翼加載 的英文怎麼說
中文拼音 [yìjiāzǎi]
翼加載
英文
wing loading-
With additional capabilities in rotorcraft, electronic and defense systems, missiles, rocket engines, satellites, launch vehicles and advanced information and communication systems, the company ' s reach extends to customers in 145 countries
加上旋翼飛機、電子和防禦系統、導彈、火箭發動機、衛星、運載火箭和先進信息及通訊系統等方面的研製能力,本公司的客戶已經遍及145個國家。The main popular theoretical method adopted to study end - plate connection is finite element technique under monotonic loading at present. this paper applies nonlinear ( material, geometry and contact ) finite element method to analyze the behaviors of connections under cyclic load at fist time. contact elements are set between end plate and column flange, screw cap and neighborhood plane, bolt bar and hole
對于端板連接的理論分析,目前國內外的研究主要局限在單向加載有限元分析范疇,本文首次採用三維非線性(包括材料、幾何與狀態非線性)有限元對端板連接進行了循環加載分析,端板與柱翼緣間、螺栓頭(帽)與相鄰板件間、螺栓桿與孔壁間都設置了反映邊界狀態的接觸單元。In this thesis, four types of steel beam - rectangular cfst column connections, including normal welded flange plate ( wfp ) connection, bolted flange plate ( bfp ) connection, stiffened end plate ( sep ) connection and double split - tee plate ( dst ) connection, were designed based on the configuration of steel frame connection. total 8 models, 2 models of each kind of connections were tested under low - reversed cyclic loading at the end of cfst columns. the relationships between force and displacement at the end of columns, the relationships between the moment and rotation of the joints, degradations of strength and stiffness, ductility, failure mechanism and failure characteristics of these four connections under different axial - compression ratios were presented
本文借鑒鋼框架節點構造,設計了四種類型矩形鋼管混凝土柱與鋼梁連接節點,包括常規栓焊( wfp )節點、翼緣全螺栓連接( bfp )節點、雙t板連接( dst )節點以及加勁端板連接( sep )節點,進行了四類節點8個模型試件在柱端低周反復荷載作用下的抗震性能試驗研究,比較了不同軸壓比下節點的滯回性能、強度與剛度退化、延性、破壞機理與破壞特徵,主要結論有: 1 、節點的位移滯回曲線與轉角滯回曲線為塊型分佈,沒有或略有捏攏現象,耗能能力強; 2 、軸壓比對節點滯回曲線有顯著影響,全部節點都有顯著的剛度退化; 3 、位移與轉角骨架曲線在峰值荷載後有較長的水平或下降段,具有良好的延性性能; 4 、從整體抗震性能上看,翼緣全螺栓連接節點、雙t板連接與加勁端板連接節點都優于常規栓焊節點,可在實際工程中加以推廣。The software designed for the system is validated by experiments and proved correct. the system can s imulate the real air - stream and put it on missile ' s wings to make them work under the same force environment as the real spread process, so the relationship of explosive stuff and attack angle can be calculated
本文所設計的監控軟體已通過實際系統的驗證,說明整個系統的設計是合理正確的,能夠真實的模擬力矩,產生一種類似真實氣流阻力的載荷,並將其正確施加於彈翼(尾翼)上,使彈翼(尾翼)能在與展開過程中實際受力相同的狀態下工作。Tape helix model of helical slow - wave structures with vane - loaded
翼片加載螺旋線慢波結構的螺旋帶模型Integrally cast body ribs, running parallel and perpendicular to the pipe axis, impart additional strength for high pressure conditions, thermal and pipe loads
整體鑄造閥體翼肋,與管路軸線平行和垂直,增加了閥體強度,適用於高壓環境、高溫和管道負載。Problems appearing at work and tackling methods are both presented. recently, the research result has been applied to the helicopter airscrew harmony loading test. the results of harmony loading test show that it has high performance
目前,論文的研究成果已經成功地應用在某型直升機旋翼載荷模擬加載試驗系統中,實際加載試驗表明,該加載控制系統能很好的完成加載試驗控制,保證系統的控制性能指標。The paper introduces the structure of helicopter airscrew loading system and constructs the mathematical model of single channel loading system and analyses its dynamic performance
論文介紹了直升機旋翼加載系統的結構,在建立了單通道加載系統的數學模型的基礎上,分析了加載系統的動態性能。When escape system is activated, the grille wings at the upper fairing will open, supporting frame will pick up the orbit and returning modules, the lock between the returning and propelling modules will release, the lock between the upper and lower fairings will release, escape rocket will be ignited and finally pull the escape flight vehicle away from the rocket
該系統由逃逸塔和上部整流罩組成,逃逸系統加上飛船的軌道艙和返回艙構成逃逸飛行器。當需要逃逸時,上部整流罩上的柵格翼打開,支撐機構夾住飛船軌道艙和返回艙,然後返回艙與推進艙解鎖上下整流罩解鎖逃逸發動機點火,逃逸飛行器飛離運載火箭。This expression vector plbcas - hsa - lgl has the following advantages : i ) the 1. 7kb promoter is able to drive cell - specific and hormone - dependent expression ; ii ) the inclusion of intron - 1 can increase expression level of fusion genes ; iii ) the 5 ' utr of bovine p - casein mrna may have a positive role in both transcriptional and post - transcriptional regulation ; iv ) the gfp gene make the selection of positive clone among embryos possible ; v ) the gfp gene can be easily excised via cre - mediated recombination between the two loxp sites after the expression vector has been integrated into chromosome ; vi ) the two incompatible lox sites, loxp and lox2272, would facilitate cre - recombinase mediated cassette exchange ( rmce ), which in theory will leading to develop a technology of site - specific gene expression in animal mammary glands
該載體的特點是:具有可以調控外源基因在乳腺中特異表達的牛-酪蛋白基因5 `端側翼區和包括第一外顯子及內含子在內的5 `端調控區;將人血清白蛋白cdna準確地置於牛-酪蛋白基因第二外顯子中的翻譯起始密碼子atg之後,而且沒有增加額外的序列和使人血清白蛋白cdna移碼;引入標記基因gfp ,便於在胚胎期鑒定陽性胚胎,減少受體;引入cre lox重組系統: ( ? )標記基因gfp的兩端的兩個loxp位點可以在表達載體整合到基因組后,刪除標記基因; ( ? )餘下的一個loxp位點可以和前面的lox2272位點組成cre重組酶介導的盒式交換系統。The load control system has already passed the test ' s validate. it shows that the design of whole system is correct. the system can truly simulate the real air - stream and put it on missile ' s wings to make them work on the same force situation as in the real spread process, so the relationship of explosive stuff and attack angle can be confirmed
本文所設計的加載控制系統已通過實際系統的驗證,說明整個系統的設計是合理正確的,它能夠真實地模擬類似真實氣流阻力的載荷,並施加於彈翼或尾翼,模擬其在真實工作環境下的受力狀態,可以測算導彈攻角與火工品填藥量的關系。In accordance with new standards for cockpit security promulgated by the international civil aviation organisation, cad issued a flight operations notice in august 2002 requiring all hong kong registered passenger aircraft with a maximum certified take - off mass in excess of 45 500 kg or with a passenger seating capacity greater than 60 to be equipped with an approved flight - crew compartment door of a reinforced standard, including a surveillance system, by 1 november 2003
民航處於2002年8月根據國際民航組織新的駕駛艙保安標準發出了飛行運作通告,要求由2003年11月1日起,所有在香港登記的定翼飛機,如其最大審訂起飛質量超過45500千克或批準載客數量超過60人,必須裝備配有批準的監視系統及已加固的駕駛艙艙門。After comparing between the finite - element analysis and experimental results, the author verified the fem. then according to the chinese code, the nonlinear finite model of the beam - to - column is established which are made of different size components. the responses of beam - to - column web moment connections which are made of different size components are compared and analyzed from three facets, and the conclusions about the joints behavior are drawn : thicken the connection plate, lengthen the connection plate or use a back - up stiffer can improve the connection behavior, consist of improving the behavior of load - supported and reducing the stress convergence in the flange moment plates
本文根據我國規范的有關規定,自行建立了12個不同構件尺寸的樑柱腹板連接的三維有限元模型,對不同構件尺寸的樑柱腹板剛性連接節點在單向荷載作用下的反應進行了研究,從結構的mises應力等值線示意圖、梁端加載處的荷載? ?位移曲線、翼緣連接板兩端的mises等效應力以及翼緣連接板與柱相連接的三邊的mises應力等值線示意圖四方面進行了比較與分析,從而得出了不同構件尺寸的樑柱腹板剛性連接的在受力行為上的結論:增加翼緣連接板的厚度、增加翼緣連接板的長度以及採用柱的橫向加勁肋均可以改善節點的受力性能:提高節點的承載能力;減小翼緣連接板內部與柱翼緣邊的的應力不均勻現象,從而避免試件過早地發生破壞。Included three positions system, the helicopter airscrew electro - hydraulic servo loading system has coupling nexus of three positions and three loadings. trough analyzing nexus of the displacement and the force, this paper designs the three channels electro - hydraulic servo loading system basing on the analysis of single channel electro - hydraulic servo loading system. surplus torque, which is produced through position disturbance, is a chief problem facing aerodynamic loading system
直升機旋翼的操控通過三個助力器完成,模擬負載時把旋翼所受空氣動力折算到了三個助力器上,由於三個助力器是鉸點在一個模擬盤上,所以三通道加載系統與三個助力器位置系統有一定的耦合關系。Based on the hardware structure and operation principle of the missile rudder electric loading system, the causation, mathematic model and test method of surplus torque are analyzed
基於實時性要求極高的導彈尾翼電動加載系統的硬體結構和控制原理,研究了多餘力的產生原因、理論計算和消除方法。The rayleigh - ritz method is used to lead to analytical expressions for the stiffness and mass matrices and load vector as well as their sensitivities, which uses the simple polynomials to define assumed displacement functions, geometry and construction of wing structures. excluding some selected terms from the displacement functions or using stiff springs at the specified locations imposes boundary conditions. the accuracy of calculated results is improved by including transverse shear effects and using multiple sets of ritz functions in the analysis
它使用簡單多項式作為ritz基函數、定義翼面的幾何和結構參數,利用rayleigh - ritz方法導出翼面結構的剛度矩陣、質量矩陣和載荷向量及其靈敏度的解析表達式,通過排除位移函數中某些選定的項或在指定點使用約束彈簧施加各種邊界條件,考慮橫向剪切變形和使用多組ritz基函數改進分析的質量,使用等效蒙皮和等效夾芯技術提高計算效率。The results of research show that the rotor thrust increase 4 % and the download force on the wing can be as large as 10 percent of the total rotor thrust
研究結果表明:旋翼的拉力大約增加4 ,旋翼的下洗載荷相當于整個旋翼拉力的10左右。The integral seismic behaviors of other three kinds of connection, namely bfp, dst, and sep connections are better than that of normal wfp connection. by the way, finite - element ( fe ) analyses were conducted to predict the influence on cfst structure under different kinds of elements, mesh density, load manners and boundary conditions. after that, a special program was designed to define the constitutive relationship of concrete material in cfst structures based on apdl in ansys program
此外,本文探討了不同的單元類型、不同的網格劃分密度、加載方式與邊界條件對鋼管混凝土組合結構數值計算的影響,運用ansys中的apdl語言,編寫了適合鋼管混凝土結構分析的混凝土材料本構關系程序,並運用該程序結合ansys對常規栓焊節點與翼緣全螺栓連接節點的滯回性能進行了初步計算,為進一步地數值分析打下了基礎。A distributed computer control system which is used in an helicopter airscrew multi - channel harmony loading test project is introduced in this paper. the paper analyses the construct and the model of the system
論文結合實際的工程項目,以某型號直升機旋翼氣動載荷模擬為研究內容,對加載計算機控制系統的組成、系統數學模型進行分析和研究。分享友人