末加速度 的英文怎麼說
中文拼音 [mòjiāsùdù]
末加速度
英文
final acceleration-
Papers also points out that the size of the adscititious powder agglomerate enwrapped by pure al melt, the effect and intensity of stirring shear force and the melt temperature at the beginning of reaction between the adscititious powder and al melt are the main factors affecting the in - situ reaction ongoing velocity
並指出了影響反應進行速度的主要因素是熔體中分散包裹的加入粉末團的尺寸大小、有無攪拌剪切力作用、反應進行時的熔體溫度。其中，粉末團尺寸大小與徹底完成反應所需時間的關系最大，大尺寸粉末團將大大延長反應時間。A numerical simulation of a planar 3r manipulator is performed. the results show that the non - linear torsion springs have important influences on the joint error and tip error of manipulators. moreover, the influences of linear part of non - linear, the lumped mass of the rigid links and the angular acceleration of joint actuators on the non - linear dynamic character of flexible joint manipulator are discussed
首先，建立了剛性桿非線性關節機器人的動力學模型，之後通過一平面3r機器人進行了數值模擬，說明了在一定情況下，關節的非線性對剛性桿機器人關節變形和末端誤差具有重要影響，並在此基礎上，討論了關節線性項、桿的集中質量和關節驅動加速度對機器人關節非線性特性的影響。2. dynamics analysis : by setting up jacon matrix differential coefficient sport is passed to descartes space. it makes terminal executing manipulator produce differential coefficient of acceleration and force in every different coordinates can be got. then the effective inertia, coincident inertia and gravity load of two manipulators are calculated by lagrange method. so generalized joint torque of each joint is got, and along with equivalent driving torque, actual driving torque of each joint can be worked out. 3
動力學分析：建立雅可比矩陣將關節空間的各關節的微分運動傳遞到笛卡爾空間，使末端執行器位姿產生微分運動，以用於求加速度及力在不同坐標系間的線性變換，再用拉格朗日法計算兩機械手的有效慣量、偶合慣量、重力載荷，從而計算得到各關節的廣義關節力矩，並與等效驅動力矩共同算得各關節的驅動力矩。Analyse the research of distributing of microbe community and the tendency of the change, disscuss the principle and traits of denaturing gradient gel electrophoresisand terminal restriction fragment length polymorphism, to research the law of change that the microbe community have in composting process, we can get effective and rapid information to filtrate the microorganism during composting process, then accelerate the development of compost technology
摘要對堆肥微生物種群分佈及其動態變化的研究進行了分析，論述了分子生物技術中的變性梯度凝膠電泳和末端標記限制性片段長度多態性的原理和特點，以及用於研究堆肥微生物的群落結構演變規律，為分析和篩選堆肥中的微生物提供更加有效、快速的信息，促進堆肥技術的發展。Result of numerical simulation analyses powder grain size influence to velocity and temperature of flame, repeat with different grain size parameter simulation calculate, it has important meaning to accelerate and heat performance of spraying powder
根據數值模擬結果分析了粉末粒度對火焰焰流速度和溫度的影響，用不同粒度參數重復模擬計算，這對噴塗粉末的加速和加熱性能具有重要意義。At the end of the 20th century, the development of science and technology and the speed of economic integration have accelerated. then changes of money ' s form had also sped up
20世紀末，隨著科學技術的發展和經濟一體化進程的加快，貨幣形態演變的速度也在加快，人類社會正經歷著從紙幣向電子貨幣過渡的重要時期。The joint velocity could be guaranteed smoothly continuous so long as the end velocity of the manipulator was smoothly continuous, and when joint velocity limit was added, the joint velocity could be guaranteed continuous
只要機器人的末端速度是連續光滑的，那麼關節速度必然是連續光滑的;當加入關節速度極限約束時，能夠保證關節速度是連續的。This paper presents the trajectory planning of five - bar hybrid driven mechanism based on inverse kinematic theory and spline interpolation function, analyses the effect of rotational speed of real time non - adjustable motor on the acceleration of the manipulator end point and real time adjustable motor, and then derives the mathematic relationship between them
摘要運用逆運動學原理和樣條函數給出了混合驅動五桿機構的軌跡規劃方法，並討論了常速電機的轉速末端執行器和伺服電機加速度的影響，得出了他們之間的數學關系式。The law was alike between initial stage and the peak of growth, but the rates reaching maximum of negative and positive were in the different soil depths, and the inflexions of increment and decrement by degrees were also different. the soil water content in terminal stage increased positively, and in surface reached the maximum, but decreased with the depths, except a little increment in the depth of 460 - 600cm. 2. the contents of soil organic matter of 0 - 40cm is greater than other layers in eleven - year locust and 40 - 100cm are little low than 100 - 220cm
不同生長時期，土壤含水量變化的速度不同，生長初期和生長旺季的規律相似，但速度出現負的最大和正的最大所在的土層深度不同，速度遞增和遞減拐點所在的土層深度也不同，速度出現負值，說明隨著土層深度的加深，土壤含水量在增加，速度為正值，說明隨著土層深度的加深，土壤含水量在減少；生長末期速度均為正值，表層最大，隨土層深度的加深，速度遞減，到460 - 600cm處速度略有增加。Based on the theory of laminated object manufacturing, the technology can directly produce three - dimension miniature structure by melting nano - phased powder with fine focus. in the process of micromachines, an important technological quota is the distinguishability. in the microscopic process of rapid fabrication, the distinguishability including the scanning distinguishability and the fabrication distinguishability
該技術將選區激光燒結快速成型技術與納米科學技術、激光技術、計算機控制技術結合起來，應用分層製造思想，以更精細聚焦的激光熔燒微、納米粉粉末直接成形三維微結構。在微機械加工中，一個重要技術指標是解析度，在快速成型微細加工中，把解析度區分為掃描解析度以及成型解析度。The value of surplus environmental capacity of din exceeded about 70 percent of the 1st grade environmental capacity in 1997. since 1997, the impact of nutrients pollution has begun to mitigate because of the enhancing protection of marine ecology by local government. the variation of surplus environmental capacities of din and po4 - p in jiaozhou bay implicated that the discharge amounts of din and po4 - p to jiaozhou bay were bearable from late 1970s to mid 1980s
但自80年代中期至90年代中後期，營養鹽剩餘環境容量迅速減小，至1997年din剩餘環境容量已超過國家一級海水水質標準下膠州灣din環境容量約70 ，而自90年代末開始膠州灣din剩餘環境容量又有所增加，而po _ 4 - p剩餘環境容量減小速度趨緩。Measurement of the temperature field of aluminum alloy of different thickness on laser welding with high - temperature thermocouple, analysis of influences with different position, power. speed, with metal powder, thickness were evoluated in this paper
摘要利用高溫熱電偶檢測異厚度鋁合金激光拼焊時的溫度場，分析不同檢測位置、激光功率、焊接速度、添加粉末、板材厚度對溫度場的影響。In this thesis, the sls molding properties of some metal - base composite powders composed of metal powder mixed by several regularly used polymers " powder were studied, on the basis of which, a new sls composite material made by 316 stainless steel powder mixed by epoxy powder was developed and produced. the molding technics and adherent mechanism of the material in sls process was analyzed and studied, and the high temperature sintering technics of the green parts of the material was discussed as well
本文主要針對快速成型的sls方法，研究比較了幾種常用的聚合物粉末添加到金屬粉末中所構成的金屬基復合粉末的成型性，並且研製開發了316不銹鋼粉末與環氧樹脂粉末共混復合粉末作為成型材料，對其sls過程的成型工藝、聚合物粘接機理以及型坯的高溫燒結工藝進行了研究論述，並進一步對型坯的高溫燒結過程、燒結中的收縮變形和燒結后的強度作了分析研究。The reaction milling which is based on the principles of mechanochemistry theory takes more and more important part in developing new materials. the present researches have been foucsed on the reactions in solid - solid and solid - gas systems, but few in the solid - liquid systems. three systems were investigated by milling metal powders in distilled water
本文根據機械合金化及機械力化學等理論，在已有的研究基礎上加入適當創新，研究在水溶液中球磨mn 、 zn 、 sn等金屬粉末的固液球磨反應和球磨參數對反應產物和速度的影響。The results show that the optimal processing of 6061 aluminum foams which have structural uniformity and controlled porosity is the foaming temperature 620 - 690, heating rate 45 / min - 60 / min and heat preservation time is 12 - 18min. according to pore size tih2 content is chosen. when pore size is big, tih2 content is high and heat preservation time is short, vice versa
研究結果表明，對于實驗採用的6061鋁合金粉末材料來說，加熱發泡製備出孔隙結構均勻，孔隙率可控的泡沫鋁的最優條件是，加熱溫度為620 - 690 ，保溫時間為12 - 18min ，加熱速率為45 - 60 min ， tih _ 2含量可以根據所需孔徑的大小來確定。5. aiming at the specific mission that intercept the warhead of tactical ballistic missile, the new issue for designing the guidance law is analyzed, and a new guidance method that fit for the mid - course is presented, based on the idea of predicting the intercept point. to design a feasible terminal guidance law, the shortcoming existing in the proportional navigation when intercepting the warhead is firstly
針對攔截戰術彈道導彈這一特殊任務，分析了導引律設計面臨的新問題，提出了以預測攔截命中點為思想的中制導段導引方法，研究了末制導段比例導引律彈道形狀和過載分佈特點，在此基礎上為了改善比例導引律的缺陷，引入了目摘『要標機動加速度和導彈軸向加速度等信息、 ，又寸比例導引律進行了修正，井對導引律中各參數進行了優化。In the final stage of the liangzhu culture, warm - humid climate, heavy precipitation and rising temperature led to sea - level rising, rivers running impeded, water areas large, in addition that the sites in the last stage of the liangzhu culture were mostly located in low - lying areas, which had liangzhu ancients suffered a unparalleledbig flood disaster resulting in the cultural decline
良渚文化末期，氣候暖濕，溫度增加，導致海平面上升，入海河流宣洩不暢，水域面積擴大，加之良渚文化晚期遺址多分佈在地勢低洼地區，因此良渚先民遭受了一場大洪水災難，遂使良渚文化迅速衰落。The forward kinematics simulation results showed that accelerates of the end - effector obtained from simulation was equal to that of the given. the relation between the velocity of the end - effector and simulation time was nearly linear with gentle tangent slope, and the position varied with time continuously and smoothly without any vibration during moving
正運動學模擬結果表明，末端執行器加速度與給定加速度一致，速度與時間基本呈線性變化且斜率小；位置曲線變化平滑，無振動現象，滿足正常工作要求。The other is the resonance of boom system of the truck - mounted concrete pump and the frequency response of displacement and acceleration of testing point. the main results and argumentations of this thesis are listed below in detail. 1. based on the certain boom system model of the truck - mounted concrete pump made in china, three - dimensional model of boom system of the truck - mounted concrete pump is built by using the softwar of pro / engineer
2 .基於剛柔混合柔臂架模型，利用adams的振動模塊，以混凝土流動時的沖擊力為激勵對臂架系統進行了諧響應振動研究，得到臂架振動響應的幅頻曲線，並對結果曲線進行了分析，在此基礎之上，研究了油缸阻尼對臂架末端振動位移和振動加速度的影響。分享友人