降階模型 的英文怎麼說

中文拼音 [jiàngjiēmóxíng]
降階模型 英文
reduced model
  • 降 : 降動詞1. （投降） surrender; capitulate 2. （降伏） subdue; vanquish; tame
  • 階 : 名詞1. （臺階） steps; stairs 2. （等級） rank 3. [醫學] （耳蝸的三個螺旋管的任一個） scala 4. [數學] order 5. [地質學] stage
  • 模 : 模名詞1. （模子） mould; pattern; matrix 2. （姓氏） a surname
  • 模型 : 1 （仿製實物） model; pattern 2 （制砂型的工具） mould; pattern3 （模子） model set; mould patter...
  1. Roll over protective structure ( rops ) is a device which installs on out of construction vehicle. the main functions are : when the vehicle rolling over. rops can prevent the vehicle from rolling over further, and reduce the possibility of rolling vehicle injures operator ; when the vehicle traveling on freezing soil. concrete and rock, it has large resist continuous impact ability ; when the vehicle overturning rops can support the whole vehicle. arrangement of falling object protective structure ( fops ) can block objects ( such as trees, rocks ) so that supply protection for operator. this problem is that research rolling over and falling objects protective structure of bulldozer by learning research condition of rops / fops and relative lay down international standard. on the base of theory analysis. detrudes counting formula of rops / fops deformation through founding mechanics analysis model of rops / fops at the stage of elasticity and plastoelastic. and finds a set of feasible nonlinear finite element analysis counting. lt calculates rops / fops plastoelastic deforma variable of 320hp bulldozer, bulldozer has been carried out by optimizing design method

    其主要功能是：當車輛滾翻時， rops能刺入未凍土壤而阻止車輛的進一步滾翻，降低滾翻的車輛對系著安全帶司機軋傷的可能性；保證rops在碰撞和沖擊變形不大的地面（如凍土、混疑土上、巖石）時，能具有相當大的抗連續沖擊能力；當車輛已經處于顛覆狀態時，已經變形的rops應能支撐住整車。落物保護裝置（簡稱fops ） ，其構件的布置方式要能遮蔽墜落的物體（如，樹木、巖石等） ，以便對司機提供適當的保護。本課題主要通過了解國內外有關對rops fops的研究情況和有關國際標準的制定，對大型推土機傾翻和落物保護裝置進行研究，在理論分析的基礎上，通過建立rops fops的力學分析模型，推導彈性、彈塑性階段rops fops變形的計算公式，建立一套可行的rops fops的非線性有限元分析計算方法。
  2. The problems of reducing dimension, of multipurpose optimal decision, and of integration of qualitative analysis and quantitative analysis for the large system decomposition - coordination step model are primarily calculated

    主要考慮了大系統分解?協調遞階模型的降維、多目標優化決策及其定性和定量相結合的一系列問題。
  3. Taking this large irrigation district as a reference, this paper studies the optimal scheduling of water resources in this district, mainly considering such problems as degrading dimensions of the decomposition - coordination for big system and optimal decision - making of multiple purpose

    本文以大型灌區為對象，研究了灌區水資源的優化調配問題。主要考慮了大系統分解?協調遞階模型的降維、多目標優化決策等問題。
  4. Shrinkage deformation of beam in temperature fall stage is simulated through jack stretching test model, and expansion deformation of beam in temperature rise stage is simulated through jack pushing out test model

    通過千斤頂對試驗模型的張拉來模擬溫降階段梁體的收縮變形;通過對試驗模型的頂推來模擬溫升階段梁體的膨脹變形。
  5. 5. a multivariable process identification based on asymptotic black - box theory is studied. firstly, a high - order mimo arx model and its frequency error bound is estimated from identification data and low - order siso models is obtained from high - order mimo arx model

    作者對一種基於漸近黑箱理論的多變量過程辨識方法進行了研究：首先用高階arx模型估計模型參數，並給出高階模型的頻域均方誤差；然後，對高階arx模型進行降階處理。
  6. Based on the multi - scale representation theory, we present a reduced order model for the solving of the inverse problem. also the relative error covariance matrix is used to analyze the performance of models with different orders ; 4

    基於小波多尺度表示理論給出逆問題求解的多尺度降階模型，同時用相對誤差協方差矩陣對階數不同的降階模型的估計精度進行分析； 4
  7. Research on modification of model reduction based on genetic algorithms

    基於遺傳演算法的降階模型修正方法研究
  8. In this paper, that using experimental mode data to modify calculating model is taken as the research object

    摘要以實驗模態數據修正降階模型為研究對象，由於所測量的特徵對階數通常小於模型階數，造成了特徵方程為超越方程。
  9. Investigated the basic theory of the coupled cfd / csd simulation of nonlinear unsteady aerodynamics and prepared basic data for reduced order model. 2

    探討了cfd csd耦合技術預測非線性非定常氣動力的基本原理，為非定常氣動力降階模型準備數據。
  10. Integrated ase design and coupled cfd / csd simulation technology and firstly applied the reduced order model based on volterra series to the design of ase system 2

    將ase系統設計同cfd csd耦合模擬技術相結合，首次將基於volterra級數的非定常氣動力降階模型用於氣動伺服彈性系統的設計。
  11. The first part of the thesis introduces the activated sludge model no. l ( asm1 ), and illustrates the representative method, the characters of the water quality and the different components in detail

    論文第一部分介紹了活性污泥1號模型asm1 ，對模型表述形式、污水的水質特性及組分構成作了詳細的說明。論文第二部分主要介紹活性污泥的降階模型。
  12. Investigated the reduced order model for nonlinear unsteady aerodynamics based on volterra series, especially the identification method of the volterra kernels and studied the application domain and accuracy of the model

    研究了volterra級數在非定常氣動力降階模型中的應用，特別是volterra核的計算，並對volterra級數模型的適用范圍和精度進行了評價。
  13. In order to make the design process for power control system of experimental nuclear reactor optimal, objective and analytical, an analytical design process which contains the model linearization, model reduction, theoretical design of pid controllers is discussed

    摘要通過對實驗反應堆系統模型進行線性化和模型降階、再對降階模型進行pid控制器的理論設計的方法，可使反應堆功率調節系統的設計最優化、客觀化和解析化。
  14. In flight test, using the method of system identification, the model of the dropped order is taken, then the performance of control syetem of the drone is evaluated. in order to analysize the precision guidance of the flight test, two method is usedizero time sample test and small sample test

    在飛行試驗中，要對無人機的飛行控制系統的性能進行評估，運用系統辨識的方法，對試驗數據進行辨識，獲得其降階模型，從而對其性能進行評估。
  15. Firstly, a reduced order model of this flexible structure is obtained by frequency domain identification, then unstructured uncertainties constituted by neglected modes are taken care of in the time of design process by choosing appropriate weighting functions, arid finally a robust feedback controller is designed based on the reduced order model and the approximate knowledge of unmodeled uncertainties

    首先通過頻域辨識得到柔性結構的降階模型，而剩餘高階模態構成的非結構不確定性，通過對權函數的選擇在設計階段就加以考慮，然後基於降階模型和未建模不確定的近似特性設計了魯棒反饋控制器。
  16. 2 ) by analyzing the information and conditional information description mechanism of system states, the problem of stochastic model reduction is investigated based on state aggregation. the information loss and conditional information loss between the full - and reduced - order models are measured by entropy, while the independence and conditional independence within me components of aggregated state are measured by kullback - leibler information distance. several model reduction methods for stable and unstable linear systems are derived by employing two criteria to get aggregation matrices : the minimal information loss and the maximal independence

    2 ）分析了隨機系統狀態空間模型中的信息和條件信息描述機制，以shannon熵為手段描述線性系統模型降階過程中的信息和條件信息損失，以kullback - leibler信息作為衡量降階模型狀態向量各分量之間統計獨立性的測度，針對穩定和不穩定系統研究基於狀態集聚的模型降階問題：分別運用最小信息損失準則和最大獨立性原則，得出幾種狀態集聚的信息論方法，並討論降階模型的性質、階次的確定、系統噪聲分佈特性等問題。
  17. Then the high order model was reduced by the modal aggregation method

    採用模態集結法對其高階模型進行降階。
  18. In order to simulating rapidly and analyzing the dynamic behavior of the whole mems but not reducing accuracy significantly, the terminal behavior of multi - terminal components was modeled as reduced - order model ( or called macromodel ). upon the finite element model theory micro - mechanical devices or components were modeled in the spatial, which afforded theoretic foundation and technical support to mems system - level design

    為了便於在不顯著影響精度而能快速地模擬與分析mems整個系統動態行為，通過器件或組件的降階模型（或稱為宏模型）方法描述了多埠組件的埠行為，並採用有限元模型理論在三維空間內建立了微機械器件或組件宏模型，為系統級設計所需要的組件庫的建立提供了理論基礎和技術支持。
  19. The selective modal analysis method ( sma ) based on the tradition equivalence second - order model achieves the reduced - order calculation for the electromechanical modes, but its calculation precision is n ' t higher and sometimes it may lose eigenvalues

    基於傳統等效二階模型的選擇模式分析法，雖然實現了多機系統機電模式的降階計算，但存在著計算精度不高和特徵根「丟失」現象。
  20. The order - reduced results are verified by comparing the zeros, poles and outputs curves before and after the order reduction and applying the linear quadratic optimal control law for low - order model to the high - order model

    通過零極點比較、輸出曲線比較和將針對低階模型設計的線性二次型最優控制律加入原高階模型等方法對降階結果進行了驗證。
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