簡周期運動 的英文怎麼說

中文拼音 [jiǎnzhōuyùndòng]
簡周期運動 英文
simple periodic motion
  • : Ⅰ形容詞(簡單) simple; simplified; brief Ⅱ動詞1 (使簡單; 簡化) simplify 2 [書面語] (選擇人才...
  • : Ⅰ名詞1 (圈子; 周圍) circumference; periphery; circuit 2 (星期) week 3 [電學] (周波的簡稱) c...
  • : 期名詞[書面語]1. (一周年) a full year; anniversary 2. (一整月) a full month
  • : Ⅰ動詞1 (物體位置不斷變化) move; revolve 2 (搬運; 運輸) carry; transport 3 (運用) use; wield...
  • 運動 : 運動[舊時用語] arrange things or get things done through pull
  1. Compared with the behavior of macromolecules in real solution system, the adsorption information in the monte carlo simulation system, such as adsorption isotherm, surface coverage, and bound fraction, was studied for discussing its relation to simulation parameters. five - selection simple cubic lattice, self - avoiding walk, and nearest interaction model were used to construct the homopolymer adsorption model on the solid - liquid interface. periodic boundary conditions were used to reduce the fixed error from limited cubic lattice in size

    模擬中採用五選擇單立方格子上的自迴避行走和最近鄰相互作用模型;使用性邊界條件以減小有限大格子空間帶來的系統誤差;用鏈節間相互作用能、界面吸附能、體相濃度和鏈長約束體系中的高分子的吸附行為;用末端轉、 l -翻轉、曲柄、蛇形和r - r切除-生長法對模擬體系進行擾;用系統達到吸附平衡后的樣本來研究模擬體系中的高分子鏈在固液界面上的吸附。
  2. This paper is referred to detailed study on business cycle fluctuation of real estate industry based on analysis method of modern economics and the current economic situation in our country, which is composed of the following three parts : part one : through brief summary on the main theories of business cycle fluctuation and discussion on the main viewpoints on business cycle fluctuation of real estate industry, it tells us, based on the true cases, the generation mechanism of business fluctuation of t real estate industry just for further analysis and study of business cycle fluctuation of the housing and land in our country as a theory preparation

    本文用現代經濟學的分析方法,同時結合我國的實際,對房地產經濟問題進行了較為深入的探討。本文由以下三個部分組成: 1通過要歸納、總結主要經濟理論及房地產經濟理論主要觀點,從實證角度分析各國或地區房地產經濟,提出房地產經濟的生成機理,為分析、研究我國房地產經濟提供理論準備。
  3. Based on an engineering background, through numerical simulation of the flow field in the hp turbine of the energy efficient engine ( e3 ), the article research the unsteady flow in a transonic turbine stage, the unsteady phenomena in the stage include the shockwave, wake, shedding vortex, endwall vortex, passage vortex and leakage vortex, etc. there are two shockwaves generated on the vane the tailing edge, one on suction side is named moving shockwave, and name another on pressure side steady shockwave

    本文首先對于研究的意義和國內外研究的現狀做了要的介紹,再從某工程背景出發,通過對e3發機高壓渦輪內流場的數值模擬,研究了干涉的性的問題,以及渦輪級內常見的非定常現象:激波、尾跡、脫落渦、根腳渦、通道渦、漏流渦。導向器尾緣會出現兩道激波,在吸力面的激波可稱為「」激波,壓力面的激波可稱為「定常」激波。
  4. It is the main purpose of this paper to calculate the energy splitting of ground state and excited states induced by thermally assisted quantum tunneling. first, a brief introduction is given for the theoretical and experimental studies on the magnetic macroscopic quantum effects. then, spin tunneling in a uniaxial ferromagnetic particle in transverse magnetic field is converted to a pseudoparticle moving in effective double - well potential with the help of the effective potential description of quantum spin systems developed by ulyanov and zaslavskii. finally using the periodic instanton method we evaluate the transition amplitude, energy shift and prefactor of wkb exponential and the energy splitting of ground state and the tunneling rate for excited states induced by thermally assisted quantum tunneling are obtained

    文章首先對磁性宏觀量子效應的理論和實驗方面作了單介紹,然後藉助于ulyanov和zaslavskii發展的一種等效勢描述方法,把外磁場沿難磁化軸方向時的自旋隧穿約化成在等效雙勢阱中的粒子,利用瞬子方法給出基態能級劈裂,最後利用瞬子方法分別計算了隧穿幅、能級移以及wkb前因子,從而給出由於熱助量子隧穿引起的激發態的隧穿率。
  5. In kinesin ' s actual movement, it continuously changes its conformation to catalyze atp ' s hydrolysis. the role of microtubule is not a simple periodic potential

    在實際中,馬達不斷進行著自身構象變化並催化atp水解,微管產生的勢場也不僅僅是一個單的勢函數。
  6. My thesis has three parts : in part 1, i briefly introduce the background of the selected title, the goal of research and research meaning of this text. i mainly study the concept, the theory putted forward by the economists about the reason causing economic fluctuation and the macroeconomic control to economic fluctuations. in part 2, i regard chinese economic cycle as the observing object, using the traditional method and economic mathematical model to measure and analyze chinese economic cycle systematically since the reform, then i study the nature, characteristic and main influencing factor of chinese economic fluctuations since the reform of 20 years

    本文的研究工作主要由三部分內容組成:第一部分首先要介紹了本文的選題背景、研究的目標和研究意義,然後重點考察了經濟的概念、各國經濟學家解釋經濟發生原因的一般理論以及經濟的宏觀調控等內容;第二部分主要以改革開放以來中國經濟為研究對象,用傳統方法和經濟數學模型對這一時中國經濟的進行了詳細、系統地測定,並考察了改革以來中國經濟的性質、特徵以及主要影響因素;第三部分重點分析了中國經濟波的真正原因及其傳遞機制,並在前文研究的基礎上,依據「反」理論探討了對中國經濟進行調節的基本思路和對策。
  7. On the basis of brief reviewing the progress of the researches about the relative fields at home and abroad, the system of economic sustainable development of huangling county was qualitatively analyzed in the thesis according to the life - cycle theory of products and industries, the theory of export guiding and the theory of economic sustainable development. and the method of systematic dynamics was applied in programming and mockingly regulating the ec onomic sustainable development of huangling, the best model for the economic sustainable development of county regions was discussed. and pointed out that the key to realizing the economic sustainable development of county regions was to suitably adjust the industrial structure, to transform the single structure into the multiple - levels and diversified structure and then to realize the recreation and substitution of advantages by developing coal industry and some non - coal industries such as agriculture and tourism that possess the regional advantages

    本論文在要回顧國內外相關領域研究進展的基礎上,依據產業和產品的生命理論、出口導向理論和經濟可持續發展理論,對黃陵縣域經濟可持續發展系統進行定性分析,並用系統力學方法對其進行規劃與模擬調控,探討了縣域經濟可持續發展的最優模式,指出實現縣域經濟可持續發展的關鍵是適時進行產業結構調整,由單一的結構向多元化、多層次轉變,通過發展煤炭產業和具有區域優勢的農業、旅遊等非煤產業實現優勢再造和優勢替代。
  8. A flight trajectory math model of an assumed cruise aircraft is built according to a simple blue print of the flight control system, with the foundation of a particular analysis of its kinematics and dynamics. a linear light - disturbed minor - cycled movement model and the transform function models are got through some simplifications

    本文以某個虛構的巡航式飛行器的飛行控制系統為研究對象,首先討論了一個單的總體方案,然後根據此方案,在詳細分析此飛行器學與力學的基礎上,建立了飛行器飛行模擬數學模型,並在允許的條件下進行化得出了此飛行器線性化小擾模型與傳遞函數模擬模型。
  9. Second, a jeffcott rotor model supported by two seals bearings in its two ends is established to simulate the shafting of simple turbines ( only short - and - straight - blades are included in the shafting ). and periodical response of the system is obtained by using the newmark method. then, the dynamic characteristics of rotor system at the certain rotate speed and the certain physic

    其次,建立了一個用來模擬單汽輪機軸系(只含有短直葉片)的兩端用滑軸承支撐的jeffcott轉子模型,並用newmark方法求得了系統的響應,根據系統的響應、 poincare映射圖、頻譜圖、分岔圖等,分析了系統在特定轉速及特定的轉子系統參數下的特徵。
  10. A new aerodynamic design system developed by authors for draft fan with enhanced efficiency, suppressed noise, enlarged flux and high load. the new design system features : a twist regulation for vortex control is employed in designing to lessen the secondary flow loss in the blade tip and hub ; the feasibility and high efficiency of this procedure has been verified by the tests of the prototype fan ; a new computer - aided 3d blading is used to optimize the blade ; numerical inverse checking is adopted to enhance accuracy in designing and cut down the period of the designing and production. this design system can make the optimized blade with " forward inclination ", " inclining sweep ", " bending sweep ", to minimize the various secondary flow losses, to expand the steady working range of the fan, and to suppress the aerodynamic noise source

    本文通過對一種新型高性能礦用局部通風機的設計、製造及試驗全過程的綜述,展現了新的先進設計體系在民用通風機上的成功用,其研製特點是: ( 1 )在葉片氣設計中為了降低葉根及葉尖區二次流損失,採用可控渦扭向規律設計,樣機實測的高性能驗證了這種方法的可行性和高效性; ( 2 )在設計方法中採用較精確的數值反驗算,獲取最優設計方案,大大提高設計的準確性和成功率,並縮短了設計試制; ( 3 )在設計過程中發展了計算機輔助三維葉片造型新方法,可以根據設計需要便快捷地對葉片進行「前傾」 、 「傾掠」或「彎掠」造型,這些造型對減小各種二次流損失、擴大穩定工況范圍和控制葉輪機氣噪聲源起到了非常好的作用。
  11. Abstract : a new aerodynamic design system developed by authors for draft fan with enhanced efficiency, suppressed noise, enlarged flux and high load. the new design system features : a twist regulation for vortex control is employed in designing to lessen the secondary flow loss in the blade tip and hub ; the feasibility and high efficiency of this procedure has been verified by the tests of the prototype fan ; a new computer - aided 3d blading is used to optimize the blade ; numerical inverse checking is adopted to enhance accuracy in designing and cut down the period of the designing and production. this design system can make the optimized blade with " forward inclination ", " inclining sweep ", " bending sweep ", to minimize the various secondary flow losses, to expand the steady working range of the fan, and to suppress the aerodynamic noise source

    文摘:本文通過對一種新型高性能礦用局部通風機的設計、製造及試驗全過程的綜述,展現了新的先進設計體系在民用通風機上的成功用,其研製特點是: ( 1 )在葉片氣設計中為了降低葉根及葉尖區二次流損失,採用可控渦扭向規律設計,樣機實測的高性能驗證了這種方法的可行性和高效性; ( 2 )在設計方法中採用較精確的數值反驗算,獲取最優設計方案,大大提高設計的準確性和成功率,並縮短了設計試制; ( 3 )在設計過程中發展了計算機輔助三維葉片造型新方法,可以根據設計需要便快捷地對葉片進行「前傾」 、 「傾掠」或「彎掠」造型,這些造型對減小各種二次流損失、擴大穩定工況范圍和控制葉輪機氣噪聲源起到了非常好的作用。
  12. In the latter, the non - linear dynamic stabilities of the single rotor system with a crack are researched. the non - linear differential equ ations have periodic coefficients. and using the stability theory of the periodic motion, it is discussed that the thickness of the disk, the position of the disk and the position of the crack have effects on the dynamic stabilities

    首先單討論了含裂紋的單盤轉子系統的線性力穩定性,並與相關的文獻作出比較,驗證了等效線彈簧模型的正確性和精確性;然後,討論了含裂紋的單盤轉子系統的非線性力穩定性,得到了一組具有系數的非線性微分方程組,且利用的穩定性理論進行了求解,深入討論了盤的厚度,盤所處的位置和裂紋所處的位置對轉子系統力穩定性的影響。
  13. Based on calculation method on unfold size and piece form, theory analysis and research are given on ellipse, circle tube, box as equal - high, irregular, unequal - high, irregular piece, process and condition on possibility of drawing are introduced, through calculation coefficient, number of drawing, drawing testing dies are made, results are given, it is similar to calculation method, in the same time, complex drawing presswork is planed, to avoid wrinkle, critical in drawing process. in this paper, die designing is introduced based on complex drawing unfold size calculation, press center is automatic calculated, apartments of press tools are calculated too with material mechanic production process and press form are better, period of die designing is to reduced, and cost of product is lower

    對基於復雜拉深件展開尺寸計算的模具設計也作了詳細的論述,指出了現有復雜拉深件模具設計製造程序的不合理性,本文在復雜拉深件展開尺寸基礎上自生成沖裁中心、沖裁長,用材料力學中桿件強度及抗失穩條件,實現對沖壓模具參數的自計算,化了沖壓模具彈性元件、打料裝置的設計過程,給出了沖壓模具結構設計流程,使得模具材料核算,製造過程,沖壓方式更趨合理,縮短了模具設計製造,降低了產品生產成本。
  14. In large rotating machinery using filmatic bearing ( turbogenerator, air compressor, etc. ) there is a potential trouble from impefect installation or running conditions, a metals " contact between rotors and shells. the trouble is usully called rubbing. the advantage of ae technologe in the rubbing diagnosis and early detection is showed. instead of classical ae characteristic parameters ( counts, amplitude, energy, duration and the other ones ) a new feature extraction by frequency analysis of ae envelop signals is discussed. both research of ae process and field experements indicate that periodic components in the envelop spectrum related to rotational speed increase evidently at the beginning of rubbing production, hence are highly sensitive to the rubbing fault diagnosis. according to the new design an acoustic emission equipment for the rubbing diagnosis named buaa ae testing system is developed and described

    汽輪發電機、空氣壓縮機等採用油膜支撐的大型轉機械,由於安裝或行中的原因,在轉子旋轉過程中,可能和器壁發生輕微的摩擦和碰擊,稱碰摩.聲發射技術在碰摩發生特別是故障早診斷上有優越性.本系統的特點是沒有沿用傳統的計數、幅度、能量和持續時間等聲發射特性參數,而是在聲發射包絡信號的頻率分析中進行特徵提取.聲發射發生的過程分析和現場試驗都表明這種方法對碰摩檢測很敏感,在碰摩發生的起始階段,包絡譜中與轉速同步的性分量顯著增加.根據這種新的設計思想自行研製了buaa碰摩聲發射檢測儀並對此作了介紹
  15. Rational structure and complete in matching accessories, short instrallation cycle, simple operation, high level automation, safe and reliable, wide range of application

    設備結構合理,配套齊全、安裝短、行操作單,自化程度高,安全可靠,適用范圍廣泛。
  16. Detailed numerical studies are presented for the transitional dynamics of the steady - state motions of those systems with the variation of the excitation and the system parameters, with the illustrations given for rich nonlinear phenomena, such as the bifurcations of periodic vibro - impact motions and the chaotic vibro - impact motions. in chapter 5, the existence of the periodic vibro - impacts, as well as the corresponding stability is analyzed for an oblique - impact vibrating system composed of a spring - pendulum and an oscillator. when the system damping and the tangential friction

    結果表明,在無阻尼、無摩擦的化情況下,斜碰撞振具有嚴格的存在條件,並隨激勵參數的變化出現復雜的分叉和穩定性的反復切換;阻尼可在較大參數范圍內對非穩定斜碰撞振系統力學研究( 5 ) ( 6 )鎮定;相對而言,切向摩擦對系統穩態特徵的影響不大。
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