撓向量 的英文怎麼說
中文拼音 [náoxiàngliáng]
撓向量
英文
torsion vector-
As an application of this fem preprocessing system, the simulation on the welding process of missile ’ s oil box was performed, in which the effects of the welding sequences of four web plates and welds on each web plate are primarily analyzed. the simulation results show that the deformations under varied welding sequences are almost the same. downward deflection deformation is obtained along the weld longitudinal direction in the structure as well as upward deflection deformation along the weld traverse direction
對于某型號導彈油箱結構焊接過程的數值模擬計算，主要考察了每塊立板上各段焊縫焊接順序的調整、四塊立板之間不同的焊接順序以及焊接起始端的選擇對結構焊后變形的影響規律，模擬結果表明:壁板在各種焊接順序下的整體變形規律基本相似，即焊後壁板沿焊縫縱向發生了向下的撓曲變形，中部向下變形量最大;沿焊縫橫向發生了向上的撓曲變形，壁板兩端部變形量較大，且壁板前端變形大於壁板後端。Along with the progress of drilling technology, many new types of bha such as steering motor assembly, dropping assembly with eccentric bend sub, dropping assembly with flexible connection are developed based on common building, dropping and holding assemblies. for using these bha, a new mathematical model is put forward for 3d static analysis of these types of bha under small deflection. and its weighted residual solution is given. the mathematical model includes ( 1 ) differential equations ; ( 2 ) boundary conditions at drill bit, stabilizer, bend angle, diameter change, tangential point and borehole wall ; ( 3 ) lateral forces and deflection angles of bit. the software based upon this method runs well
為了更好地應用各種新鉆具，建立了適用於對普通下部鉆具、導向鉆具、帶偏心彎接頭和柔性接頭的下部鉆具進行三維小撓度靜力學分析的數學模型，包括（ 1 ）微分方程； （ 2 ）鉆頭、穩定器、彎角、變截面、切點和井壁的邊界條件； （ 3 ）鉆頭的側向力和鉆頭轉角.給出了該模型的加權余量解.用該方法編寫的軟體應用效果良好They teach you to be proud and unbending in honest failure, but humble and gentle in success ; not to substitute words for action ; not to seek the path of comfort, but to face the stress and spur of difficulty and challenge ; to learn to stand up in the storm, but to have compassion on those who fall ; to master yourself before you seek to master others ; to have a heart that is clean, a goal that is high ; to learn to laugh, yet never forget how to weep ; to reach into the future, yet never neglect the past ; to be serious, yet never take yourself too seriously ; to be modest so that you will remember the simplicity of true greatness ; the open mind of true wisdom, the meekness of true strength
它們教導你：在光榮失敗時保持尊嚴，不屈不撓，但是在成功時謙卑溫和；不以空言代替行動；不找尋舒適的小徑，而是面對困難的壓力，以及挑戰的鞭策；學習在暴風雨中屹立，但是對跌倒的人寄與同情；在你想控制別人之前，先控制自己；有純潔的心，有高尚的目標；學習歡笑，但永不忘記如何哭泣；伸向未來，但永不忽略過去；嚴肅，但永不把自己看得過于認真；謙虛，以便你能記得真偉大的單純，真智慧的虛心，真力量的溫馴。The following important work has been done : ( 1 ) some special problems of rate - bias laser gyro were analysed. the problems include modulation and demodulation of the output and algorithm of the attitude updates ; ( 2 ) the integrated navigation system with the fault tolerance property which equipped with many navigation equipments as sins, gps, dvs, ads, mg, vg is designed, and compared with that of ckf via simulations ; ( 3 ) the theories and methods of system level fault detection apply to federated filtering is investigated ; ( 4 ) the problem about using the fused information of sins based on rate - bias laser gyroscope / dynamical tune gyroscope to realize the component level hard fault interactions detection through a back - propagation neural network is discussed
主要研究工作有：研究了速率偏頻激光捷聯慣導的陀螺測量信號的解調演算法；設計了在速率偏頻激光捷聯慣導、 gps 、多普勒雷達、大氣數據系統、磁航向儀及垂直陀螺配備條件下聯邦濾波組合導航系統，對聯邦濾波器和集中濾波器的性能做了模擬對比分析；研究了適用於聯邦濾波器的系統級故障理論和方法；探討了利用速率偏頻激光捷聯慣導撓性捷聯慣導陀螺的混合測量信息，通過神經網路實現硬故障交互檢測的方法。Nylon is one of the best quality snthetic fibers the rubber in dustry use nowadays. the nylon canvas is woven by nylon fibers both in warp and in weft, it is the most widely used fabric in rubb - er industry, and its outstanding merits are its high abrasion resistance. high fensile strength and good fatigue resistance. connvyor belts with nylon canvas inside have the characteristics of thin belt body, high tensile strength, good shock resistance, good troughability, high adhesion between pli - es, splendid flexibility and long working life. nylon conveyor belts are suitable for medium, long - di - stance and heavy - load transportation of materials, widely used in mining, metallurgical industry and architectural industry, ports and etc
產品說明:尼龍是橡膠工業目前所用合成纖維中性能最好的品種之一，其結構經緯向均為錦綸纖維編織，用途最廣的品種，它最突出的優點是耐磨性好，強度高，耐疲勞性好，尼龍帆布做成輸送帶具有帶體薄，強力高，耐沖擊，成槽性好，層間粘合力大，屈撓性優異及使用壽命長等特點，適用於中長距離，較高載量，高速條件下輸送物料，廣泛用於礦山，冶金、建築、港口等部門。In this thesis a new numerical method - the finite volume method is developed to achieve the static and dynamic large - deflection response analysis for suspension cables. the finite - volume division scheme is first established along the length of the cable and the deformation of each volume is defined using the common engineering strain concept. based on this strain definition the strain energy of the cable is determined
首先建立了懸索沿索長方向的有限體積離散格式，在變形后的構形上按工程方法求得了應變，並進一步得到了應變能和動能的計算式；再根據哈密頓原理導出了懸索大撓度振動的有限體積離散方程，推出了索的整體節點力向量、質量矩陣和切線剛度矩陣。Moreover, the director distribution symmetry to the mid layer of nlc celliias been broken by the flexoelectric effect. a new parameter a is introduced to express the symmetry breaking and has been investigated in detail
此外，本文還證明了撓曲電效應還會導致指向矢分佈對中間層平面對稱性的破缺，引入並詳細研究了表徵對稱性破缺的參量。According to different mechanisms, there exist several types of resonance, including the bridge resonance induced by the periodical actions of moving load series of the weights, centrifugal forces and lateral winds of vehicles, the bridge resonance induced by the loading rates of moving load series of vehicles, the bridge resonance induced by the periodical loading of train vehicles excited by rail irregularities, wheel flats and hunting movements, and the vehicle resonance induced by periodical actions of the regular arrangement of bridge spans and their deflections
根據發生機理的不同，車橋系統可能發生幾種不同形式的共振，包括由車輛重量、離心力、橫向平均風荷載等形成移動荷載列的周期性動力作用引起的橋梁共振，由移動荷載列加載速率引起的橋梁共振，由軌道不平順、車輪扁疤、輪對蛇行等周期性加載引起的橋梁共振；由橋跨的規則性排列及其撓度的影響，對移動車輛形成周期性動力作用使車輛出現的共振。分享友人