境振動 的英文怎麼說
中文拼音 [jìngzhèndòng]
境振動
英文
ambient vibration-
With the development of social economy and the raise of people ’ s living quality, the elevated railroad has brought us with great convenience, at the mean time it also can cause environmental vibration which the influence to human ’ s life and work environment has aroused widely attention
隨著社會經濟的發展和人民生活質量的提高，地鐵軌道交通給我們帶來快捷和便利的同時，所引起的環境振動對人類生活和工作環境的影響已經引起了越來越廣泛的關注。Secondly, through analyzing the failure instance of electrical connectors in using and testing environment, educed contact fault was a main mode of failure of electrical connectors. on natural working conditions, the main reasons which caused fault of electrical connector were contact stress decreasing, microseism wearing and tearing and surface film growing
而在正常的工作條件下，造成電連接器電接觸失效，即決定電連接器工作壽命的主要原因是接觸壓力減小、微動磨損和表面膜層的生長，而影響接觸壓力、微動磨損和表面膜層變化的主要因素是環境振動和溫度。The vibration measurement and evaluation due to the traffic loads
交通荷載引起的環境振動實測與分析Engineering earthquake safety evaluation of the nuclear power station dam site and brige etc. seismic gonation and microgonation, earthquake disaters estimation and mitigation, engineering structure ' s dynamic characteristic etc
核電站、大壩、大型橋梁等重大工程的地需安全性評價；地震區劃和小區劃，震賃評估、預測及其減賃對策，工程自振特性和環境振動測試，爆破公害的控制設計等。3. the frequency differences are determined by both the power spectral density ( psd ) and cepstrum of ambient vibration measurements. a matlab - based toolbox is developed, in which the differences of the higher adjacent frequencies can be easily evaluated
3 .使用功率譜頻差法和倒頻譜頻差法，開發了基於matlab平臺的斜拉索環境振動基頻識別gui工具箱。Currently, the large space vehicle ’ s vibration test usually adopted dual - shaker system, the electric current phase synchronous controller is one of the equipments importantly in the system. the existing control equipments make use of tri - tek704d controller, and the current feedback in - phase control method
目前，我國大型航天器環境振動試驗採用多振動臺同步激勵的試驗系統來完成，電流相位/幅值同步控制器是並聯雙振動臺同步控制系統中重要的組成設備之一。We have constructed a detecting device of stm for open environment, realized the isolation of environmental vibrations and the shield of electrical noises
設計完成開放環境下的掃描隧道顯微鏡探頭，實現了對環境振動的隔絕和電噪聲的屏蔽。The thesis is aimed at presenting a procedure to establish a baseline finite element model of the qingzhou cable - stayed bridge over the ming river, fuzhou, china that was newly constructed. its main span length of 605m is the longest in the world among the completed composite - deck cable - stayed bridge. the proposed procedure includes several tasks : initial finite element modeling base on the design drawings, field loading tests and ambient vibration tests, and finite element model calibration with the test results
本文以主跨605m的結合梁斜拉橋? ?青洲閩江大橋為背景，首先根據設計圖紙建立該橋完整的初始空間有限元模型，然後根據通車前現場靜力試驗和環境振動試驗結果對初始有限元模型進行校正，通過參數的調整使模型靜、動力計算結果與實測值吻合。Researching on the technology if reverse order is to study strains if pits, structural systems if basement, environmental surwey and underpinnings. on account of emphasizing developing methods if checking strength if pick - ets, modemizing machenes of excavation and studying methods of underpinning is put forward and is a way if controlling the quality of pickets in sites, which leads an active effect ; synthetic application if rankintheory, spatial and time effect theory to excavation tl aanalyze the state of soil force and strain is brought forward and the time effect should be considered in the zone of clay, the formation and development of soil plasticity are analyzed and the most dangerous zone to decide how to excavate and where to begin is found ; analyzing the cause of picket settlement during reverse order and the differential settlement and discussing hlw to solute it. duringh the temporary survey and the environmental warship, bringing rorward the theory of environmental vibration and analyzing the state of soil force and probability of losing stabilization of soil under the effect of environmental vibration ; analyzing the state offeree in underground concrete wall by the method of mathematics and pointing out the place of the maximum force and deformation. based on systematic illustrating the reverse order, problems about application and development of reverse order and suggestions also are expressed
鑒于國內外的研究把重點放在大力發展工程樁的實驗室承載力監測方法與設備、如何使土方開挖機械現代化及對周圍建築的臨測方法上，本文提出了現場利用聲波層析成像技術監測鋼砼樁內部質量的方法與程序，並得出了聲波層析成像技術是砼樁的動態質量檢測的有效手段，這對指導施有積極、現實意義；提出了綜合運用朗肯土壓力理論、基坑空間和時間效應影響理論來分析逆作法施工過程中基坑邊坡土體應力及應變的變化情況，指出粘土地區也應考慮時間效應，並且進一步分析了基坑邊坡土體的塑性區形成和發展，找出邊坡最不利的區域，以確定地下室土體的挖掘的方式和順序，指出憑主觀臆斷與經驗來施工是不可取的；在分析、經較逆作法與大開挖順作法的地下室結構體系受力情況及施工順序的不同，提出了節點處理技術；分析了逆作法施工期間樁的沉降變化原因及由此而產生的差異，並探討了解決的方法；本文還提出了環境振動對土體邊坡穩定產生影響的觀點，並分析了在環境振動影響下，土體的應力狀態及土休失穩破壞概率，並且還運用彈性力學知識和數學分析的方法定量地分析了地下混凝土墻受力狀態，指出了被監測墻體的最大應力、應變位置。Secondly, been generalized the failure data of electrical connectors from working and testing environment, electric contact failure, insulation failure, mechanical connection failure and other failure are four mainly failure modes of connectors, moreover, built the faulty - tree to analyze their reliability level. however, contact fault failure was the most prevalent mode of electrical connectors. under natural working and reserving conditions, the contact stress decreasing, fretting and surface film growing are mainly reasons to make electrical connector failure
其次，通過對現場、試驗場電連接器的失效情況進行統計和分析，總結出電連接器的四種主要失效模式：電接觸失效、絕緣失效、機械連接失效和其他失效，並對電連接器進行了故障樹分析，指出電接觸失效是電連接器失效的主要形式，而在正常的工作條件下，造成電接觸失效，即決定電連接器工作壽命的主要原因是氧化膜層的生長、接觸對磨損以及磨損腐蝕物的堆積，而影響氧化膜層的生長、接觸對磨損以及磨損腐蝕物堆積的主要因素是環境振動和溫度應力，為電連接器進行失效機理分析奠定了基礎。The key points of this paper can be concluding as follows : 1. the regulations of vibration attenuation of a subway are concluded by analyzing the situ data. in the zone near rail, the high - frequency vibration is stronger than other weight, and in the zone far away from railway, the results is opposite
主要研究內容和結果如下: 1 .對某地鐵線路環境振動實測數據進行了分析，得到了振動波在土中的傳播規律:地鐵運營誘發振動傳播過程中，近軌區域以高頻振動為主，遠軌區域以低頻振動為主。So this program can predict the environmental vibration induced by railway and subway and can provide foundation for feasibility study and construction design of railway and subway
因此，本程序可以對地面鐵路和地鐵所引起的環境振動進行預測。從而為普通鐵路和地鐵的可行性研究和工程下一步的施工設計提供依據。Evaluation method of the environmental vibration effects caused by dynamic compaction
強夯施工環境振動影響的評價方法Measurement method of environmental vibration of urban area
城市區域環境振動測量方法Standard of environmental vibration in urban area
城市區域環境振動標準In the meanwhile, a simple prospect about recent developments of eve in china is carried out as well
對我國環境振動試驗的近期發展進行簡短的展望。Application of secondary fuzzy comprehensive evaluation to the urban vibration functional zoning
二級模糊綜合評判法在城市區域環境振動功能區劃中的應用The new situation that faces the environment vibration experiment ( eve ) and the background of this change are expounded
摘要闡述環境振動試驗面臨的新情況及其發生的背景。Environment vibration will cause vibration displacement between the work piece and the tool, influencing the accuracy and surface quality of work piece
環境振動會引起切削刀具與被加工零件間的相對振動位移，影響被加工零件的精度和表面質量。Understanding the mechanism of vibration generation and its propagation rule is the prerequisite to evaluate environmental vibration correctly and appropriately
要做出正確、適當的環境振動評價，首先要清楚列車運行時振動產生的機理及其傳播規律。分享友人