集中質量 的英文怎麼說

中文拼音 [jízhōngzhíliáng]
集中質量 英文
concentrated mass
  • 集 : gatherassemblecollect
  • 質 : Ⅰ名詞1 （性質; 本質） nature; character; essence 2 （質量） quality 3 （物質） matter; substance;...
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 集中 : concentratecentralizefocusamassgroupmassingput togather
  • 質量 : 1 [物理學] mass 2 （產品或工作的優劣程度） quality 3 economy （離子源的）; 質量標準 quality level...
  1. Neglect the axial deformations and consider only the lumped masses.

    略去軸向變形不計，僅考慮集中質量。
  2. The lumped mass matrix is a diagonal matrix.

    集中質量陣是一個對用陣。
  3. On - line inspection for machining center is one of the key technologies to improve precision and automation of machining center and one of the indiscerptible parts of the quality assurance system of computer integrated manufacturing system - cims

    加工中心在線檢測技術是提高加工中心工作精度和操作自動化程度的關鍵技術之一，是計算機集成製造系統（ computerintegratedmanufacturingsystem ? cims ）中質量保證系統不可分割的一部分。
  4. The third, after theoretically analyzing, the following practicable methods are put forward : 1 ) automatically pick - up the synchronous information by analyzing the spectrum of intercepted video - leaking information ; 2 ) realizing the phase lock and the electronic image stabilization by integral - projection and differential - positioning ; 3 ) improving the effect of accumulation mean filter and the pectination filter by using electronic image stabilization ; 4 ) automatically adjusting image acquisition parameters by detecting the image entropy, therefore the quality acquired image is improved ; 5 ) to realize the quantitative test of a leaking extent, a standard test picture was designed. finally, a proto type for leaking information processing based on our techniques mentioned above and the virtual instrument principle was designed and tested

    在理論分析的基礎上，提出了以下的實用技術： 1 ）用譜分析方法從截獲的信息中自動提取同步信息； 2 ）用積分投影、微分定位的方法進行相位檢測，實現可靠的鎖相和電子穩像； 3 ）將電子穩像技術用於重加濾波和梳狀濾波的濾波方法，改進了濾波效果； 4 ）通過檢測圖像信息熵實現圖像採集參數的自動調整，改進了圖像採集的質量； 5 ）設計了用於儀器定標的標準測試圖，可以對泄漏信息進行定量檢測。
  5. Then, the discussion of the influence of linear part, the lumped mass of the rigid links and the angular acceleration of flexible joint actuators on the non - linear dynamic character of flexible joint manipulator with flexible links is done

    問中還就關節線性項、桿的集中質量和關節驅動加速度對關節非線性特性表現的影響進行了討論。
  6. 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。
  7. Through newton ’ s law of motion, the continuous model of the cantilever is built. the author discretizes the model through lumped mass method and supposed modal method, analyzes the discretized model through influence coefficients method. compare the results of the two models ; the general analysis method of non - uniform beams is obtained

    其次，對懸臂梁結構進行了理論分析，應用牛頓運動定律，建立了懸臂梁系統的連續模型，並用集中質量法和假設模態法對懸臂梁系統進行了離散化，運用影響系數法對離散化后的系統進行了分析，並把分析結果和連續系統進行了對比，得到了變截面梁的一般分析方法。
  8. Vibration of uniform and nonuniform rods connected to a concentrated mass

    系有集中質量的均勻與非均勻彈性桿的振動問題
  9. On the basis of the work in xie et al. 5, xie et et al. 7 and liang et al. 8 established a dynamic repre - sentation of the groundwater table in a land surface model through reducing it to a moving boundary problem and solving it by the mass - dumped finite element method

    基於以上工作，謝正輝等7 ， liang等8通過將地下水位動態表示問題歸歸結為運動邊界問題，用有限元集中質量法直接求解，建立了地下水位的動態表示模型
  10. High - resolution multi - source direction finding is always a hot research area in array signal processing. the breakthrough of this technique is greatly meaningful in many research fields such as sonar, radar, communication, biomedical engineering, geology and so on

    陣列處理的高分辨技術一直是國內外十分關注的研究熱點，其中高分辨多目標定向技術是國內外集中力量研究的重點，該項技術的突破對聲納、雷達、地質勘探、生物醫學工程及水中兵器均有重要意義。
  11. Periodic, quasi - periodic and chaotic motions show on alternately when the rotating speed is near to 2 / 3 0. combined step - by - step integral method with traditional transfer matrix method, an increment transfer matrix method is put forward. based on riccati method, the increment transfer matrix method is used in a multi - mass model

    將逐步積分法與傳統傳遞矩陣法相結合，提出了增量傳遞矩陣法思想，文中相該方法應用於多段集中質量模型，並結合riccati法，推導了汽輪發電機組軸系彎扭耦合振動響應計算的矩陣表達式，並開發了一套較完善的汽輪發電機組彎扭耦合振動分析軟體。
  12. Sorting algorithm of the customer requirements in quality function deployment ( qfd ) based on rough set theory was studied

    摘要研究了基於粗糙集的質量功能展開中顧客需求的排序問題。
  13. To obtain the final importance ratings of the customer requirements in quality function deployment ( qfd ), a method based on rough set theory was proposed

    摘要提出了一種基於粗糙集的質量功能展開中顧客需求的最終重要度確定方法。
  14. In this article, the author stimulates some complex sites using two - phase media motion differential equations, finite element lumped - mass method and multi - transmitting formula

    本文利用兩相介質運動微分方程和集中質量有限元法，並結合透射邊界對幾種復雜場地對地震波傳播的影響進行了模擬。
  15. The main contents and innovations are as follows : 1. centralized mass method was used to get the dynamic model of the mechanism and some essential parameters of the model were solved

    具體內容和創新歸納如下： 1 ）利用離散化集中質量法建立了開牙凸輪機構的動力學模型，計算出了模型的基本參數。
  16. First, based on a field large - scale dynamic soil - box foundation - frame structure interaction system in hunan university, a 3 - d finite element model and a 2 - d lumped mass model are established in this paper

    本文針對湖南大學建立的野外大比例尺土-箱型基礎-框架結構動力相互作用模型，首先建立了兩種分析計算模型:三維實體有限元模型和二維集中質量模型。
  17. According to two - dimension flow continuity, momentum equations, suspended sand diffusion equations and two - phase flow bed sand motion equations, hydraulic - dynamics sediment accumulation mathematical model between two impounding dams was set up by adopting the methods of weighting and concentrating masses

    根據二維水流連續、運動方程、懸沙擴散方程和兩相流底沙運動方程，採用加權集中質量剖分方法，建立了蓄水兩壩間水動力、泥沙淤積數學模型。
  18. The frequence and modal of main stream piping were analysed under the condition of different velocity of stream and the valve taken as the centralizing mass. this paper also gives the responses of steady state under the condition that the frequency of forced vibration is 4hz 、 8hz 、 12hz respectively

    將閥門作為集中質量處理，分析計算不同蒸汽流速下，某汽輪機主蒸汽管道系統的振動頻率和振型，並給出了激振力頻率分別為4hz 、 8hz 、 12hz時該管道系統的穩態響應。
  19. To assure astringency, some technologies have been used such as iterative penality function methods, assemblage mass matrix, reduced integration algoritlun, newton iteration method with parameters for non - linear equation set, introducing relax factors and double steps solution and so on, and an algorithin for solving the nonlinear equation set of flow field by fem has been presented

    基於有限元法建立了流場求解列式，為保證其收斂性，採用了迭代罰函數法，集中質量矩陣，縮減積分計算，帶參數的newton迭代求解，引入松馳因子及雙層解法等技術，提出了一套適合流場有限元方程計算的非線性方程求解方法。
  20. Third, through employing the 2 - d lumped mass model and the single period objective function inversion method developed in this paper, and taking the measured structure response to a harmonic excitation at the top of structure in field as the reversion objectives, the linear physical and mechanical parameter inversion is performed in ansys by using apdl

    第三，採用二維集中質量模型和本文提出的單周期目標函數反演方法，把頂部激振下實測的結構動力響應作為反演目標，利用apdl語言，在ansys軟體中實現了系統線性物理力學參數的反演。
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