static reduction 中文意思是什麼

static reduction 解釋
靜態還原
  • static : adj 1 靜止的,靜態的,靜力的。2 【物理學】天電的,靜電的。3 【無線電】靜態特性。4 固定的,不活潑...
  • reduction : n 1 縮小,減少;降級,降位;(刑罰等的)輕減;減速;減價,折扣。2 (城市、國家等的)陷落,投降,...
  1. Based on extensive investigation of construction technique history of chinese ancient buildings, the structure method, structure developing history and seismic behavior of chinese ancient timber structure buildings are analyzed in several respects of the structural system and form. through a series of experiments on constituent parts of chinese ancient timber building structure, including the tests on the corbels and brackets called dougong subjected to low cyclic reversed loadings, the tests on the wooden frame using the tenon - mortise joints as connections of column and beam subjected to low cyclic reversed loadings, the tests on vibration isolation effect of friction and slippage between column footing and their socle base, and a series of shaking table tests on a chinese ancient timber structure palace building mode under artificial earthquake at serving conditions, destroyed conditions and reinforced conditions, many valuable results of structures such as moment - curvature hysteretic loops of dougong structure and tenon - mortise joints under low cyckc reversed loadings, the static function, the seismic performance, energy dissipation, vibration reduction, energy - loss mechanism, nechanicalmode and failure mode were studied. aplenty of valuable parameters of the structure system were obtained, such as the natural period of structure, vibration modes, damping ratio, factor of vibration isolation, oscillate amplitude of ineitial accebration, velocity and displacement, magnitude of slippage, and the mechanism of structure failure and collapse etc. based on these research, the complete analysis of ancient timber structure under earthquake were carried out in which including mechanism analysis method, calculating mode, strength analysis of members and joints, strengthening methods for serving damaged ancient timber structure buildings were also taken into account

    依照宋代《營造法式》建造了抬梁式殿堂木結構構件及結構模型,對中國古代木結構中的典型構造如:柱腳在礎石頂面平擱簡支、柱架榫卯連接、柱高不越間之廣、側腳、生起、斗拱等的構造機理及結構功能進行了量化分析和實驗研究: (一)通過木柱石礎靜摩擦試驗,測定了柱腳與石礎古鏡面間的摩擦系數及摩擦力隨上部結構荷載變化的規律; (二)通過單柱承載力試驗,測定了古建築中木柱的受力變形特徵、破壞模式、及模型材料的變形模量、極限承載力、極限變形等參量; (三)通過柱架低周反復荷載試驗,測定了柱架的抗側移剛度、柱架恢復力特性及滯回曲線、榫卯張角剛度及其變化規律、柱架及榫卯的極限承載力和極限變形、及榫卯減振參數; (四)通過斗?低周反復荷載試驗和受壓試驗,測定了古建築木構件與木構件間摩擦系數,斗?抗側移剛度,斗?恢復力特性及滯回曲線,斗?抗壓極限承載力及受力變形規律; (五)通過抬梁式殿堂間架模型振動臺試驗,測定了殿堂木構架結構自振周期,地震反應振形、阻尼特性及阻尼比;按結構分層特點對柱腳、柱頭和斗?層上的屋蓋的地震反應採用多點同步測量,對柱根滑移、榫卯變形、斗?的變形、復位、耗能減振參數等進行了定量分析。
  2. Abstract : molecular deposition ( md ) film, a nano film, is assembled by the interaction of static charge between cationic and anionic compounds. the micro - friction properties of an md film on silica has been studied with atomic force microscope ( afm ). it has been found that the md film has lower coefficient of friction as compared with the original surface of silica. moreover, based on the analyses of the surface force versus distance curves, photographic image, friction force image, and modulated force image, it is concluded that the friction reduction effect of md film on silica is attributed to the surface adhesion reduction and surface micro - modification

    文摘:利用原子力顯微鏡對石英巖表面單層分子沉積膜的微觀摩擦特性進行了研究,發現該分子沉積膜具有一定的減摩性.通過對其表面力-位移曲線、表面形貌像、調制力像和摩擦力像的進一步分析表明,石英巖表面分子沉積膜具有減摩作用的原因在於它能夠降低表面的粘著力並對表面具有微觀修飾作用
  3. ( 2 ) respectively by elastic theory analyses and methods of structural mechanics, transverse static analytical equations for flexible pipeline rigid pipeline are established whose outcomes are applied in numerical example to compare those with that by finite element method. ( 3 ) considering interaction of filled soil, pipeline and foundation, with an eye to non - linear soil model, in view of the initial geo - stress field and the effects of interface between soil and pipeline, and by finite element method the calculational model and method are built for transverse stress in pipeline. then, by the great finite element analytical software ansys, those outcomes are applied in calculation example of positive buried pipe to educe the distribution of circumjacent soil pressure and stresses on cross section and to compare it with that calculated by conventional ways before those outcomes are applied in engineering case of positive buried pipe with flexible filled materials to confirm distribution of soil pressures after the measure for reduction and to compare it with measurements. as a result, the model set up in this paper is proved to be applicable after all above - mentioned analyses

    本文基於彈性理論和有限元原理與方法,分析了上埋式地下管道橫向力學計算方法和性狀並探討了上埋式地下管道的減荷等問題: ( 1 )在分析現有幾種典型的管道垂直土壓力計算方法的基礎上,探討了影響垂直土壓力的主要因素以及改進的方法; ( 2 )分別通過彈性理論分析法和結構力學的方法,建立了地下管道柔性圓環和剛性管涵的橫向靜力計算方程,並應用在算例中,把所得結果和有限元方法所得結果進行對比分析; ( 3 )考慮填土、管道和基礎的共同作用、土體的非線性特性、初始應力場以及土體和管道的接觸面因素的影響,利用有限元的思路,建立了地下管道橫向力學有限元計算模型和方法,並且採用大型有限元分析軟體ansys ,針對上埋式管道工程算例,得出了管周土壓力以及管道橫截面應力的分佈狀況和規律,並和理論值進行對比;針對施加柔性填料的上埋式管道工程實例,得出了減荷后的土壓力分佈,並和實測值進行了對比。
  4. Firstly, sufficient conditions of lagrange stability for nominal unperturbed pendulum - like systems are derived based on the nonlocal reduction method. then the static state feedback controller design methods are presented for uncetain pendulum - like systems with time - varying norm - bounded parameter uncertainty to obtain robust lagrange stability. it is shown that the above problem can be reduced to the existence of the solutions to a set of lmis

    在具體的推導過程中,首先基於非局部降階法,推導了高階標稱類擺系統lagrange穩定的充分性條件,然後基於此條件,針對具有范數有界參數不確定性的受控高階類擺系統,給出了使其魯棒lagrange穩定的狀態反饋控制器設計的充分性條件。
  5. On account of most of the existing research was limited in single pile and single pile with a cap. this paper has done six single pile, one single pile, one three piles composite foundation and two - origin foundation static load experiments and obtained the principal value. the author found the formula in the code is vaguely in deals with the origin foundation bearing capacity and its reduction coefficient. two pieces of advice were put forward to improve the formula and achieved satisfied results in fact engineer construction

    水泥土樁復合地基研究的困難,在於其非均一性的特點,鑒於前人的研究工作多局限在單樁及單樁復合地基,本文進行了六組單樁,單樁與多樁復合地基、天然地基各兩組的靜載荷對比試驗,得到了三者承載力的基本值,指出了有關規范復合地基承載力公式中的天然地基,取值不明確,不利於實際應用。
  6. Iron ores. low temperature disintegration test. method using cold tumbling after static reduction

    鐵礦石.低溫碎解試驗.利用靜態收縮后的冷滾方法
  7. Chapter 2 deals with the fundamental theory and methods of bifurcation. the conditions giving rise to the static bifurcation are derived at first, then, the improved ls reduction method is studied and the centre manifold method is simplified

    第二章研究分岔的基本理論和方法,推導了一般一維非線性微分動力系統發生鞍?結分岔、叉式分岔和跨臨界分岔等基本靜態分岔的條件,改進和簡化了高維非線性微分動力系統的降維方法。
  8. This mode of damage is essentially analyzed with a simple static approach by comparing post - earthquake residual strength of sand with initial stress due to gravity. the other involves limited, but often large, amount of deformation due to significant reduction in soil stiffness but without involving mechanism of failure in soil

    一種為飽和砂土的強度的降低而導致的完全流動破壞;另一種為不涉及土體的破壞機理,但由於土體勁度的降低而產生有限的大變形,稱為循環活動性。
  9. Finally, to meet the fact, the paper also analyses a new drive scheme theoretically, in which the switched reluctance motor with y winding connection is excited by three wires. this paper woks over the calculation of switched reluctance motor magnetization curve and its analysis of static performance. the torque ripple reduction is the emphases

    本文對開關磁阻電機磁化曲線的計算、穩態性能分析、轉矩脈動的減小,提出了相應的解決方法,對于開關磁阻電機的性能分析、實時控制、新型驅動和開發研製都有一定的理論和應用價值。
  10. String frequent static, sub string reduction and several filtering method are used to analyze one set chinese new word mining system and identify new word by using character, word and n - gram dictionary based on statistic large - scale corpus

    摘要根據新詞語的不同特徵,提出了一整套自動檢測新詞語的方法,通過大規模地統計分析,分別建立字,詞, n元組的詞典,從中自動檢測出新詞語來,然後再根據構詞規則時自動檢測的結果進行進一步的過濾,最終抽取出語料中的新詞語。
  11. The result of static calculation showed that the tooth profile long modification of spur bevel gear possesses better effects of vibration reduction

    靜態計算結果表明,直齒錐齒輪齒廓長修形具有較好的減振效果。
  12. Iron ores - low - temperature disintegration test - method using cold tumbling after static reduction

    靜態還原后使用冷轉鼓的方法
  13. At this part, it firstly comes up with a quasi - static frequency selective fading channel model. based on this channel model, considering about the characteristics of the model and the lattice reduction complexity, we proposed a new detection strategy, which is the lll detection algorithm combined with decision - feedback technique

    首先提出了準靜態頻率選擇性多徑通道模型,然後基於該模型提出了一種新的用於準靜態頻率選擇性通道的檢測方案,即與判決反饋相結合的格約簡輔助檢測方案。
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