relative acceleration 中文意思是什麼

relative acceleration 解釋
相對加速度
  • relative : adj 1 關于…的，與…有關系[聯系]的。2 相對的；相關的；以（他物）為準的，相應的，成比例的 （to） 相...
  • acceleration : n. 1. 加速；促進。2. 【物理學】加速度；變速。3. 【教育】加速升級。
  1. In this paper, the concept of acceleration ambiguity function ( aaf ) and acceleration resolution is put forward for the first time. using aaf, the effects of target ' s relative acceleration on several outputs of a linear - phase matched filter are analyzed, such as the output signal - noise - ratio loss, the doppler resolution, the constraint on optimal accumulative time ( opt ) and their tolerable limits

    論文首次提出並研究了加速度模糊函數和加速度分辨力的有關概念，並以加速度模糊函數為分析工具，詳細討論了加速度對線性相位匹配濾波器的輸出信噪比的損失程度、對多卜勒頻率分辨能力的影響程度、對最優相參積累時間的約束關系以及線性相位匹配濾波器輸出受加速度影響的容限等問題。
  2. The representation of aaf and its resolution not only enriches relative theory of radar signal processing and is instructive in radar parameter design and performance analysis, but also provides a practical method to quantitatively evaluate the acceleration effects on signal processing

    加速度模糊函數及其分辨力的概念不僅豐富了雷達信號理論的有關內容，為雷達參數設計和性能分析提供了一定的指導意義；而且也為實際工作中定量地衡量加速度對信號處理的影響提供了分析手段。
  3. So in fact, if they senesce just a tiny tiny bit over time - - that is, if their half - life gets shorter, very very slowly - - we wouldn ' t actually be able to tell that this was happening in the time that we took our measurements, because the acceleration in the rate of atoms decaying ( relative, of course, to the number that had not decayed already, which is always decreasing ) would be too tiny to be statistically detectable

    所以在事實上，如果它們隨時間衰老得只那麼一點點， ?就是說，如果它們的半衰期縮短得非常慢?那麼我們實際上不可能知道，在我們測量期間發生過衰減，因為原子衰減的速率加速得太小，統計學上檢測不出（當然，是相對于不曾衰減的數目而言，不曾衰減的原子數目總是在減少） 。
  4. Some conclusions are drawn : 1 ) effect of inertial force from superstructures on the lateral seismic response of single pile can not be ignored ; 2 ) the lateral seismic response of single pile induced by far - field earthquake are mainly affected by acceleration mass of superstructure > site eigenperiod. it increases with the increment of accele ration and mass of superstructure. as the site characteristic frequency approaches the self - oscillation frequency of the pile, sympathetic vibration occurs and the value of lateral seismic response reaches maximum ; 3 ) as the stiffness ratio of pile to soil increase, the relative displacement of pile to soil increases ; 4 ) the lateral seismic response of fixed - head pile is much smaller than that of free - head pile

    將其解析解與具體的的抗震設防烈度和場地特徵周期結合起來，計算分析了成層地基中單樁的橫向地震響應，得到了以下結論： 1 ）上部結構慣性力對樁的橫向地震響應的影響不可忽略； 2 ）成層地基中的單樁的橫向地震響應主要受地震基本加速度、場地特徵周期、上部結構質量的影響，隨地震基本加速度、上部結構質量的增大而增大；場地特徵頻率越接近樁基自振頻率，樁基地震響應越大，等於自振頻率時，由於發生共振現象，樁基響應幅值最大； 3 ）樁土剛度比越大，樁土之間的相對位移的幅值越大； 4 ）樁頂固接的連接方式，可以有效地降低地震時單樁的橫向地震響應。
  5. Several semi - active control algorithms used in the semi - active suspension system with mr dampers are proposed and developed including the " on - off " voltage controller, the continuously linear variable voltage controller, the modulated continuously linear variable voltage controller based on " sky - hook " damping concept and the hybrid controller based on the combination of " sky - hook " damping concept and " ground - hook " damping concept and the fuzzy logic controllers using measurements of the relative displacement between the sprung and unsprung mass or the absolute acceleration of the sprung mass as the input variables of fuzzy logic controllers. the simulation models were prepared in matlab ? simulink ? fuzzy toolbox programs. the experiment setup of the semi - active suspension system with mr dampers in the lab has been designed and developed

    根據磁流變阻尼器特性和對懸架系統動力學特性的規律性研究，為磁流變阻尼器設計了基於「天棚」阻尼控制概念的「 on - off 」 、線性連續和修正的線性連續控制策略，基於「地棚」阻尼控制概念的磁流變阻尼線性連續控制策略， 「天棚」阻尼和「地棚」阻尼控制概念線性組合起來的磁流變阻尼混合控制策略，根據模糊控制原理設計了以簧載質量和非簧載質量間相對位移或簧載質量加速度分別作為輸入變量的模糊邏輯控制器用於磁流變阻尼半主動懸架的智能控制。
  6. Laboratory centrifuges ; centrifuge tubes for relative centrifugal acceleration up to 4000

    試驗室用離心機.相對離心加速度在4000以下的離心機管
  7. 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運動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度測量的基礎上增加角度變化率及相對運動的離心加速度等運動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度及其變化率信息定位和利用離心加速度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等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動目標跟蹤方法和模型，提出了利用角度及其變化率對機動輻射源跟蹤的多級噪聲自適應方法和imm方法；第六章主要對角度變化率和離心加速度參數的獲取技術進行了研究，提出了幾種高精度測量脈沖序列多普勒頻率變化率的方法。
  8. On the basis of theoretic analysis and numeric calculation, the author verifies that only is the ratio of the fundamental period of the structure to the disturbance period beyond 1. 4, it ' s possible to achieve reductions in both the relative displacement and the absolute acceleration responses

    作者在此基礎上，從理論分析和數值計算兩方面證明了粘性變阻尼控制僅在結構周期與激勵主周期的比值大於1 4時才有可能同時減小結構的位移反應峰值和加速度反應峰值。
  9. Based on the invariability of dynamic equation, the interrelation among recursive equation of relative displacement, velocity and acceleration are also obtained

    通過動力方程的不變性說明了相對位移、相對速度和相對加速度三個遞歸公式的內在關系。
  10. Then, depending on this result, through mending some relative parts of the control system, the optimal acceleration process for the x - model aero - engine is achieved

    並以此結果為依據，對發動機加速控制系統中的某些部件進行改進。使其能起到控制發動機完成最優加速過程的目的。
  11. T he t esting d ata show that under the designed vibration waves, the lead alloy dampers are well functioning, not only reducing the strain at the ankle of bushing, but limiting significantly the relative displacement and absolute acceleration at the top of bushing

    試驗結果表明：在試驗設計確定的地震動輸入下，鉛合金減震器的減震效果良好，不僅降低了斷路器地震破壞指標? ?瓷柱根部應變，而且沒有顯著增加斷路器頂部的位移和加速度反應。
  12. To avoid collision with static and dynamic obstacles, the magnitude and direction of the acceleration of mobile robot was adjusted dynamically in real time based on the relative acceleration information

    相對坐標系中，採用包含相對加速度信息的避碰演算法，通過動態實時地調整機器人加速度的大小和方向，使其避開障礙物。
  13. ( 三 ) under the dynamic load of the explosion, the numeric analysis has been done and achieve the rule as follow : ( 1 ) when the frequency of vibration is 0. 3hz, the acceleration of the slopes top gets the maximum ; so 0. 3hz is believed the natural frequency of the slope as a whole ; ( 2 ) the vibration of explosion can been magnified because of the condition of the landform, when the relative altitude is up to 45m, the acceleration of horizon gets the maximum ; when the relative altitude is up to 100m, the absolute value of acceleration and the deformation of horizon is larger than that in the bottom of the slope ; ( 3 ) in the period of forced vibration, at the top of the slope, the acceleration of horizon become larger and larger ; at the middle part of the slope, it becomes smaller ; ( 4 ) when the explosion velocity of is much little, the shallow part destruction is the primary deformation of the slope

    （三）採用模態疊加法針對爆破動力作用，進行邊坡的動力響應分析，得出了以下結論： （ 1 ）振動頻率為0 . 3hz時，坡面頂部水平向加速度峰值最大；綜合考慮，可認為該邊坡的自振頻率為0 . 3hz左右； （ 2 ）地形對爆破地振動存在放大作用，研究剖面的坡面，水平向加速度及位移在地形相對高差45米左右最大，而後隨相對高差的增高而減小，相對高差為100米時，水平向位移及加速度絕對值均大於坡腳； （ 3 ）強迫振動段，水平向加速度值隨時間變化的規律為：坡頂節點總的變化趨勢是越來越大，而坡體中部節點的變化趨勢是越來越小； （ 4 ）當爆破振速較小時，變形破壞的形式表現為坡頂表面滑塌型。
  14. To avoid collision with the static and dynamic obstacles, we move the relative velocity away from the collisions field by adjusting the robot velocity value and direction real - time dynamically in acceleration space based on relative coordinates

    此方法是基於相對坐標系，在加速度空間中，通過動態實時地調整機器人自身速度的大小和方向使其離開碰撞區域，即碰撞危險區域，達到與動、靜態障礙物之間的避碰。
  15. It is found from the monitoring data that the response of the acceleration transducer is linearly relative to the compaction degree of gravel soils

    在大量室內試驗數據的基礎上，研究了振動壓實過程中加速度電信號響應隨碎石土密實度的變化規律，發現二者具有顯著的線性相關性。
  16. The frequency response functions of relative displacement and absolute acceleration are derived under acting of harmonic ground excitation

    推導了地面簡諧運動作用下的加速度和位移的頻率響應函數。
  17. This paper relates to some problems about the determination of design ground motion parameters, which include the choice of the attenuation relationship of rock horizontal acceleration response spectrum, the impact of focal depth to rock peak horizontal acceleration and rock response spectrum curves, the choice of intensity envelops function and random input phase, the choice of soil nonlinearity and shear wave velocity, scale of design ground motion response spectrum etc. in the researches of relative aspect, based on a typical section plane of the engineering site, influence of the change of some parameters on design ground motion parameters and the existing errors and corresponding rules are studied by using the method of one dimension model of equivalent linearization

    摘要研究了確定設計地震動參數中涉及的若干問題，其中包括基巖水平加速度反應譜衰減關系的選擇、震源深度對基巖水平加速度峰值及基巖反應譜曲線的影響、強度包絡線函數及輸入隨機相位的選擇、土體非線性特性參數和土層剪切波速值的選擇、設計地震動反應譜的標定等問題。
  18. The peak acceleration and the peak shear stress in superstructures increase with the increment of replacement ratio. parameters of softening model are obtained through seismic settlement tests of composite cemented clay samples and relative curves are plotted considering different replacement ratio

    通過復合試樣的震陷試驗，採用軟化模型的概念，得到了該模型有限元計算的有關參數，將這些參數和置換率的關系繪製成曲線並且給出了擬合公式。
  19. 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

    運動學分析：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，從而推導出等價齊次變換矩陣，建立兩機械手運動方程，確定工件作業點隨動坐標系，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速度、加速度值。
  20. The working principles are as follows : when the factors of the second order mechanics model are proper, the relative displacement, body to shell, is linear to the acceleration of shell. so the acceleration of the second order system is measured by measuring the relative displacement with the optical reflection displacement theory

    其工作原理是：當二階力學模型的參數選擇適當時，力學模型中的質量塊相對外殼的相對位移與外殼的加速度近似成線性關系，所以採用光纖反射式位移傳感原理測量二階力學模型中的相對位移就可以達到測量二階系統加速度的目的。
分享友人
分享到 Line

分享到臉書