proposed bridge 中文意思是什麼
proposed bridge
解釋
擬用中線-
Abstract : based on the principle of mininmum potential and using rayleigh - ritz method, the geometric non - linear analysis of higher bridge piers was solved in this paper. the new concept of equivalent horizontal force proposed by the author may be casily to calculate the second effect, which was produced due to the vertical forces and resisted by the piers and rubber pad bearings incorporately. the simple formula in this paper are applicable to calculate by hand, understood clearly without computation of successive iteration, higher precision and graspable easily for the disigmer therefore it has the practical significance
文摘:根據最小勢能原理，用瑞雷-里茲法解決了高橋墩的幾何非線性分析問題；其次，提出了等效水平力的新概念，可以方便地解決橋墩和板式橡膠支座聯合抵抗垂直力所產生的二次效應問題.筆者提出適合於手算的簡便計算公式，概念明確，勿須迭代運算，精度較高，易為設計人員掌握，因此具有實用價值 -
Then novel circuit structure of bi - directional voltage mode ( based on forward converter ) inverters with high frequency link, are proposed, which is constituted of input cycloconverter, high frequency transformer, output cycloconverter, input and output filter ; the circuit topologies family of this bi - directional voltage mode inverters with high frequency link include six circuit topologies, such as push pull - full wave mode, push pull - full bridge mode, half bridge - full wave mode, half bridge - full bridge mode, full bridge - full wave mode, and full bridge - full bridge mode etc. taking full bridge - full bridge mode circuit as an example, principle of uni - polarity phase shifting controlled bi - directional voltage mode inverters with high frequency link is introduced
本文首先論述了dc / ac逆變技術的應用前景及發展現狀。基於正激forward變換器的雙向電壓源型高頻環節逆變器電路結構，由輸入周波變換器、高頻變壓器、輸出周波變換器、以及輸入、輸出濾波器構成;雙向電壓源高頻環節逆變器電路拓撲族，包括推挽全波式、推挽橋式、半橋全波式、半橋橋式、全橋全波式、全橋橋式六種電路。 -
Results of illustrative examples of a six - bay plane truss bridge model are given in order to demonstrate the effectiveness of the proposed procedure
最後，用一六跨平面桁架橋模型進行數值模擬，驗證文中所提方法的有效性。 -
Two add - in card are designed, one interfacing pci has two pci slots in extending bus, the other one interfacing compactpci has two pmc slots. first, pci bus and pci - pci bridge theory are proposed, then the used intel chip is introduced
一共設計兩塊擴展卡，一塊是pci介面，擴展出的pci總線上放置兩個pci槽;一塊是compactpci介面，擴展出的pci總線上放置兩組pmc槽。 -
Through analyzing the 324 highway ' s partial cement concrete road surface, sloping slurry, escapes spatial, bridge head jumps off, roadbed subsidence and so on, the grouting technology is proposed
摘要分析某國道路段部分水泥混凝土路面斷板、唧泥、脫空、破碎及橋頭跳車、路基沉降等主要病害，提出採用灌漿技術來解決。 -
The method presented in this paper is used to analyse and guide construction of fuchunjiang river bridge, the approach degree between construction and design satisfy code, the example is a good illustration of the soundness and practical value of the proposed method
結果採用提出的方法對富陽富春江大橋進行了施工控制的全過程計算研究並指導施工，得到的成橋狀態滿足設計和規范的要求，證明其正確性及工程實際價值。 -
The fem and the light - elastic experiment methods were used to analyze the joint zone and the results indicate that the proposed method is reasonable and convenient for this bridge
通過有限元計算和光彈試驗對這種連接形式進行了研究。結果表明這種做法不但受力合理，而且施工方便。 -
According to the dynamic evolvement rules of the stress, strain and fracture distribution or fatigue cracking mechanism, fatigue equation and axle load conversion of the steel bridge deck asphalt mixture surfacing are proposed
依據鋼橋面瀝青混合料鋪裝體系復合結構的應力場、應變場和損傷場在疲勞過程中的動態演變規律以及疲勞裂縫的形成機理，推導出鋼橋面瀝青鋪裝層疲勞性能方程和車輛軸載換算公式。 -
Abstract : three - dimension wheel - rail contact geometry is taken into account in studying the vibration between bridge and vehicle. the iteration method of wheel - rail creep force is proposed to improve the existed calculating method
文摘:對車橋耦合振動研究中輪軌關系的線性方法進行了改進，提出考慮三維非線性輪軌接觸幾何，採用迭代法求解法向力和蠕滑系數。 -
Abstract : variation of flow condition caused by the multi - pur pose regulation schemes has been investigated on the basis of measured date in r iver model. flood - control of the upper river, operation of the power - station, saf ety of the bridge and power - station, navigation and evolution of the river are a nalyzed. a reasonable and feasible project alternative and the improvement measur ement are proposed
文摘:涪江潼南河段防洪整治是一項以防洪為主體的綜合性河岸整治工程，在平面二維數值模擬計算的基礎上再進行河工模型試驗，比較分析各防洪整治方案下潼南河段水流條件的變化，及其對上游防洪、河道、大橋、電站、航運、河勢的影響，提出合理可行的工程方案 -
The construction of the bridge began in oct 1999, and the closing up of the steel tube was in dec 2000. during that period, i learned and analyzed the current construction methods fairly comprehensively, and collected the construction technique data of the cfst arch bridges having been built. based on this, aided by the simulation of construction procedure using finite element program, i proposed the operation program to make the steel tube segment be located at one time, and the scheme of dividing rooms to segment pouring
大橋於99年10月開工， 2000年12月主橋鋼管合龍，在此期間，本人就目前鋼管混凝土拱橋的施工方法進行了較全面的了解和分析，搜集了此類已建橋梁的施工技術資料，在此基礎上，又藉助有限元程序對施工過程模擬計算的支持，提出了在梅溪河大橋懸臂安裝過程中，鋼管節段一次就位的操作程序和鋼管混凝土分倉灌築的方案，並為施工單位采納應用。 -
A novel cycloconverter - rype three - phase hf link inverter topology for soft - switching based on phase - shifted full - bridge mode is proposed, whose main advantages are as follows : under the conditions of d < i < and overlap - d, the switches of the leading leg are turned on at zvs and the switches of the lagging leg are turned off at zcs and all switches of the cycloconverter circuit are commutated in the overlapping mode in the interval of zero voltage, which makes the circuit realize soft switching to the utmost extent and reliably solve the problem of peak voltage caused by the storing energy of leakage inductance of hf transformer
論文提出一種新型移相全橋軟開關周波變流型三相高頻鏈逆變器，電路的主要優點是：前級移相全橋的移相角控制在_ d _ i和_ （ overlap ） - _ d條件下，超前橋臂零電壓開通，滯后橋臂零電流關斷，並使周波變流器所有開關在零電壓期間重疊換相，使整機開關最大程度地實現了軟開關，並可靠解決了高頻變壓器漏感儲能引起的電壓尖峰問題。 -
Due to the complexity of the structure and control of cycloconverter - type three - phase hf link inverter for soft - switching based on phase - shift - controlled full - bridge mode, a simple and optimized vvvf control strategy is proposed. this control strategy includes : produced pwm by space voltage vector ( svm ) and equivalent carrier frequency fe = 1 / te are introduced into the pdm control of the cycloconverter ; softened equivalent pwm wave is generated at the notches of hf voltage pulses ; the harmonious control between regulating pulse width by phase - shifted angle and regulating voltage of equivalent pwm is to minimize the harmonics content of output voltage of the inverter
西安理工大學博士學位論文針對這種前級移相全橋軟開關周波變流型三相高頻鏈逆變器結構和控制的復雜性，提出了一種實現簡單而整體優化的vvvf控制策略:將空間電壓矢量產生p姍的方法svm和等效載波頻率fe = 1 / te引入到周波變流器的pdm控制;按高頻電壓脈沖前後沿軟化等效p翎波;用移相調節高頻脈沖寬度和等效p姍調壓協調控制逆變器輸出電壓，在滿足輸出電壓條件下使諧波最小。 -
The third part : according to the verified structural damage identification method and supposing the to - be identified parameters to be independent and have normal distribution, the scheme of identifying bridge structure damage is proposed by using the probability damage identification method. assume the zero - order, the first - order and the second - order perturbation statistics of the frequencies and the mode shapes of the bridge structures are known, and substitute them into the statistics property formulas of the frequencies and the mode shapes, as a result an objective function including the mean values and the variance of all the identified parameters is established. set
對于連續梁橋，當損傷位置位於跨中附近時，大多數無損傷單元的損傷概率均在10 %左右，可作為小概率事件，不發生損傷，但與損傷單元相鄰的無損傷單元，其損傷概率達到20 %以上，很難被排除，只有對這些單元進行二次識別，才能得到比較可靠的計算結果;如果損傷位於支點附近時，則不會出現上述情況，對于無損傷單元，損傷概率都小於10 % ，不發生損傷，損傷識別結果 -
A 6kw svm - based hysteresis current controlled three - phase full - bridge prototype circuit with the proposed controller has been built, and experimental results are also shown
在完成的6kw電流滯環控制空間矢量調制（ hcc - svm ）的三相全橋逆變器中驗證了其效果，給出了試驗結果。 -
The proposed bridge linking macau with zhuhai and hong kong will be an important part of this
正在討論興建中的連接澳門、珠海和香港的大橋將是重要的組成部份。 -
However, building the proposed bridge requires the consensus of guangdong province and the macau sar
但是，興建這條大橋還必須得到廣東省和澳門特別行政區的共識。 -
The proposed bridge link will have significant visual impact and undermine the landscape and visual quality of the area
建議的橋梁會造成嚴重的視覺影響，並會破壞這個地區的景觀和視覺質素。 -
The proposed bridge linkage is planned to link up hong kong with the western bank of prd and to further strengthen the economic ties with the western region of guangdong and guangxi province
建議的大橋會連接香港與珠江三角洲西岸，進一步加強香港與廣東省西部及廣西省的經濟聯系。 -
The sources said the proposed bridge ， which could be finished by 2010 if it is approved by the mainland and sar governments ， could recover investment seven or eight years after completion
消息來源透露，倘若中國和香港政府落實興建大橋，大橋可在2010年建成，並於七至八年內回本。
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