波應力 的英文怎麼說
中文拼音 [bōyīnglì]
波應力
英文
wave stress-
2 transmission of longitudinal stress wave in non - defect pipeline excited by axial symmetry impact has been studied by the numbers
2 、對無缺陷管道中受軸對稱沖擊載荷下激勵出的應力波進行了較為系統的實驗研究。Mechanics course mainly includes the description of movement of objects, the instantaneous effect of strength, spatial build - up effect of strength, temporal build - up effect of strength, nonindividual body mechanics, mechanical wave and sound, relativity, inalterability and covariability and mechanics foundation of the theory of relativity
力學主要內容包括物體運動的描述,力的瞬時效應,力的空間累積效應,力的時間累積效應,連續體力學,機械波和聲,相對性、不變性與協變性和相對論力學基礎等。It make the principle formula become simpler and more practical. by the attenuation regulation and distributing character of stress wave under the linear charge blasting, the paper bring forward the idea that the columniation stress wave can be regarded as cylinder stress wave, the end stress wave as spherical wave. the perfect stress attenuation formula in radical direction is established in complete elastic medium
根據條形藥包爆破應力波分佈特徵及衰減規律,提出了可將條形藥包爆破柱部應力波當作柱面波、端部應力波當作球面波處理的研究方法:建立了理想的完全彈性介質中球藥包和條形藥包爆破徑向應力衰減方程。The temperature of surface concrete varies with environmental temperature, but the conductibility of inner concrete is very poor. as a result, a quick decrease of environmental temperature will lead to large temperature gradient and then tensile stress develop soon in the thick direction, which will probably occur on the entire cross - section
混凝土表面溫度隨外界溫度波動而波動,但內部的導溫性能很差,所以在外界溫度驟降時將引起很大的溫度梯度,從而在厚度方向上拉應力發展很快,這極易引起全斷面拉應力發生。A demodulating strain method that avoids light source ' s fluctuation and environmental factors is put forward
提出了一種不需要雙光路信號就減小了光源波動及環境因素對測量的影響的解調應力方法。The drive band and retainer feature a hex - drive system to distribute drive loading evenly and eliminate overstressing of the flexible elastomer bellows
傳動環和護圈配置一個六角傳動系統,均勻的分配傳動負載,消除柔軟的彈性波紋管上的過度應力。Scattering of sh - wave by a radial collinear crack at the edge of arbitrary - shape - cavity in isotropy media is studied. the solution of dsif at crack tips is obtained
研究了各向同性介質中任意形孔邊徑向裂紋對sh波的散射,求解了裂紋尖端的動應力強度因子。The method of crack - division is used to make radial cracks at the edge of cavity. a series of integral equations for determining the dsif at tips of anti - plane crack are set up in terms of the green ' s function
按「契合」的方式和採用裂紋切割技術構造出孔邊徑向界面裂紋對sh波散射的模型,利用green函數建立直接求解m型裂紋尖端動應力強度因子的定解積分方程組。Numeral results of dsif at radial crack tips of ellipse and square cavities are provided. then the influences of different shape cavities upon the dsif at the crack of their edges are discussed. 5. scattering of sh - wave by a radial interface crack at the edge of arbitrary - shape - cavity is studied
給出了橢圓孔和方孔孔邊徑向界面裂紋尖端動應力強度因子的數值結果,討論了在不同形狀孔、不同入射波數、不同入射角和不同材料常數組合情況下孔邊徑向界面裂紋尖端動應力強度因子變化的規律。A one - dimensional oceanic mixed layer model with the m - y level - 2. 5 turbulence closure schemes is employed. the rate of energy loss by breaking waves is estimated by parameterization and incorporated into the model as a source of turbulence kinetic energy ( tke ) by modifying the existing surface boundary condition of tke equation. the velocity field and turbulence energy budget are calculated under different forcing conditions ( the results given below are for a wind speed of 20 m / s. )
採用一維2 . 5階湍封閉混合層模式,根據參數化方法對波浪破碎導致的能量耗散率進行了估計,通過改變湍動能方程的上邊界條件引入波浪破碎對湍動能生成的影響,計算了不同風應力強迫下的混合層流場結構和湍能量收支(下述給出的結果是取風速為20m s得到的) 。The pre - seismic and post - seismic stress direction can be statistically determined by a large collection of foreshock and aftershock focal mechanism data while the stress drop can be determined through the source fracture inversion from seismic wave data or crust deformation data
地震前後的應力方向可根據大量前震和餘震震源機制統計給出;地震應力降可通過地震波或地殼形變資料的震源破裂反演研究得到。Present situation of research on propagation of blasting stress wave and rock fragmentation effect in remote area
爆破應力波的傳播及其遠區破壞效應研究現狀述評This method applies the extended strip theory to establish the nonlinear ship motion equations in regular head seas, obtains stable time course by resolving in time domain, and then pressure vectors will be available. the pressure includes static pressure, incident waves pressure, diffraction pressure, radiation pressure, and wave impact pressure, and changed with instantaneous draft of each intersection
該方法應用擴展的切片理論建立迎浪規則波中船舶非線性運動方程,通過時域步進求解獲得船舶剛體運動的穩定時歷,進而給出與船體各橫剖面瞬時吃水相對應的靜水壓力變化、入射波壓力、繞射壓力、輻射壓力和波浪沖擊壓力諸分量。The orientation of the principal stresses relative to the directions of the polarizer and first quarter-wave plate is of course immaterial.
主應力相對于起偏鏡和第一個四分之波片方向的方位,當然是無關緊要的。The consolidating wave speed means the speed at which elastic stress wave transmits throughout reinforced concrete, and it is intervenient the inherent wave speed of steel and of the concrete. moreover, the consolidating wave speed inherent in the material of the reinforcing steel bar and the concrete, and it relates to the cling strength of steel bar and the concrete
固結波速是指彈性應力波通過鋼筋-混凝土體系傳播時的速度,通過理論分析得知固結波速的大小介於鋼筋和混凝土中彈性應力波速之間,由鋼筋與混凝土二者的材質特性決定,與二者的粘結強度密切相關。The surface acoustic waves stress sensitive properties of piezoelectric crystal la3ga5sio14 base on stress sensitive coefficients
基於應力敏感系數的硅酸鎵鑭晶體聲表面波應力敏感特性Development of testing stress device by lcr ultrasonic wave
超聲波應力儀的研製The travel time of lcr wave and applied stress showed well linear relationship in the qualitative and quantitative experiments, experimental result matched with the theory, achieved the anticipative requirements. these experiments validated the feasibility of evaluating the stress with lcr wave based on tdc travel time measurement preliminarily
定性實驗與定量實驗顯示, lcr波傳播聲時與加載應力具有良好的線性關系,實驗結果與理論基本相符,達到了預定要求,也初步驗證了基於tdc聲時測量的lcr波應力檢測方法的可行性。There are several methods that are usually applied in engineering practice to examine structure stress : resistance variation method, barkhousen noise method, x radial method and ultrasonic method, etc. with comparasion to others, the ultrasonic method is acknowledged to be one of the most promising non - damaging inspection method in structural stress measurement filed for its fine sensitivity, veracity and good operation features
工程實踐中常用於應力檢測的方法有電阻應變法、巴克豪森法、 x射線法和超聲波法等。同其它檢測方法相比,超聲波應力檢測法具有靈敏度高、準確性好及可操作性強等優點,從而成為一種公認為最有前途的無損檢測方法。This paper introduces the basic theory of stress inspection using ultrasonic at first. the mechanism of the generation of lcr wave is described in detail as well as its application
本文首先介紹了超聲波應力檢測的基本理論,重點介紹了lcr波的產生機理及其在應力檢測中的應用。分享友人