載荷指數 的英文怎麼說
中文拼音 [zǎihézhǐshǔ]
載荷指數
英文
load index-
The paper described the building process of model that can identify the shock - absorber parameter of landing gear and at the same times optimize performance of system. in this paper, there are also some debate, it include identifying parameter which can not be measured, such as the air polytropic exponent and the orifice discharge coefficient of shock - absorber
本文利用復合形優化演算法建立了起落架緩沖系統參數識別與系統優化模型，對緩沖器空氣壓縮多變指數和油孔流量系數等不可測參數的識別和著陸、滑跑載荷多目標優化問題進行了討論。Under action of uniformly or polynomial distributed load, upper and lower critical loads of revolving shells ( including conical shells, spherical shells and quartic polynomial shells ) with uniform thickness, linearly, exponentially or polynomial variable thickness were evaluated
給出了均布或多項式分佈荷載作用下，等厚度、線性、指數型或多項式型變厚度的圓錐殼、球殼或四次多項式型旋轉殼的上、下臨界荷載。Based on the fem program on fracture of plane structure developed by professor fu xiaoling of ho hai university, a two demension damage and fracture finite program package which is programed in fortran 90 language is developed. the paper adopts the plane - eight - nodes isoparameters element and compute the developing law of the damage and macro - damage of plane structure under load. considering the original damage and tension and compression damage at the same time, the paper adopts the more reasonable concrete constitute relation of two demension and exponent function model
在河海大學符曉陵副教授所編制的平面結構斷裂有限元程序（ dl08p4 ）基礎之上，本文用fortran90語言編制的二維損傷-斷裂有限元程序包，程序採用平面八結點等參數單元分析計算平面結構在外荷載作用下損傷及宏觀裂縫的發展規律，考慮了混凝土結構體內存在著初始損傷和同時存在的拉、壓損傷，並且採用更為合理的具有損傷含義的混凝土二維本構關系（即正交異性損傷模型中的本構方程）和指數函數模型建立的並可進行拉、壓損傷可比性換算的損傷演變方程，較為真實地反映了實際情況。At first, based on the results of in - situ load tests, the load - settle curves are acquired, and the effects of different reinforcement parameters are presented. these parameters include the linear density ratio ( ldr ) ; the location of the top layer of the geobelt measured from the bottom of the load plate ( u ) ; the different materials of geobelt ; the number of reinforcement layers ( n ) and the distance between the two layers of geobelt ( a h ). these results show that the bearing capacities of the reinforced composite foundation can be improved and the settlement can be reduced
首先，通過現場載荷試驗，獲取了加筋墊層復合地基荷載-沉降曲線，從筋帶鋪設的密度、筋帶的首層間距、不同筋帶材料、加筋層數以及雙層筋帶的層間距等幾個方面分析了以上加筋參數對加筋復合地基承載力的影響，指出筋帶的存在提高了加筋復合地基的承載力，減小了沉降。Through the simulation of the forming process, we can get the deformations, stress, strain, plastic flowing in sheets and the interface state under impact load and rolling load, the deformation of the sawtooth form and comparing to the initial state, the results above are expressed in computer animated way. and the effect of geometrical ( mainly different form, including 90 degree, isoceles triangle ， 75 degree, and 1. 5 high and wide ), material and technical parameters on the bond strength are analyzed, also including the comparison of different sawtooth form. the optimum parameters are got
對雙金屬復合板成型過程進行模擬，從而得到在沖擊載荷和軋輥壓力作用下基板和覆板的應力、應變分佈和塑性流動變形規律，復合后的齒形的變形情況與初始齒形形成對比，以動畫的方式模擬成型過程，並分析了不同幾何參數（主要是不同的齒型，其中包括直角齒型、等腰齒型、 75度齒型、 1 . 5高寬齒型） 、材料參數、工藝參數對復合強度的影響，以及不同齒型的變形對比以及齒型對復合情況的影響，提出最優齒型、最優工藝參數，有效地指導了實驗。In this section the author analyses the rules of the pile ultimate tip resistance and the shaft friction resistance distribution and their exertion of cast - in - place socketed piles instrumented with strainometers in soft muddy rock. the second aspect of the paper is the analysis on the current rock pile vertical bearing capacity in the four standards gb50007 - 2002, tb 10002. 5 - 99, jtj024 - 85 and jgj94 - 94, then the design method with correlated formula of socketed piles in xigeda - mudstone is given. at the end of this paper, based on the research of pressure grouting technique in recent years, and combined with in - site test result, this paper puts forward the design and calculation method to grouted pile in xigeda - mudstone and the principle of choosing grouting parameters, which provid es experiences for applying this technique and further studying
本論文結合省級科研項目「西攀高速公路昔格達組泥巖層中鉆孔樁提高承載力的研究」 ，所做的研究工作主要在以下三個方面：一是根據8根樁身內埋設量測元件試樁的單樁豎向靜載荷試驗資料，分析了各試驗樁特別是常規沖孔灌注嵌巖樁在昔格達泥巖中的軸向力、側摩阻和樁端阻力的分佈和發揮規律；二是在討論現行規范對嵌巖樁承載力的計算公式的基礎上，探討了在昔格達泥巖層中的沖孔灌注嵌巖樁的側摩阻和端阻的計算方法，並推薦了相應的計算公式；最後，在吸取近年來對灌注樁后注漿技術研究成果的基礎上，結合現場試驗研究結果，分析了該項技術在昔格達巖層中的應用效果，提出了相應的參數選取，從而為壓力灌漿技術的工程應用和進一步研究提供經驗，並為今後在該地層中合理選用樁型以及指導施工提供了依據。Standard test method for determination of the point load strength index of rock
巖石的點荷載強度指數測定的標準試驗方法Cross - country skis. determination of fatigue indexes. cyclic loading test
速度滑雪板.疲勞指數的測定.周期性載荷試驗This article takes hanging off and wide fluctuation of transmition velocity of adsl as example, then analysis centers on the discerte multiple tone and the principle of channel load assignation. from analysis above article points out the root of adsl being sensible of noise signal. at last, reserches effects that window function and barrier effect on frequency and adopts fft to work out the noise power of adsl
本文以電信現在推出的adsl傳輸中鏈路經常掉線和傳輸速率經常大范圍波動為例，重點分析了adsl所使用的dmt調制方式和注水演算法分配通道載荷方式原理，由此指出adsl對噪聲信號敏感的根源，在得到問題的根源之後，分析了窗函數和柵欄效應對頻譜的影響，採用fft方法計算adsl線路的噪聲功率譜，為adsl線路測試提供了可靠的理論依據。The study shows that besides boundary conditions, the factors influencing the nonlinear consolidation behavior of soils are the compression index cc, the permeability index ck, the level and the rate of loading, and the thickness of soil, etc. in nonlinear consolidation, especially for layered soils, the average consolidation degree defined by settlement, us is greater than the one defined by effective stress, up, i. e., the rate of the development of settlement is greater than that of the dissipation of excess pore water pressure
研究表明，除邊界條件外，影響軟土地基一維非線性固結性狀的主要因素是壓縮指數c _ c 、滲透指數c _ k 、荷載大小與加荷速率、土層厚度等。對于非線性固結，特別是成層地基，按沉降定義的平均固結度u _ s大於按有效應力定義的平均固結度u _ p ，即沉降發展速率要快于超靜孔壓消散的速率。Alpine skis ; determination of fatigue indexes ; cyclic loading test
高山雪撬.疲勞指數的測定.周期性載荷試驗After analyze the foundation of the current national code ( code for fire protection design of tall buildings gb500045 - 95 ) through experiments and fire simulations, the author has found that there are some limitations on the use of this national code for the designing of smoke management system in an atrium. this paper has been discovered that it is not enough when using the smoke layer interface height as a criterion to make an assessment on the safety rate in a building fire, or to calculate the egress time
通過上述實驗研究和數值模擬研究，發現當採用我國現行的《高層民用建築防火設計規范》 （ gb50045 - 95 ）來指導中庭建築的排煙系統設計時，在本文設計的火災場景條件下（參照實際的中庭商場調研情況，即火災載荷密度較大時） ，對于本文實驗研究中所採用的相似模型及原型建築，無論是採用自然排煙或者是採用機械排煙，其排煙量皆不足。Alpine skis. determination of fatigue indexes. cyclic loading test
高山滑雪板.疲勞指數測定.周期性載荷試驗Based on extended kalman filter ( ekf ) algorithm, an traditional attitude determination scheme using star sensors and gyros was studied, and proved not able to achieve the required precision. so a new idea called instrument - in - loop was presented what using the attitude information contained in the payload ' s data for the control loop. the simulation proved that the instrument - in - loop method can greatly improve the precision of attitude determination with low cost
建立了svom衛星各種姿態敏感器的測量模型，研究了基於推廣卡爾曼濾波演算法的「星敏感器+光纖陀螺」定姿方案，指出了其無法滿足svom衛星的定姿精度要求，並提出了instrument - in - loop的思想，即利用衛星有效載荷測量數據中蘊含的高精度姿態信息來濾波定姿，從而在避免使用昂貴的星敏感器的同時大大提高了系統的定姿精度。The relation of the film thickness, the leakage and the carrying capacity of the reactions in practical condition are pointed out. it has calculated the load coefficient and spring strength and so on
指出了具體條件下膜厚、泄漏量及承載力的關系，並對干氣密封的載荷系數、彈簧力等進行了計算。Under action of uniformly distributed load or line load along inside edge, the upper and lower critical loads of truncated spherical shells with exponentially variable thickness and rigidly clamped edge were consistent with those obtained by other methods
在均布荷載或內邊緣均布線荷載作用下，指數型變厚度固定夾緊開頂球殼的上、下臨界荷載得到了同其他方法一致的結果。( 5 ) another is the long - term predict utilizing the biggest index number lyapunov in the chaotic time series and the whole space method during the steady period of the road foundation load, after the overload of the road foundation finished. meanwhile, contrasts with some mature settlement predict methods, estimating some important section in the engineering synthetically, making sure an ideal outcome of the predict warp, then unload the overload of road foundation and make it satisfy the design request
（ 5 ）路基超載完成後，在路基荷載穩定期間內，利用混沌時間序列中的最大lyapunov指數和全域法進行長期預測，同時與一些比較成熟的變形預測方法進行對比，對工程中一些重點斷面進行綜合評判，確定一個較理想的預測結果，從而對路基超載進行卸載，使其滿足工程設計要求。The rayleigh - ritz method is used to lead to analytical expressions for the stiffness and mass matrices and load vector as well as their sensitivities, which uses the simple polynomials to define assumed displacement functions, geometry and construction of wing structures. excluding some selected terms from the displacement functions or using stiff springs at the specified locations imposes boundary conditions. the accuracy of calculated results is improved by including transverse shear effects and using multiple sets of ritz functions in the analysis
它使用簡單多項式作為ritz基函數、定義翼面的幾何和結構參數，利用rayleigh - ritz方法導出翼面結構的剛度矩陣、質量矩陣和載荷向量及其靈敏度的解析表達式，通過排除位移函數中某些選定的項或在指定點使用約束彈簧施加各種邊界條件，考慮橫向剪切變形和使用多組ritz基函數改進分析的質量，使用等效蒙皮和等效夾芯技術提高計算效率。Adopting the deformation harmony theory, the numeric calculation of the curve of load versus settlement is made. the fitting results between the calculated curve of load - settlement and the measured one of piles with different construction process are illustrated. hence, under the condition of few or no static load test data, the performance of bearing capacity of single bored pile in loess may be predicted utilizing indexes of shear wave velocity, static cone penetration test and modification coefficient of depth, so it is remarkable to reduce the blindness of preliminary design of pile
通過室內試驗及原位測試指標進行理論計算與現場實測值的對比，筆者引入了施工工藝修正系數k _ （ c1 ）和k _ （ c2 ）及深度修正系數，使理論計算值與現場實測值具有良好的一致性，進而通過變形協調理論對荷載?沉降曲線進行數值計算，並用不同施工工藝的實例說明了理論計算荷載?沉降曲線與實測荷載?沉降曲線的擬合效果，從而達到可在不做靜載荷試驗或少做靜載荷試驗的情況下通過剪切波速和靜力觸探試驗指標以及施工工藝修正系數等預測黃土地基中鉆孔灌注樁承載性狀，這對于工程初步設計中減少設計的盲目性具有十分重要的現實意義。Various previous methods are summarized and classified into two categories : semi - math methods and pure - math methods. based on discussion of the common and difference among these methods, multiple - exponential model is presented. using the new method to predict settlement of some sections in su - jia - hang expressway, the result indicates that the new method can accurately predict settlement and has practical value
總結以往荷載穩定后的沉降預測方法，並將其劃分為半數學方法與純數學方法，尋找各種預測方法相互之間的聯系與差別，提出復合指數曲線預測方法，並運用新方法對蘇嘉杭高速公路重點段落的部分斷面進行沉降預測，驗證了新方法的預測功能和實用價值。分享友人