無載式驗 的英文怎麼說
中文拼音 [wúzǎishìyàn]
無載式驗
英文
no load test- 無 : 無Ⅰ動詞(沒有) not have; there is not; be without Ⅱ名詞1 (沒有) nothing; nil 2 (姓氏) a surn...
- 載 : 載Ⅰ名詞(年) year : 一年半載 six to twelve months; six months to a year; 三年五載 three to five ...
- 式 : 名詞1 (樣式) type; style 2 (格式) pattern; form 3 (儀式; 典禮) ceremony; ritual 4 (自然科...
- 驗 : 動詞1. (察看; 查考) examine; check; test 2. (產生預期的效果) prove effective; produce the expected result
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In this thesis, studies are focused on as follows : ( 1 ) based on analyzing the general transfer - matrix, the conception of the generalized double layer soil model is proposed, and the transfer - matrix ( r ) of half - infinite elastic mass is introduce - d to the analytic expressions of stress and settlement under the uniform circular, rectangular and strip vertical loads in multi - layered soil ; ( 2 ) according to the analytic expressions of the additional stress and settlement under unifo - rm circular in multi - layered soil, rectangular and strip vertical loads, the programs are develop - ed to resolve and debugged. the results show that the programs are correct ; ( 3 ) through calculating the coefficient of additional stress on the central axis of uniform circ - ular vertical loads, under the corner point of the uniform rectangular vertical loads, and on the central axis of uniform strip vertical loads, and the settlement on the center of uniform circular vertical loads and uniform rectangular loads in double - layered soil, the characters of stress and settlement are discussed ; ( 4 ) a case, as an example, is studied with different calculation methods, such as traditional theory, fem. the results obtained are compared
本文在已有研究成果的基礎上進一步開展了以下幾方面的研究: ( 1 )在對層狀地基傳遞矩陣法中的總傳遞矩陣分析的基礎上,提出了廣義雙層地基模型的概念,並把半無限體的傳遞矩陣r引入到多層地基在圓形垂直均布荷載、矩形垂直均布荷載及條形垂直均布荷載作用下附加應力與沉降的解析式中; ( 2 )根據多層地基在圓形荷載、矩形垂直均布荷載及條形垂直均布荷載作用下附加應力與沉降的解析式,編制了程序,調試通過並驗證了其正確性; ( 3 )通過對雙層地基圓形垂直均布荷載中心軸線上的附加應力系數和荷載中心沉降,矩形垂直均布荷載角點下的附加應力系數和荷載角點沉降及條形垂直均布荷載中心軸線上的附加應力系數進行的計算,探討了雙層地基中的附加應力與沉降特性; ( 4 )應用本文的層狀地基體系理論對一個工程實例進行了計算分析,並與傳統的計算方法的計算結果和有限單元方法的計算結果進行了對比分析,結果表明利用層狀地基理論計算更能反映地基中附加應力分佈的實際情況。In the meanwhile, we build a complete simulation model of layered wireless self - organizing routing network and verify feasibility of network architecture and key technologies, including operating mode of wireless interface, addressing and routing in lwsrn we study the performance of wsrn in terms of routing overhead, packet delivery ratio, and the communication capability, and compare these result with that of ad hoc network
同時,構造了完整的分層結構的無線自組織路由網路模擬模型。驗證了網路體系結構和關鍵技術的可行性,包括無線通道工作方式、網路編址技術、網路路由過程。並通過模擬分析了分層結構的無線自組織路由網路的路由負載、網路數據到達率和網路通信容量。The vitality and anonymity make the traditional signature unable to adapt to the social communication lack of paper environment, which leads to legal subject unable to be identified, idea express distrusted, the right and duty independent. electronic signature, electronic certification and the law of electronic signature appear accordingly
由於網路空間的虛擬性和匿名性,使得傳統書面簽章因缺乏紙本環境而無法適應以網際網路為載體的社會交往模式,從而造成了主體雖然存在,卻缺乏可靠驗證無法辨認其身份,不可信任其意思表示,權利義務無所憑依等問題。This article describes a way of special ultrasonic system which monitors thermal stress in seamless welded rails. this monitoring system is a non destructive testing system, which adopts avr mcu and high - precise time chip processing as the core of it, and adopts the critically refracted longitudinal wave as the object of measuring. my studying focuses on the theory of the monitoring system, which will be listed in this arctile : according to the snell theory, the theory of motivating of critically refracted longitudinal wave is described in details, and the finite element software is used to emulate the propagating course. the formulas of calculating the pts of swr are taken from the acoustoelasticity theory, and the calculating the parameters is introduced. according to assemble materials, three kinds of ways of monitoring the pts of swr using critically refracted longitudinal wave are described, which are measuring the sound - time in changeless distance, ultrasonic critical - angle refractomery and frequency spectrum, the first way of ways is used in this experiment system. the factors, which effect the monitoring system, are assaid in some degree based
本文的研究工作重點在無縫焊接鋼軌溫度應力測量系統的理論模塊,包括根據snell原理,研究極限折射縱波的激發機理,並使用有限元軟體ansys進行模擬;根據聲彈性理論以及公式推導出計算無縫焊接鋼軌中的溫度應力的公式,並對其中參數的求解方法進行介紹;根據收集的資料,介紹了三種使用極限折射縱波測量無縫焊接鋼軌溫度應力的方法,即固定距離測量聲時法、臨界角折射法和頻譜分析法,本實驗系統使用的是第一種;根據實驗經驗以及相關資料,分析了影響極限折射縱波測量溫度應力的幾個因素,並提出了相應的解決方法;根據實驗系統的需要,獨立設計並加工出相關配套的實驗設備,包括實驗鋼塊、有機玻璃楔塊、固定件、載荷外框裝置等。Steel fiber reduces the size effect of shear resistance of reinforced concrete beams without web reinfocements. the size effect formula is proposed in this paper, it is better agreement with test data. 5
鋼纖維對鋼筋混凝土無腹筋梁斜截面承載力「尺寸效應」具有降低作用,本文提出了與現行規范相銜接的鋼筋鋼纖維混凝土腹筋梁斜截面承載力「尺寸效應」計算公式,與現有的試驗資料符合良好。The research works and conclusions of this paper as following : 1. besed on the test results published over the word of reinforced concrete beams without web reinforcements and with stirrups, the systematically statistical analysis is carried out to set up the fomula of shear resistance of reinforced concrete beams using the uniaxial tensile strength of concrete. it provided the basis of strtistical analysis for shear resistance of steel fiber reinforced concrete beams
根據收集到的國內外對鋼筋混凝土無腹筋梁和鋼筋混凝土有腹筋梁的斜截面承載力試驗研究成果,進行了比較系統的綜合統計分析,提出了採用混凝土軸心抗拉強度研究成果,進行了比較系統的綜合統計分析,提出了採用混凝土軸心抗拉強度指標的鋼筋混凝土梁斜截面承載力計算公式,為鋼筋鋼纖維混凝土梁受剪承載力試驗結果的統計分析提供了基礎。The results of the studies show that, when fine medium belt, proper load and velocity are selected, the transmission performance of gear with meshed medium belt is superior to invloute gear ' s ; furthermore, it can be lubricated with water, and it ' s effects are almost fine to the lubricant effects with oil. so we can realize a " green lubrication " type of gear transmission
試驗結果表明:選擇適當的介質帶材料和一定的載荷速度條件,帶式嚙合介質齒輪的傳動性能優于漸開線齒輪,並可用水進行潤滑,幾乎達到在油潤滑條件下的效果,實現一種節能、無污染的綠色潤滑齒輪傳動;相對于漸開線齒輪,帶式嚙合介質齒輪具有顯著的減振降噪作用,動態特性優越。There are two different constitution forms for the square tubes with ribs in the test specimens, one consists of two welded channels with stiffening lips ( channel tubes ), stiffening lips ( angle tubes )
根據無肋、單向設置斜肋和雙向設置斜肋3種截面形式、 2種截面尺寸的18個薄壁鋼管混凝土軸壓短柱試驗結果,比較和分析了各試件的試驗現象、破壞模式及荷載位移曲線等。Theoretical and experiment researches of transmission mechanism and control strategy of the cvt have been carried out under the project ( 59835160 ) financed by national natural science foundation which includes follow content : 1 ) the kinematic relation of the metal pushing v - belt type transmission is analyzed. the relation among oil pressure of pulley cylinder, transmission ratio and input torque under load condition is studied. optimal design method for metal pushing v - belt type continuously variable transmission is put forward
本文在國家自然科學基金重點項目(資助號: 59835160 )資助下,對金屬帶式無級變速傳動系統的傳動機理、匹配及控制策略等進行了系統深入的理論分析和實驗研究,具體研究內容如下: 1 )系統地分析了金屬帶無級變速傳動的基本運動規律,研究了在負載狀態下,帶輪油缸壓力與速比和輸入轉矩的關系,提出了對金屬帶式無級變速傳動系統進行優化設計的方法。This paper put forward the realization method of a kind of multi - function general use inverter system which added other functions based on the independent sine wave inverter, it not only can be used as independent inverter power supply but can be used as an in - support mode ups which realize synchronous with the phase of power grid voltage and realize to switch with power grid mutually, it also can realize three phase ac output by the combination of three synchronous inverters, experiment proved it in this way has a stronger ability of resisting three phase unbalance load
本文提出了一種基於獨立正弦波逆變器的功能之上復合其他功能而成的多功能通用逆變電源系統的實現方法,此系統不僅可以作為獨立逆變電源使用,還可以與電網電壓的相位同步,作為后備式正弦波ups使用,在逆變電源和電網的相互切換時能做到對負載無影響,同時還可以由三臺逆變器進行組合自同步實現三相對稱交流輸出,實驗證明這種方式具有較強的抗三相不平衡負載的能力。Based on tests of three moment - resisting beam - column connections under low reversed cyclic loading, this paper inquires into the failure pattern, hysteresis loop curves, displacement - restoring capacity, displacement ductility and energy dissipation of the precast prestressed beam - to - column concrete connections with unbonded tendons
摘要通過三個框架節點在低周反復荷載下的試驗,對無粘結預應力裝配式混凝土框架連接的破壞形態、滯回曲線、變形恢復能力、位移延性、能量耗散等性能進行了研究。Abstract : in this paper, six partially prestressed concrete special type slab bridge models with unbonded tendons are introduced. from the experimental results, the equation that calculates the unbonded tendon stress increment is obtained. the computed results show a good agreement with the tested results
文摘:介紹了6塊無粘結部分預應力混凝土異形板橋的靜載試驗,建立了部分預應力混凝土異形板橋中無粘結筋應力計算公式,並將所建立經驗公式的計算值與試驗值進行了比較。From the experiments, the number and width of fracture are obviously decreased, and pasting cfrp laminates play important role in improving rc construction durability ; with anchoring, premature is prevented and the ultimate shear capacity is increased ; taking properly anchoring measure, the ultimate shear capacity of rc t - section beams of initial loads is higher than that of no initial loads ; under non - anchoring case, because the rehabilitation of rc t - section beams with cfrp laminates are destroyed suddenly, the reinforcement effect maybe decrease
試驗結果表明,粘貼碳纖維布顯著減小了鋼筋混凝土t梁的裂縫數量和寬度,抑制了裂縫的開展,對提高普通鋼筋混凝土構件耐久性有重要作用;採用適當的錨固措施可以有效防止構件發生早期破壞,提高構件的極限抗剪能力;對于有錨固的粘貼方式,有預加載的t梁抗剪極限承載力明顯高於無預加載的t梁。試驗還表明,在無錨固的情況下,用碳纖維布作抗剪加固后的t梁破壞較突然,有可能使梁的加固效果出現負效應。The test methods of short circuit and overload protection of non - inherently short - circuit proof transformer and fail - safe transformer
無危害式安全變壓器的短路和過載保護試驗( 2 ) the study on lateral resistance of lgsfcbw. because the lateral performance of the lgsfcbw is quite complex and dependent of many factors, theoretic calculation is unpractical and study is on the basis of test all over the world
( 2 )輕鋼龍骨復合承載墻體( lgsfcbw )抗側性能研究: lgsfcbw抗側能力影響因素眾多、理論計算困難,各國均以試驗研究為基礎而無合適的公式。The project is completed in the collaboration of the transportation college of jilin university and transportation science institute in jilin province. the paper mainly studies the characteristics and mechanical performance of small size member of bridge, the problems of concrete dense degree and shear lag effect of wide flange. the static load test and supersonic nondestructive test of four pieces of prestressed i - girder with varying section are carried out in bridge structure laboratory of jilin university
本文針對橋梁構件局部尺寸較小部位的混凝土密實度問題,進行了2片腹板寬度為14cm , 2片腹板寬度為16cm的變截面預應力工字梁的靜載試驗和超聲無損檢測試驗,提出密實度系數的概念,對試驗梁的密實度進行定量評定,推導了工字梁的塑性系數公式,基於塑性理論給出了試驗梁的開裂荷載和極限承載能力計算公式,分析了試驗梁的密實度對其開裂荷載和極限承載能力的影響。The major research of this paper is that : 1, it is analyze the displacement response of the elastic - foundation beam by the static loads and the moving loads, the dynamic response of winkler beam, analyze the influence of the sleeper in the dynamic response of the rail system. and compare the result with the experiment formulation. it is concluded that the continuous model only fit for the lower moving velocity of loads
本文主要進行了以下幾方面的研究: 1 、首先對靜力荷載作用下彈性地基梁的位移反應、文克爾梁模型的動力響應,及枕木在軌道系統動力響應中的作用進行了分析,並與傳統採用的經驗公式進行對比,以此分析了連續性模型只適用於荷載移動速度較低的情況下,在速度較高的情況下,特別是接近臨界速度時,連續性模型是無效的。2. based on the test results published over the word of steel fiber reinforced concrete beams without web reinforcements and with stirrups, the effects of steel fiber to shear resistance and the relationship of steel fiber to stirrups are analyzed, the improvements of steel fiber to failure states of reinforced concrete beams without web reinforcements are discussed. it is proposed that the formula of shear resistance of steel fiber reinforced concrete beams based on the model of the current design and construction spectification of steel fiber reinforced concrete structures ( cecs38 : 92 ), used of the uniaxial tensile strength of steel fiber reinforced concrete, and combined with different formulas specified in current design codes of concrete structures issued by different trades
根據收集到的國內外對鋼筋鋼纖維混凝土無腹筋梁和鋼筋鋼纖維混凝土有腹筋梁的斜截面受力性能試驗研究成果,對鋼纖維在增強鋼筋混凝土無腹筋梁和有腹筋梁斜截面承載力方面的作用及其在箍筋抗剪承載力的關系進行了總結分析,對鋼纖維改善鋼筋混凝土梁破壞形態方面的作用進行了分析討論,提出了採用鋼纖維混凝土軸心抗拉強度指標,基於現行cecs38 : 92 《鋼纖維混凝土結構設計與施工規程》計算模式、能夠與目前國內各行業現行混凝土結構設計規范中不同的鋼筋混凝土梁受剪承載力設計方法配套使用的鋼筋鋼纖維混凝土梁受剪承載力設計方法。分享友人