等加速度運動 的英文怎麼說

中文拼音 [děngjiāyùndòng]
等加速度運動 英文
motion with uniform acceleration
  • : Ⅰ量詞1 (等級) class; grade; rank 2 (種; 類) kind; sort; type Ⅱ形容詞(程度或數量上相同) equa...
  • : Ⅰ形容詞(迅速; 快) fast; rapid; quick; speedy Ⅱ名詞1 (速度) speed; velocity 2 (姓氏) a surna...
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • : Ⅰ動詞1 (物體位置不斷變化) move; revolve 2 (搬運; 運輸) carry; transport 3 (運用) use; wield...
  • 運動 : 運動[舊時用語] arrange things or get things done through pull
  1. Using matlab and its add - ons simulink, through establishing simulation maths model, the paper integrates open chain vector equation ( describing motion restriction ), numerical value simulation ( computing velocity and displacement while given acceleration ) and matrix algebra, etc. to accomplish dynamic simulation for the robot and verifies the results for kinematics of the robot using analysis method, and it establishes foundation for following study for the robot such as kinetics, control, etc

    利用matlab及其附軟體simulink ,通過建立模擬數學模型,綜合開環矢量方程(描述約束) 、數值模擬(在已知時計算和位移) 、以及矩陣代數來完成機器人態模擬,對所研究的機器人學分析結果進行驗證,結果基本一致,為機器人的后續研究,如力學,控制奠定基礎。
  2. The main work includes : the kinematic properties of a planner 4 - bar linkage are researched deeply using the assur group theory. the displacement, velocity and acceleration of each joint point in a motion period are put forward and their curves of the relevant points are plotted

    通過學分析,得出平面連桿機構在一個周期中各鉸接點的位置、以及各桿件的角、角學參數,並繪制出相應的變化曲線。
  3. Backed up by the soplat theory based on particle kinematics, the second chapter of this paper presents with analysis and simulation of several single observer passive measurement models, which uses such relative movement parameters as bearings changing rates and centrifugal acceleration information on the basis of bearings measurements. in the third chapter, the observability of location respectively using bearings and its changing rates information and centrifugal acceleration information is analyzed, and its observable condition is got. the fourth chapter puts forward the modified covariance extended kalman filtering ( mvekf ) against the defect of traditional extended kalman filtering ( ekf ), whose performance is simultaneously compared in the chapter with the performance of ususal tracking algorithm such as ekf, mgekf, iekf by computer simulation

    在近年來提出的基於質點學原理的單站無源定位理論基礎上,本文第二章提出了幾種在角測量的基礎上增變化率及相對的離心學參數的單站無源測量模型,並對它們進行了分析和模擬;第三章分別對利用角及其變化率信息定位和利用離心信息定位的可觀測性進行分析並得到了相應的可觀測條件;第四章針對傳統擴展卡爾曼( ekf )方法的缺點,提出了一種修正協方差的擴展卡爾曼濾波( mvefk )方法,並將其和ekf 、 mgekf 、 iekf常用的單站無源定位濾波方法進行了性能模擬比較;第五章通過引入雷達機目標跟蹤方法和模型,提出了利用角及其變化率對機輻射源跟蹤的多級噪聲自適應方法和imm方法;第六章主要對角變化率和離心參數的獲取技術進行了研究,提出了幾種高精測量脈沖序列多普勒頻率變化率的方法。
  4. 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

    力學分析:建立雅可比矩陣將關節空間的各關節的微分傳遞到笛卡爾空間,使末端執行器位姿產生微分,以用於求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,並與效驅力矩共同算得各關節的驅力矩。
  5. Offline handwriting images can easily be imitated and copied. in addition, it is nearly impossible to detect from them the dynamic information utilized by the online systems, such as the writing speed, acceleration, and pressure and so on

    離線手寫體筆跡圖像很容易被模仿、復制,而在線鑒別系統普遍採用的、壓力態信息,在離線圖像中已保留得不多了。
  6. The first part makes a detailed exposition on " problem - inquiry " model in the aspects of historical origins, connotation, theoretical basis, operation programme, evaluation system and implementation conditions etc. in accordance with the different characteristics and requests of theoretical, experimental, exercises lessons, the second part illustrates how carry out " problem - inquiry " model respectively using the motion of level projectile, determine acceleration of gravity with single pendulum, the motion question of pursuit and meeting as living examples

    第二部分(第二章)針對理論課、實驗課、習題課不同課型的具體特點及要求,分別以《平拋物體的》 、 《用單擺測定重力》 、 《追及與相遇問題》為實例,論述了在理論課、實驗課、習題課教學中,如何實施「問題一探究」式教學模式。
  7. There are two parts in this paper : firstly, a set of single doppler velocity models are presented for typical ambient windfields that include those of being uniform horizontally, macroscale convergence and divergence, which overlap warm and cold advection. which are marked by different signatures in the single doppler velocity field. the models proposed can help users identify useful information from the dopple velocity patterns

    本論文包括兩個部分:第一篇通過對典型風場的單多普勒天氣雷達徑向圖象進行模擬,典型風場包括水平均勻一致的風場、非均勻水平風場的大尺的輻合輻散風場以及大尺的輻合輻散風場與冷暖平流的迭
  8. The main content is in the following. a kinematics model is developed for mould - cut main mechanism of trade - mark moulding - machine and the displacement, velocity, acceleration and the corresponding curves of each joint point in a motion period are obtained

    主要內容如下:對商標模切機主切機構進行了學建模,得出了機構在一個周期中各鉸接點的位置、參數及曲線。
  9. Based on the theory of mechanical optimization and finite element analysis, elbow - bar mechanism of the mp1040b moulding machines made by beiren group is investigated in the dissertation. firstly, a kinematic model representing the bar mechanism is built and the nonlinear system of equations is solved through the method of gradient. meanwhile, the angular displacement, angular velocity, angular acceleration and the corresponding curves of each component in a motion period are obtained

    本文以北京人民機器廠mp1040b型模切機肘桿機構為研究對象,以機械最優化理論和有限元技術為基礎,首先對模切機肘桿機構建立數學模型,通過梯法求解此非線性方程組,並得出機構在一個周期中各構件的角位移、角參數及曲線。
  10. Kinematic analysis : by denavit - hartenberg method, space geometry relationship of each pole relative to fixed reference frame can be described with equal index transform, also do space relationship of two adjacent poles with 4x4 equal index. so equivalent equal index transform matrix can be deduced from them. when sportive equations and sportive coordinate frame of workpiece exercise point are set up, the coordinate values of exercise point can be got, the pose and situation of two manipulators are analysed, in the end each joint valiable and its velocity, acceleration are worked o ut

    學分析:利用denavit ? hartenberg法,用齊次變換描述各個桿件相對于固定參考系的空間幾何關系,用一4 4的齊次變換矩陣描述機鄰兩桿的空間關系,從而推導出價齊次變換矩陣,建立兩機械手方程,確定工件作業點隨坐標系,求出作業點坐標,對兩機械手的位姿進行解析,求出兩機械手的各關節變量及其值。
  11. The dynamic precision measurements of property such as transmission error, single shaft motion speed and acceleration and so on, involve in frontal technologies about subjects including optics, mechanics, electricity, magnetism and computer. and these measurements play an important role in many manufacture fields

    誤差te ( transmissionerror )及單端特性mp ( motionproperty )的態精密測量涉及光、機、電,磁和計算機多門學科的前沿技術,在生產中有著非常重要的意義。
  12. Power bond graph is used to established the bond graph model of the lifting and dropping of hydraulic pile hammer and state space equation in the paper for hydraulic pile hammer is perplexing nonlinear system. in order to attain the graph that pressure, position, velocity, acceleration vary with time in the course of driving pile simulation procedure solving state space equation is designed on the basis of combining four - order runge - kutta method with predicator - corrector method, dynamic simulation of the hydraulic system is studied in matlab 6. 5. it is convenient to analyse dynamic characteristics of the hydraulic syste m, beneficial to the design and parameter optimization of the hydraulic system. in the final part of the paper, under detailed analysis of the control characteristics for double - acting hydraulic pile hammer with double cylinders, control system based on the programmable logic controllers founded on technology of modern compute is designed

    由於液壓打樁錘液壓系統是一個復雜的非線性系統,本文採用功率鍵合圖法建立液壓打樁錘上行、下降的鍵合圖模型和狀態空間方程,通過四階龍格?庫塔法和預估?校正法相結合編制了模擬程序對狀態空間方程求解,在matlab6 . 5中進行液壓系統的態模擬,獲得液壓打樁錘過程中壓力、位移、隨時間變化的曲線圖。此曲線圖方便了對液壓系統態特性分析,為液壓系統的設計和參數優化提供了有益的借鑒。最後,在深入分析雙缸雙作用液壓打樁錘控制系統的功能要求后,採用了以現代計算機技術為基礎的新型工業控制裝置? plc可編程式控制制器,設計出了雙缸雙作用液壓打樁錘的電器控制系統。
  13. The exponent of each item was discovered based on the optimizing the diagram factor, minimum radius of the cam curvature, maximum positive and negative accelerations of valve

    對于每一項的指數,則採用對氣門、豐滿系數、最小曲率半徑優化的方法來尋求。
  14. On the basis of discussing the possible aristhemetic for kineticscs indexes in motive video analysis, it was suggested that arithmetics of different quotient of center should be used in calculating the speed and accelerated speed, and the joint angle and segment angle, space angle and projection anagle should be ( differentiated ) so that the indexes could be more comparable

    影像拍攝與解析系統中學指標的可能演算法進行了討論,建議在計算(角)、 (角)學指標時應當盡可能地用中心差商的演算法,在使用學指標時應當正確區分關節角和環節角、空間角與投影角兩組概念和演算法的不同,以使各種不同的解析系統計算出的學指標更具有可比性。
  15. The calculation model can be used to optimize the structure and size of the rear horsehead, solve the problem that the structure and size of the rear horsehead affect the kinematic parameters of the polished rod and the torque factor, as well as the performance of the unusual shape beam pumping unit

    利用此方法可以準確而迅地求出不同機型的懸點位移、及扭矩因數各項參數,也可計算優化后驢頭的結構尺寸,解決異形游梁式抽油機后驢頭結構與尺寸直接影響懸點的參數和扭矩因數,進而影響抽油機工作性能的問題。
  16. The explicit method is widely used for its simpleness and little memory consumed with local time step and variable coefficients implicit residual smooth to accelerate the convergence procedure. according to yoon and jameson ' s ideas, an efficient implicit lu - sgs algorithm is carefully constructed by combing the advantages of lu factorization and symmetric - gauss - seidel technique in such a way to make use the l and u operators scalar diagonal matrices, thus the numeric algorithm requires only scalar inversion. the computational efficiency is greatly improved with this scheme

    顯式方法具有簡單,消耗內存小優點,並採用當地時間步長、變系數隱式殘值光順收斂措施,在定常流的模擬中得到了廣泛的應用;根據yoon和jameson提出的簡化正、負矩陣分裂,構造的l 、 u算元只需進行標量對角陣求逆,極大提高了流場數值求解過程的計算效率;採用newton類型的偽時間子迭代技術使時間推進精提高至二階。
  17. In order to make appropriate cushion package, we should consider the property of packed commodities and the transport environment including velocity, acceleration, shock, vibration, atmospheric pressure, temperature, humidity and so on.

    摘要為尋求緩沖包裝的合理化,在考慮內裝物品特性的基礎上必須考慮輸環境條件參數,包括、沖擊、振、大氣壓強、溫和濕
  18. A simulation method is proposed to predict the motion artifacts of plasma display panels ( pdps ). the method simulates the behavior of the human vision system when perceiving moving objects. the simulation is based on the measured temporal light properties of the display for each gray level and each phosphor. both the effect of subfield arrangement and phosphor decay are involved. a novel algorithm is proposed to improve the calculation speed. the simulation model manages to predict the appearance of the motion image perceived by a human with a still image. the results are validated by a set of perceptual evaluation experiments. this rapid and accurate prediction of motion artifacts enables objective characterization of the pdp performance in this aspect

    針對目前離子顯示屏普遍存在的偽像問題,提出了一種新穎的模擬計算方法,該方法實現了對離子體顯示屏偽像的準確、快估計.該方法通過測量離子顯示屏不同顏色不同灰下光信號隨時間的變化情況,模擬人眼對圖像的視覺感知行為,模擬計算出任意圖像以一定下的視覺感知效果.新演算法不但入了離子顯示屏熒光粉的延遲效應的影響,而且提高了模擬計算.所得模擬結果與實際主觀視覺感知實驗相符.這種快準確的估計使對離子顯示器件偽像的客觀評價成為可能
  19. Abstract : a simulation method is proposed to predict the motion artifacts of plasma display panels ( pdps ). the method simulates the behavior of the human vision system when perceiving moving objects. the simulation is based on the measured temporal light properties of the display for each gray level and each phosphor. both the effect of subfield arrangement and phosphor decay are involved. a novel algorithm is proposed to improve the calculation speed. the simulation model manages to predict the appearance of the motion image perceived by a human with a still image. the results are validated by a set of perceptual evaluation experiments. this rapid and accurate prediction of motion artifacts enables objective characterization of the pdp performance in this aspect

    文摘:針對目前離子顯示屏普遍存在的偽像問題,提出了一種新穎的模擬計算方法,該方法實現了對離子體顯示屏偽像的準確、快估計.該方法通過測量離子顯示屏不同顏色不同灰下光信號隨時間的變化情況,模擬人眼對圖像的視覺感知行為,模擬計算出任意圖像以一定下的視覺感知效果.新演算法不但入了離子顯示屏熒光粉的延遲效應的影響,而且提高了模擬計算.所得模擬結果與實際主觀視覺感知實驗相符.這種快準確的估計使對離子顯示器件偽像的客觀評價成為可能
  20. On the bases of these, we give computer graphics models of some basic physical variables, such as time, mass, force, velocity and acceleration, etc. thus we can build an integrate system. then we can do some research work about the models " behavior properties, such as collision, collision response and invert kinematics, and so on

    在此基礎上,對經典力學中的基本物理量如時間、質量、受力、進行計算機圖形學建模,以期建立一個完整的理論體系,然後在這個體系基礎之上研究模型的行為屬性,如干涉、碰撞以及碰撞后的響應、 .關聯物體的
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