr, the maximum of the axial velocity is near the outside bent and the friction factor ratio increases with f increasing ; when f < fr, the maximum is near the inner side bent and the ratio increases with f decreasing ; when f = fr, the distributions of the axial velocity are similar to those of poiseuille flow and the friction ratio is about 1
( 2 )當f變化時,存在確定的數值fr ( fr在- 1左右。曲率、撓率和dean數對fr的影響很小) ,當f fr時,軸向速度最大值偏向外側,摩擦系數比隨f增大而增大;當f fr時,軸向速度最大值偏向內側,摩擦系數比隨f減小而增大;當f = fr時,軸向速度的分佈和poiseuille流近似相同,摩擦系數比約為1 。The ratio of its vertical stiffness to lateral stiffness is very important in structure design
僅從結構來講,彈性輪對垂向和軸向剛度的比率是最重要的。The rapid prototyping algorithms were implemented by programming in ejb. the algorithms included the algorithm of choosing entity slicing layer thickness, the scanning algorithm of beeline parallel to x axis at first layer and beeline increasing by some angle and the area - scanning algorithm, etc. the general of the rapid prototyping software system based on j2ee was solved in the generals of system, module and application
在j2ee框架模型ejb組件中,編程實現了應用層收縮率v對固定的鋪粉厚度和自適應變鋪粉厚度進行調整的兩種實體分層層厚選取演算法;為了提高軟體的運行效率,將整個三維數據源表按z向高度分成20份的切片處理演算法;第一層平行於x軸每層比前層遞增一定角度的直線掃描演算法和分區掃描等演算法。A new high power microwave source, the axial acceletron is presented in this paper. compared with the radial accelectron, an acceleration region is added after the diode / oscillator and radial acceleration is change to axial acceleration. the bunching and radiation of the electron beam in the device are investigated
最後,我們提出了一種新的高功率微波器件? ?軸向加速管,與徑向加速管比較,有兩個不同:在二極體/共振腔后加一個加速段,並將徑向加速改為軸向加速。Some aspects of vertical twin screw compressor are compared with horizontal twin screw compressor : the axial bearing load of the vertical twin screw compressor is 57 % lower than horizontal twin screw compressor ; it also can increase 5 % capacity but it only occupied the 30 % area of horizontal twin screw compressor ; and it has more efficient oil separator as its special figure
並對立式螺桿製冷壓縮機與臥式螺桿製冷壓縮機進行了分析比較:立式螺桿壓縮機的軸向力比臥式壓縮機的軸向力減少57 % ;立式螺桿壓縮機的容積效率要比臥式壓縮機的容積效率高5 % ;由於油分的特殊環形設計,所以立式壓縮機的油分效果要比臥式壓縮機的油分效果好;而立式壓縮機佔地面積為臥式壓縮機的1 / 3 。Four arrays of apparent resistivity are arranged at this measuring surface of granite sample symmetrically with symmetrical four - electrode method, and at an angle of 45 between any two adjacent arrays. the elastic constraint is exerted on 4 surfaces for parallel to the longest dimension of the sample. the samples are compressed along the direction parallel to the longest dimension of the cubic, and the variation of apparent resistivity during the whole loading process is observed
在花崗巖標本測量面上,布設4條夾角互為45的視電阻率測線,將標本平行長軸方向的4個面加上彈性約束,沿標本長軸方向加壓,測量標本視電阻率隨軸向應力的變化,實驗結果為: 1巖石視電阻率變化形態顯上升-平穩-下降形態,但平穩段不明顯,時間很短2視電阻率開始下降時間,比其他受力方式實驗結果都早,約提前10 %破裂應力。Owing to the cylindrical surface of piston and jar hole, radial piston pump can be assembled accurately. compared with the axial piston pump, the radial piston pump is better against impact, moreover, it has longer life, higher cubage efficiency and higher control precision
由於徑向柱塞泵具有柱塞與缸體內孔均為圓柱面,易達到高精度的配合等結構特點,因此,比軸向柱塞泵耐沖擊、壽命長、容積效率高、控制精度高。The optimization design of the crank - connect rod mechanism was carried out. collocating the mass reasonably, adjusting the ratio ( ( 1 - f ) / f ) of the long axis to the short axis of the ellipse track, adjusting the direction of long axis to the direction where the internal - combustion engine was not sensitive to the stimulating force. all the above contribute to the max reduction of the vibration
對單缸內燃機的曲柄滑塊機構進行優化設計,合理的布置加配質量的大小和方向,對軌跡橢圓的長短軸比率( 1 - f ) / f進行調整,將長軸方向調整到內燃機對激振力不敏感的方向,從而使不平衡力對內燃機所產生的振動最小,以某一具體的單缸內燃機為例進行了計算分析。The modal analysis result shows that the vertical and horizontal frequencies of dps undeployed are high enough and suffice the dynamic stiffness requested for launching. but the large spread length and light weight effect the low frequency of dbs deployed, so considerations should be taken to the effects of other systems of the satellite. the static analysis result shows that the displacements of the dbs are small under the joint affect of vertical and horizontal loads, and stresses are low, so the stiffness and intensity are good enough
模態分析結果表明伸桿收攏狀態的軸向和橫向頻率都比較高,可滿足發射升空時的動剛度要求;靜力分析結果表明伸桿結構在衛星處于發射段和上升段時,在軸向和橫向過載聯合作用下變形均較小,剛度足夠;其應力水平亦較低,強度儲備較大。Experiments have demonstrated that, under the condition of constant temperature ( 20 ), the frequency error of double - frequency laser interferometer with two longitudinal modes could be controlled within 10 " 9 even with conditions such as with cool or hot air blowing, it can still be kept within 10 " 7. self - organised fuzzy control methods can be realised in a single - chip processor which contains fuzzy optimisation and self - organisation functions. the above - mentioned system possesses the following advantages : simple
/ znl (式中c為光速, l為諧振腔長, n為空氣折射率,其值約790mhz ) ,原理上對目前可能要求的測量速度都能滿足;它發出的光為一對互相垂直的線偏振光,與塞曼型雙頻激光干涉儀相比,它不用外加軸向磁場及1 / 4波片,因此結構簡單,造價低廉。分享友人