起模架 的英文怎麼說
中文拼音 [qǐmójià]
起模架
英文
draw arm-
The paper described the building process of model that can identify the shock - absorber parameter of landing gear and at the same times optimize performance of system. in this paper, there are also some debate, it include identifying parameter which can not be measured, such as the air polytropic exponent and the orifice discharge coefficient of shock - absorber
本文利用復合形優化演算法建立了起落架緩沖系統參數識別與系統優化模型，對緩沖器空氣壓縮多變指數和油孔流量系數等不可測參數的識別和著陸、滑跑載荷多目標優化問題進行了討論。This paper begin with the concept system and system simulation, treat the landing gear as a system, use the concept of system simulation to establish the mathematical models of the landing gear, and to begin the simulation research
起落架軟體平臺的開發和應用在我國有著廣闊的發展前景。本文的目地是以系統模擬的概念入手，將起落架緩沖系統進行動力學的數學建模和模擬建模。In this paper, the mathematics model and simulation model of the passive landing gear shock absorber was built, and was verified by drop test. aimed at acquiring suitable efficiency diagrams, two simple semi - active control algorithms were designed. the mathematics model and simulation model of the semi - active landing gear shock absorber was built
在本文中，建立了被動控制起落架緩沖系統數學模型和模擬模型，並通過落震試驗對該模型進行參數校驗；以合適的功量圖為控制目標設計出兩種半主動簡單控制律，建立了半主動控制起落架緩沖器數學模型和模擬模型；通過數字模擬對這兩種控制方法進行了比較，認為半主動控制較被動控制有很大的優越性。Up to now, the dynamic simulation for aircraft landing and taxiing by the software adams based on the full aircraft model has not been found. in this paper, dynamic analysis for landing gear landing and taxiing is conducted for a large transportation aircraft with a post nose landing gear and two truck main landing gears. a dynamic analysis model of the landing gear and a full - scale aircraft model used in the simulation are developed by applying dynamics basic theory
論文以我國某大型運輸飛機起落架為研究對象，應用動力學基本原理，基於adams aircraft模塊建立了起落架著陸動態性能分析模型以及由機身、前起落架緩沖支柱、前起落架機輪、主起落架緩沖支柱和主起落架機輪五個子系統構成的全機模型，進行落震、全機著陸與滑跑動力學模擬。First, the paper designs the loading system on the basis of given loading data. then, it sets up the linear model of simulation and simulate
本文首先進行起落架加載系統的靜態參數設計並建立其線性化模擬模型，然後進行模擬。Finally, the author analyzed the results of the dynamic simulation and given a rough conclusion about the distribution of the ground loads of the aircraft researched among its different landing gears
對模擬結果進行對比分析，定性地給出該飛機在對稱著陸過程中飛機所受地面載荷在各個起落架緩沖支柱上的分佈關系。Now, it is worthwhile to conduct the research on the ground load of landing gear with multi - wheels and multi - struts according to the basic theories of the mechanics, the dynamics analysis model of the full - aircraft during its landing process is established in this paper
本文首先以某多輪多支柱飛機的起落架作為研究對象，應用動力學基本原理，建立了全機的著陸動力學模型。然後，通過利用大型動力學模擬軟體adams對該飛機進行了對稱著陸模擬，並對模擬結果進行了對比分析。How to precisely simulate the landing process of an aircraft and effectively absorb aircraft landing kinetic energy to attenuate the impact loads on aircraft is a problem facing the landing gear community
如何精確模擬飛機著陸過程起落架和機身的動態響應，並據此設計減小飛機著陸過程中的沖擊載荷的方案，一直是飛機起落架設計和分析中的重要課題。For the past decades, many efforts have been made to learn the behaviors of landing gear during touchdown. with these known behaviors of landing gear, a number of methods have been developed to attenuate the landing impact loads
作者實現了某型運輸機起落架和全機得數字化虛擬樣機，不但能夠真實模擬飛機著陸性能，而且從系統的高度為靜平衡、滑跑和地面操縱等性能模擬提供了良好的平臺。According to an undercarriage loading system of an airplane, a linear model of an electrohydralic servo system was established and simulated
本論文以某型號飛機主起落架加載系統為例，首先建立了電液伺服系統的線性化模型並進行了模擬。Then the horizontal load to aeroplane undercarriage tyre can be obtained more accurately by making use of the proposed model and results of drop - test simultaneously
根據起落架落震試驗結果和該數學模型，可以得到考慮動態效應的起落架機輪水準載荷。The mathematic model of predicting the horizontal load subjected to aeroplane undercarriage tyre based on the drop - tests was built by analyzing dynamic loads acting on drop - test platform which is supported by three - poles, and the coefficients in the mathematic model were determined by means of the least - square method according to the results of static tests
摘要通過分析3點支撐落震平臺的動態受力情況，確定了起落架機輪投放到落震平臺上后，落震平臺水準方向的各種載荷情況，從而利用測量落震平臺水準載荷的間接測量方法，建立了起落架機輪水準載荷測量方法的數學模型， ?採用在落震試驗臺水準方向上進行試驗標定的方法，確定了數學模型中的有關待定系數。We also owns large - scale professional workshop of pattern which cqn produce various types of hangers requested by you. now hundreds of hangers style are exported to japan, america and many european countries together with garments
主要生產商標服裝衣架，並設有大型專業模具製造廠，可按客人要求起模生產各式名樣的服裝衣架，現已有數百款衣架與服裝廠配套出口到日本美國以及歐洲各國。From the simulation, we can get some parameter curves of landing gear. by analyzing these curves and the methods with two - masses model, the linear state equation of landing gear during landing process was established
基於參數曲線分析和二質量模型建立了起落架著陸的線性狀態方程，應用現代控制理論對方程進行分析並結合matlab軟體對其進行著陸動態模擬。Simulation results shows that adaptive control algorithm can make the output of aircraft landing gear approach to the reference output rapidly and the control system possess of good performance of robustness. hence, the control method is effective
模擬結果表明:自適應控制演算法能夠使起落架的控制變量快速達到理想的參考模型輸出並且控制曲線平滑，同時控制系統具有很好的魯棒性能，增強了系統的抗干擾能力。The main research is as follows : analyze and research the boundary constraint and the structure characteristic and segment the frame making use of the shell element, the pipe element etc. on the base of it the practical finite element model has been established ; analyze the mode of the frame by dint of the finite element model. and get the inherent frequency and the vibration mode of the frame. tentatively estimate the dynamic characteristic of the frame and analyze the inherent frequency that may be lead to the resonance
論文的主要研究工作如下：分析研究車架的邊界條件和結構特性，並用殼、管等單元對該車架進行離散，建立一種切實有效的車架有限元模型；對該車架的有限元模型進行模態分析，求得其的固有頻率和振型，並對車架的動態特性做出初步評估，分析可能引起車架振動的固有頻率；在模態分析基礎上，研究發動機輸出的簡諧力引起的車架位移響應（即諧響應分析） ，以考察摩托車車架各部位的振動情況並與模態分析對比，分析是否與該車架的固有頻率相耦合而導致共振；在深入研究車架的模態分析及諧響應分析、清晰地認識了摩托車車架動態特性的基礎上，分析並提出了採用橡膠減震器對車架進行隔振的減震方法。Abstract : according to the probability model of aerointerceptor ' s interception effect under optimum target distribution form ( tdf ), the optimum tdf in which aerointerceptors intercept groups of attack - planes are deduced, the relation among dispatching fighter number, airport ' s tactical and technological parameters, aerointerceptor ' s tactical and technological parameters, and attack - situation of attack - planes is researched, the quantitacation relationship are then determined which should satisfy when airport ' s aerointerceptors conduct optimum target distribution on groups of attack - planes. starting from operational practice, the model can provide certain theoretical basis for the military decisions
文摘:根據截擊機在優化的目標分配形式下攔截效果的概率模型，導出了截擊機在攔截多攻擊機機群時的最優目標分配形式;研究了機場飛機起飛架數與機場戰術、技術參數、機場飛機的戰術、技術參數以及與攻擊機的進攻態勢之間的關系;確定了多機場飛機對多攻擊機機群進行最優目標分配時所應滿足的量化關系，給出的模型可對作戰決策過程提供理論依據。Secondly, a full - aircraft assembly model in software adam is defined, which includes an airframe subsystem, a strut subsystem of the nose landing gear, a wheel subsystem of the nose landing gear, a strut subsystem of the forward main landing gear, a wheel subsystem of the forward main landing gear, a strut subsystem of the after main landing gear and a wheel subsystem of the after main landing gear
在adams軟體中建立了一個由機身、前起落架緩沖支柱、前起落架機輪、前主起落架緩沖支柱、前主起落架機輪、後主起落架緩沖支柱和後主起落架機輪七個子系統構成的全機模型，並對該模型進行了對稱著陸模擬分析。Simulation shows : the linear model can explain the characteristic of the passive control landing gear
結果表明線性化后的模型能夠反應被動控制起落架的著陸特性。At last, the researchers discussed and analyzed the results of the simulation contrastively. firstly, according to the conditions of the aircraft being researched, differential coefficient equations of the aircraft during its symmetric landing are established systemically in this paper
文章的主要內容包括:以某多輪多支柱飛機的起落架為例，依據該起落對稱著陸的實際情況，系統地建立了該飛機的全機著陸動力模型以及飛機主起落架數學模型。分享友人