最小重量設計 的英文怎麼說

中文拼音 [zuìxiǎozhòngliángshè]
最小重量設計 英文
minimum-weight design
  • : 副詞(表示某種屬性超過所有同類的人或事物) most; best; worst; first; very; least; above all; -est
  • : Ⅰ形容詞1 (體積、面積、數量、強度等不大) small; little; petty; minor 2 (年紀小的; 年幼的) youn...
  • : 重Ⅰ名詞(重量; 分量) weight Ⅱ動詞(重視) lay [place put] stress on; place value upon; attach im...
  • : 量動1. (度量) measure 2. (估量) estimate; size up
  • : Ⅰ動詞1 (設立; 布置) set up; establish; found 2 (籌劃) work out : 設計陷害 plot a frame up; fr...
  • : Ⅰ動詞1 (計算) count; compute; calculate; number 2 (設想; 打算) plan; plot Ⅱ名詞1 (測量或計算...
  • 重量 : weight; scale; heft
  • 設計 : devise; project; plan; design; excogitation; layout; layout work; styling
  1. Thus proposes an alternative method for the research of superiority of two predictors based on the biased estimation. in the light of the approximate multicollinearity of matrix, distance for principal components estimation ( namely distance ) is put forward

    針對矩陣的多共線性問題,為了改進基於二乘估的統診斷cook距離,提出了基於massy主成分下的cook距離( mpcc距離) 。
  2. Choose two nodes on the edge of the structural to compare the results calculating by the finite element program midas, then we can draw a conclusion that these kinds of space truss systems is sensitive to the libration of the dynamic wind loads. to consider this factor is very necessary in the process of design, we will use the pulsant augmentation coefficient to realize it

    比較靜力風荷載和動力風荷載作用下的有限元軟體的算結果,選取結構邊緣部分的兩個節點,對比它們在兩種方法算下的大位移的算結果。經過比較可以看出輕、頻率低、阻尼的柔性建築物對風荷載的橫向振動是很敏感的,在進行工程時應該考慮這種因素,並可採用乘以風振系數等相應方法來加以體現。
  3. On the premise of a given set of material parameter, structural boundary shape and condition, design variables - thickness of plate and shell, is designed to minimize the structural weight subjected to the constraint conditions. 1. for the problem with size and stress constraints, full stress design method is used to solve the sectional optimization of plate and shell structures

    在給定了板殼的材料常數、板殼結構的邊界形狀和邊界條件的前提下,確定表徵板殼厚度的,在滿足約束條件下實現結構: 1 .對于尺寸和應力約束的問題,使用滿應力方法求解。
  4. It ' s reflected in four aspects : teaching target, teaching resources, teaching tactics and teaching assessment. the determination of teaching contents is the emphasis, and the teaching contents is determined by teaching target ; the collection of material ( teaching resources ) is the difficulty - compose a script after making a careful study of the teaching material, then collect the material according to the script ; teaching tactics are embodied by the determination of information form and by the way in which the contents accord with the form so as to get the best result in teaching ; making teaching assessment guarantees the quality of the software. in the early making period, the original model method of system engineering is adopted to produce small experimental courseware and a further revision and improvement are made in consultation with some experts. also an agreement on the demand of the software system is reached. in the later making period, the software is appraised by experts from its stability, serviceability reasonableness of construction, and the scientific nature of contents, then it is put into use as an experiment. finally those who use it are required to fill the teaching feedback table

    教學理論是靈魂,它貫穿于整個軟體編制過程,從四個方面來體現:教學目標、教學資源、教學策略、教學評價。教學內容的確定是點,根據教學目標來確定教學內容;素材的收集(教學資源)是難點,在鉆研教材的基礎上撰寫腳本,根據腳本去收集素材;教學策略體現在信息形式的確定,以及如何使內容與形式協調一致,達到教學優化的效果;而進行教學評價是本軟體質的保證,在軟體的製作的初期,採用系統工程論的原型模型法,開發出實驗性課件,在徵求專家的意見的基礎上進一步修改、完善、確認軟體系統的需求併到達一致的理解,在軟體製作的後期,再請專家從軟體的穩定性、可操作性、結構的合理性、內容的科學性等方面進行鑒定,後將軟體作實驗性投入使用,再讓實驗對象填寫教學反饋信息表。
  5. Taking thickness of web members and main chords as design variables and the lightest weight of crane booms as objective junction, considering constraints of rigidity and stability etc., this paper establishes the math model of optimal design

    摘要選取起機臂架的腹桿壁厚和各節臂架的主弦桿壁厚為,以為優化目標,考慮剛度和穩定性等約束條件,建立優化數學模型。
  6. Aiming at such problems in combustion system of homemade middle and miniature boiler, as a complex system with the character of dead zone, time variation, serious non - linearity, large time delay, coupling and a lot of disturbance, this paper presents a new set of optimal control resources. by using well - matched control method on system, stable automatic running is realized. having the serious divulgence coals difference a lot from each other in character, instability of chemistry, value of lowest emission of heat, home - made boiler controller is not at all ideal. instead of traditional model that controls the ratio based on proportional control or with the correct signal of the amount of oxygen, this paper, combined with intellect control theory - - fuzzy control and self - optimizing concept, propounded a kind of fuzzy self - optimizing controller to be used in air supplying system of the boiler, and expatiates on the idea of dividing the control process into two parts, dynamic and static to realize, thus meets the demand of homemade boiler economic running

    針對國產中、型電站鍋爐燃燒系統參數時變、嚴非線性、干擾因素復雜、耦合嚴、模型不易確定的特點,提出多變協調控制方案,解決了系統可控性差,難以實現穩定自動運行的問題;在此基礎上,改變以往以煙氣含氧控制送風的傳統模式,針對國產電站鍋爐備主體及一、二次送風迴路泄露嚴,煤種混雜、成分不穩定、燃燒發熱值低、燃燒效率不高等問題,應用智能控制理論中的模糊控制技術,結合自尋優控制的思想,了一種模糊自尋優控制器,應用在電站鍋爐送風控制系統上,並闡述了動靜態兩種實現途徑,通過在線優化風煤配比,實現佳經濟燃燒,切實保障了鍋爐的經濟運行。
  7. In this paper, the contrast of original image is enhanced by nonlinear transformation based on the characteristics of grain image ; after comparing several methods of threshold segmentation and analyzing their performance and applicability on grain image, the adaptive threshold segmentation based on gradient image is presented ; the noise of binary image is reduced with morphological filter, the hollow in binary image is filled in and a recognition algorithm is designed to remove agglomerate particle ; on the basis of mathematical morphology two methods are adopted to segment agglomerate grains that are not agglomerated tightly ; the parameters of size and shape, perimeter, area, diameter, complexlity, longest feret diameter, shortest feret diameter etc, are extracted. this technique is applied in measurement of pearl powder ' s particle size

    本文根據粒度圖像的特點,採用非線性對比度增強處理改善顆粒顯微圖像的對比度;對多種閾值分割方法進行比較,分析了它們的性能和用於粒度圖像的適用性,在此基礎上提出了一種基於梯度圖像的動態閾值分割方法;對獲取的顆粒二值圖像進行形態濾波和空洞填充,了識別演算法去除凝聚體;對疊不太嚴的粘結顆粒採用了兩種基於數學形態學的分割演算法;提取了周長、面積、粒徑、復雜度、長feret徑、短feret徑等大和形狀特徵參數,對珍珠粉等粉體粒度進行了測
  8. To avoid the serious electromagnetic interferer, the analog signals are transformed to frequency pulses which are transferred to the kernel of the system. in the measure of the groove voltage, the method of float - ground is adopted to avoid the high common signal and the range switch circuit is designed to solve the conflict of the wide dynamic range and the high precision. least square curvefit is adopted to reduce the system error

    鋁電解生產現場電磁干擾非常嚴,為此我們將需要測的模擬信號就近轉換為頻率脈沖后再傳送到控制核心;採用浮地接入方式消除槽電壓信號中的共模成分;程自動切換電路以解決槽電壓的動態范圍寬和測精度高的矛盾;用二乘法進行曲線擬和以降低測的系統誤差。
  9. Comparing and analyzing the synchronous control strategy, which brings up the new method to control the double un - symmetry jars proceed synchronously with the combination of proportional valve and servo valve, which forms closed loop control ; basing on the above methods, models are made to get mathematics models of position control system and to analyze system model theoretically by using pid controller, we can realize regulating parameters, minimizing synchronous errors and enhancing the dynamic performances ; the simulink tool box in matlab software is used to imitate the system according to the model, which not only makes the result visual and easy to adjust the parameters in interactive way but also lets us understand the effects of different parameters and optimizes the dynamic properties. the theory of plc control in dshp is discussed after advanced understanding of the system movements. hardware design and general regulation are given on the base of siemens company products s7 - 200 plc

    本文根據大的國內外文獻,對研配液壓機的工作原理及結構進行了簡介;對位置同步的控制方法進行了比較分析,提出比例閥和伺服閥復合控制的閉環結構來對非對稱雙缸進行同步控制電液比例同步控制方案;在此基礎上著對比例閥控非對稱缸建模,後得到位置控制系統的總體數學模型,從理論上對同步系統動態特性進行了分析,並用pid控制器進行參數整定,減雙缸同步誤差、提高系統的動態響應性能;其中控制性能的分析藉助于matlab軟體中的simulink工具箱,由已建立的數學模型形成模擬模型,得到可視化的模擬結果,從而利於交互方式下調整參數,了解不同的參數對系統的影響,優化同步系統的動態性能;在深入了解系統的動作特性后,對plc控制研配液壓機的原理進行了探討,針對siemens公司s7 ? 200型plc給出了硬體的總體規劃,編制出研配液壓機動作控製程序,在編程中著研究位移傳感器與plc的通訊、雙缸同步運行的pid控制在plc上的實現及bcd碼撥盤輸入程序的植入問題。
  10. In the end of this thesis, basis on the structure dimension of a specifically submarine, some solutions for strengthening structure are discussed, such as increasing the thickness of shell, reducing the spacing of frames, increasing the bending inertial moments of frame and setting the intermediate stiffer, when the extreme diving depth becomes 450m or 600m. comparing these structure weights, the excellent solution is the lightest structure

    本文後以某核潛艇指揮艙的結構形式作為算實例,對下潛深度分別增加到450米和600米的情況,選擇增加殼板厚度、縮肋骨間距、增加肋骨尺寸以及加中間支骨等加強方案,經分析確定其中結構輕的方案為方案。
  11. 2. considering the characteristics of topology optimization of structures with discrete variables, a mathematics model of topology optimization of structures with discrete variables, including sectional variables and topology variables, with the aim of getting the minimum weight of the structures, is built up in this paper. this paper develops a from easy to difficult structure stability analysis mechanism, which

    2 .論文針對離散變結構拓撲優化的特性,建立了包含截面和拓撲,以結構化為目標的離散變結構拓撲優化數學模型,採用了由易到難的結構機動性分析機制,大大減少了結構分析次數。
  12. Then i finish the analysis from three aspects, instruction of circuit, stress of surrounding, and tolerance, thus providing basis of design. the following designs are in progress from four aspects, which are circuit design, thermal design, derating using and screening. at last, i make the update generator in batch process, and collect and analyze reliability dates again

    首先進行了與可靠性相關的數據收集與分析,對故障模式進行統;然後從電路結構、環境應力及容差三個方面進行可靠性分析,從而為關鍵的可靠性提供了依據;接下來的可靠性,從電路、熱、降額使用、篩選四個方面逐一解決了可靠性分析階段發現的問題;後,我將改良的發生器批生產,並從中新收集了可靠性數據進行算,事實證明改良后高頻無極燈的平均壽命已達到6萬時。
  13. Based on the analysis of designed cad graphics and the given parameters, computer can convert the cad graphics to a acdbpolyline which can simulate the routine of the conveyor chain. then by using the method of point - by - point strain calculation, computer could figure out each point ’ s strain of the chains under different load states, and get the results such as strain ’ s maximal and the minimal values and their positions, weight of the strain equipment and power of the drive electric - machinery that the conveyor need

    通過對的cad圖形和給定參數的分析,將輸送鏈運行軌跡轉化為一條可模擬輸送鏈軌跡的多義線,然後用逐點張力演算法動態地算出各種加載狀態下輸送鏈上各點的受力,得出大、受力點的力的大和位置,拉緊裝置的,驅動電機所需的功率等結果。
  14. Then, we establish the finite element analysis models of the antenna in different structure layout, and obtain the corresponding frequencies and model shapes. finally, according to the importance of each object, we set up the model of multiple objects that aims to maximize the first natural frequency and minimize the mass. combining orthogonal experiment and variant weighting coefficient method, we formed an effective multiple objects optimized algorithm basing on the neural network and genetic algorithm

    本文首先詳細的敘述了天線結構的各組成單元,闡明了天線反射拋物面的形成原理;然後在ansys軟體環境中建立了不同結構布局下天線的有限元分析模型,分析算了各種情況下天線的的固有頻率與振型;後依據天線各指標的要性,建立了以一階固有頻率大、質為目標的天線結構多目標優化模型,並基於神經網路和遺傳演算法,結合正交實驗和變加權系數技術,形成了一種有效的多目標優化演算法,在matlab平臺下實現了天線的結構多目標優化算程序,求得了天線的佳結構參數。
  15. The retaining wall reclining on the slight slope built on soft foundation is usually used in protecting the shore of river, the contradiction between the lack of impartiality in stress of the base and the small stress allowed by the foundation as well as the lack of stabilization of the breast wall is a hard nut to crack in the engineering. in the paper, a tenon - base is added under the base of the retaining wall, on the study of the choice of the parameters and formulas used in calculation and the research of theory used in calculation, method used to deal with the load, etc, the writer gives a way to crack the nut mentioned above paragraphs and presents a qualitative and quantitative analysis about them, such as the equivalent inner friction - angle ( d ) and the passive press of the clay ( ep ), etc. in the end of the paper, using modern optimization method, a design of the retaining wall reclining on the slight slope built on soft foundation is done, the result is economical, and accords with the fact

    軟基上的仰斜式擋土墻在水利工程河道護岸中經常遇到,仰斜式擋土墻基底偏心應力較大和軟基土地基容許承載力偏的矛盾以及擋土墻抗滑穩定不足是工程中難以解決的難題。本文在對仰斜式擋土墻中有關算參數的選擇、公式的選用應該注意的問題進行了研究,對河道護岸軟基礎上的仰斜式擋土墻採用凸榫基礎處理的方法,就其算理論、驗算中各荷載的具體處理方法進行了較為細致的研究,提出了解決軟基礎上的水工仰斜式擋土墻難以解決的難題的方法,並對有水情況下粘土等效內摩擦角_ d 、凸榫被動土壓力e _ p等在算中的取值提出了定性和定的分析。後利用現代優化方法對軟基礎上的水工仰斜式擋土墻進行了結構優化,得出了符合實際的結果,與其它力式擋土墻形式進行比較,取得了明顯的經濟效益。
  16. The main purpose of this dissertation is to establish the deterministic and the stochastic model of minimum weight of the structure, and the optimization is based on the structural dynamic response reliability. the dynamic response of the structure under stationary or non - stationary excitations is investigated, then the dynamic reliability is calculated and the design variables of the structures are optimized

    本文點建立了基於動力響應可靠性的結構優化的確定性和隨機性模型,研究了結構系統在平穩或非平穩隨機激勵作用下的隨機動力響應,並在此基礎上進行了結構動力可靠性算和優化
  17. Adopting the method of modern optimization design, the research arrives at an optimal design of pneumatic rock driller that has a working capacity of great impact energy, low gas consumption, high chiseling speed, little vibration and light weight by optimizing the structural parameter of the machine which is with a bright future of market application with mult - goal

    本文採用現代優化方法,對市場應用前景十分廣闊的氣動鑿巖機的性能參數進行多目標優化,從而得到沖擊能大、耗氣少、鑿巖速度快、振動輕的方案。
  18. The design method of main mechanisms of the crane, which includes the winch section, rotary bearing, and the extension section, is described. the layout of directing ( triangle ) tri - joint mechanism, which affects the performance of crane greatly, is optimized. at the same time, the load of axles, the rated load capacity which depends on the tipping stability of the crane and the maximal support force of the out - triggers are calculated by the vb programs

    本文對于qy25型汽車起機的進行了研究,就汽車起機主要機構如起升機構、回轉機構、伸縮機構的型式及算方法做出了論述,對影響起機性能的三鉸點布置進行了優化,用vb語言對算繁瑣的起機橋荷、穩定性決定起大支腿反力的算進行了程序編制,對確定中、型汽車起方案,具有很強的現實意義。
  19. The minimum - weight model of stochastic structures under time - dependent random excitations is established based on the structural dynamic reliability

    建立了隨機過程激勵下的隨機結構系統基於動力可靠性優化模型。
  20. Optimum weight design

    最小重量設計
分享友人