撓性模數 的英文怎麼說
中文拼音 [náoxìngmóshǔ]
撓性模數
英文
modulus of flexibility- 撓 : 動詞1. (輕輕地抓) scratch 2. (擾亂;阻止) hinder 3. (彎曲,比喻屈服)yield;flinch:不屈不撓indomitable; unyielding
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 模 : 模名詞1. (模子) mould; pattern; matrix 2. (姓氏) a surname
- 數 : 數副詞(屢次) frequently; repeatedly
- 模數 : [物理學] modulus; module; modulo; mod
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Because of flexible object of wire rope, it is inevitable to produce elastic spread under the load, the value of critical parameter - elastic modulus relates to the precision and safety in designing of machinery
鋼絲繩屬撓性體,負荷時不可避免出現彈性伸長,其關鍵參數彈性模量的取值問題關繫到機械設計的精度與安全性。Along with the progress of drilling technology, many new types of bha such as steering motor assembly, dropping assembly with eccentric bend sub, dropping assembly with flexible connection are developed based on common building, dropping and holding assemblies. for using these bha, a new mathematical model is put forward for 3d static analysis of these types of bha under small deflection. and its weighted residual solution is given. the mathematical model includes ( 1 ) differential equations ; ( 2 ) boundary conditions at drill bit, stabilizer, bend angle, diameter change, tangential point and borehole wall ; ( 3 ) lateral forces and deflection angles of bit. the software based upon this method runs well
為了更好地應用各種新鉆具,建立了適用於對普通下部鉆具、導向鉆具、帶偏心彎接頭和柔性接頭的下部鉆具進行三維小撓度靜力學分析的數學模型,包括( 1 )微分方程; ( 2 )鉆頭、穩定器、彎角、變截面、切點和井壁的邊界條件; ( 3 )鉆頭的側向力和鉆頭轉角.給出了該模型的加權余量解.用該方法編寫的軟體應用效果良好Using universal property, we can define general ( pre ) cover and ( pre ) envelope, such as gorenstein injective ( projective or flat ) ( pre ) cover and ( pre ) envelope, 5 - torsion free ( pre ) cover etc. in a word, problems on ( pre ) over and ( pre ) envelope have aroused considerable debate in the academic circle, which embodies flexible use of tools of homological algebra in studying categories of rings and modules
而且利用泛性我們又可定義更廣泛意義上的包、蓋問題,例如: gorenstin內射(平坦、投射)包(蓋) , s -無撓預蓋,等等。用這類比內射(平坦、投射)更廣泛意義上的特殊模又能刻畫一些環。總之,包、蓋問題是當今非常活躍的研究課題,體現了同調代數在環模範疇研究中靈活運用。Based on the analysis of the kinetic track of the scallion during planting, basic relationships ' among the characteristic parameters of the transplanter with two flexible metal disks, including the velocity of the transplanter, the rate of transplanting, the spacing between seedlings, the angle of releasing seedlings, the diameter and length of seedlings, have been set up in this paper, and then a mathematic model of optimum design for the transplanter with the final planting angle of seedlings ( y = 90 ) has been formulated and solved with good results. according to the optimum solutions, a new type of transplanter with two flexible metal disks has been developed and the field tests of the transplanter have been conducted
為了實現大蔥機械化移栽,作者分析了國內各種移栽機的結構特點,確定了以撓性圓盤式栽植器為研究對象,在分析撓性圓盤式栽植器的運動軌跡和特徵參數的基礎上,完整地確立了撓性圓盤式移栽機的基本參數:栽植頻率、栽植株距、機組前進速度、輸送帶上秧槽的間距、撓性圓盤半徑、撓性圓盤的轉速、夾苗株數以及傳動比之間的相互關系,並建立了以蔥苗栽植傾角= 90為目標的優化設計數學模型,提出了撓性圓盤式大蔥移栽機的優化設計方法。General rotatory composed design with 5 factors was adopted for studying influence of factors on seedling bury percentage of naked root transplanting, and mathematical models between parameters of transplanting machine and seedling bury percentage were set up, and the influence of mechanism parameters on seedling bury percentage ratio was analyzed
為研究撓性圓盤式移栽機移栽機構各參數對秧苗埋苗率的影響,進行五因素二次通用旋轉組合設計試驗,建立了移栽機參數與秧苗埋苗率間的數學模型,並分析了各參數對秧苗埋苗率的影響效應。Standard test method for determining the in situ modulus of deformation of rock mass using the flexible plate loading method
用撓性板負荷法測定巖石質量現場變形模數的標準試驗方法Parameter analysis, 3d nonlinear finite element program and experimental study are carried out to discuss the prestressing effects in terms of ultimate flexural strength, deflection, cracking moment, the redistribution of internal force, the stress increment of prestressed tendons, and the slip at the interface of prestressed steel - concrete composite continuous beams
本文通過參數分析、 ansys三維有限元非線性分析、模型試驗等研究方法,著重探討了抗彎承載力、撓度變形、開裂彎矩、內力重分佈、預應力筋應力增量、組合界面滑移等方面的預加力效應。The article firstly theoretically analyses the error model of q - flex accelerometer in the conditions of line motion and angle motion according to the structural characteristics of q - flex accelerometer
論文首先根據石英撓性加速度計的結構特點,從理論上分析了石英撓性加速度計線運動和角運動條件下的誤差數學模型。The following important work has been done : ( 1 ) some special problems of rate - bias laser gyro were analysed. the problems include modulation and demodulation of the output and algorithm of the attitude updates ; ( 2 ) the integrated navigation system with the fault tolerance property which equipped with many navigation equipments as sins, gps, dvs, ads, mg, vg is designed, and compared with that of ckf via simulations ; ( 3 ) the theories and methods of system level fault detection apply to federated filtering is investigated ; ( 4 ) the problem about using the fused information of sins based on rate - bias laser gyroscope / dynamical tune gyroscope to realize the component level hard fault interactions detection through a back - propagation neural network is discussed
主要研究工作有:研究了速率偏頻激光捷聯慣導的陀螺測量信號的解調演算法;設計了在速率偏頻激光捷聯慣導、 gps 、多普勒雷達、大氣數據系統、磁航向儀及垂直陀螺配備條件下聯邦濾波組合導航系統,對聯邦濾波器和集中濾波器的性能做了模擬對比分析;研究了適用於聯邦濾波器的系統級故障理論和方法;探討了利用速率偏頻激光捷聯慣導撓性捷聯慣導陀螺的混合測量信息,通過神經網路實現硬故障交互檢測的方法。Presents the new independentmodal - space variable structure control for flexible structures with distributed parameter model, which is decoupled into a number of 2 - dimensional subsystems in terms of coordination transmission where, the variable structure control law is designed within the given boundary of structural uncertainty and disturbance, and concludes from simulation results that the algorithm is not only simple so as to accomplish in real time, but also is very robust
對具有分佈參數模型的撓性結構提出了模態空間變結構控制方案,利用坐標變換把整個系統分為若干個獨立的二維模態子空間.在每個獨立的模態子空間內,在給定參數不確定性范圍和干擾力矩范圍的情況下,設計變結構控制控制器.通過模擬驗證了控制演算法的有效性;控制演算法簡單,易於實時完成,又具有較好的魯棒性Nowadays, the pcc pile have been widely used for soft ground improvement and application of foundation engineering. the behavior of pcc pile, that subjected to lateral load has been studied in this paper. the behavior of the pcc pile has involved moment and horizontal displacement and load of pcc pile. they are studied by in the physical model experimen, field test finite element numerical analysis, and exponential progression solution. in additional, the comparatively computal analysis are carried out among pcc pile, cast - in - situ concrete circular pile, prefabricate concrete square pile, and obtain some signification conclusion
本文主要圍繞現澆混凝土薄壁管樁(以下簡稱pcc樁)這一新型的樁基結構型式的水平承載性狀展開研究,通過室內模型試驗、現場試驗、有限元數值模擬分析試驗及彈性冪級數解析法分析等手段,對pcc樁水平承載的樁身受力性狀,樁身撓曲位移,樁身彎距分佈,樁與樁周土相互作用的地基反力等幾方面進行了初步的探討和研究,最後將pcc樁與目前工程中的兩種常用於承受水平荷載的樁型進行對比計算分析,得到有意義的結論。Holistic rigidity method is applied to analyze the rigidity of the flexible gyro joints. first the model of the flexible gyro joints is established. then the normal elastic coefficients are achieved with formulas and actual parameters, which offer a theory base to get harmonious state
首先對撓性陀螺接頭進行了模型建立,根據撓性接頭的正彈性系數計算公式,通過實際測量得到的接頭幾何參數計算撓性接頭正彈性系數,為陀螺裝配后達到調諧狀態提供了理論依據。分享友人