elastic adj. 1.有彈力[彈性]的。 2.伸縮自如的,靈活的。 3.機變的,輕快的。 an elastic body 彈性體。 elastic braces 松緊吊褲帶。 elastic force 彈力。 an elastic principle 靈活性的原則。 elastic ribbon 松緊帶。 an elastic temperament 開朗的性格。 n. 橡皮線,松緊帶,橡皮圈。 adv. -ally
module n. 1.測量流水等的單位〔1秒100升〕。 2.【建筑】圓柱下部半徑度。 3.【物理學(xué)】模,系數(shù),模數(shù),模量。 4.【無線電】微型組件;組件;模塊。 5.(太空船上各個獨立的)艙。
Considering the randomness of physical parameters ( elastic module and mass density ) of structural materials , the structure dynamic characteristics is analyzed based on probability , and the distribution parameters of dynamic characteristics random variable is derived from the rayleigh s quotient 在此基礎(chǔ)上,構(gòu)造了具有頻率或頻率禁區(qū)可靠性約束的工程結(jié)構(gòu)動力優(yōu)化數(shù)學(xué)模型,并對其中關(guān)切頻率的估定,兩種頻率約束的統(tǒng)一表示等進行了討論。
Abstract : this paper introduces the global stiffness , strength and stability of bracing structure with long span , pointing out that the control of bracing structure ' s deflection and elastic module can make the arch ring fit the line of pressure and arch axis and can guarantee the stability of bridge structure 文摘:本文介紹了大跨度支撐結(jié)構(gòu)的整體剛度、強度和穩(wěn)定性,控制支撐的撓度和彈性變量可使拱圈符合設(shè)計壓力線與拱軸線,保證橋梁結(jié)構(gòu)的穩(wěn)定性。
Considering the randomness of physics parameters of structural material ( mass density and elastic module ) , the problem of the structural dynamic characteristic analysis based on probability is studied . the problems of dynamic response analysis of closed loop control system based on reliability for the intelligent truss structures with random parameters were studied , in which the randomness of physics parameters of structural material and applied loads and control forces are considered 在考慮結(jié)構(gòu)材料的物理參數(shù)(質(zhì)量密度和彈性模量)為隨機變量的情況下,對結(jié)構(gòu)進行了基于概率的動力特性分析;在考慮結(jié)構(gòu)材料的物理參數(shù)、外加荷載和閉環(huán)控制力均為隨機變量的情況下,對結(jié)構(gòu)進行了動力響應(yīng)分析。
To meet the need of settlement calculation with fem when absence of laboratory triaxial test data in common road engineering , methods of determining the five parameters included in tangential elastic module through soil routine tests and the related emendation coefficient are given . at the same time , one approximately substituted formula for tangential poisson ratio is also developed , which is suitable for both sandy soil and cohesive soil . ( 3 ) research on main parameters modification of duncan - chang model based on the improved bp network 對于一般道路工程中不做三軸試驗但須進行沉降有限元計算的情況,給出了依據(jù)土體常規(guī)試驗的切線彈性模量確定方法和相關(guān)修正系數(shù),同時也提出了對砂性土和粘性土均適用的切線泊松比的近似替代式子; ( 3 )基于改進的bp網(wǎng)絡(luò)對鄧肯張模型主要參數(shù)修正研究。
Through studying the working mechanism of the composing , the paper referred the bearing ' s analyzing model and designing flow . through shearing test of high damping rubber , the paper analyzes the influence of shearing shape , shearing strain range and inspiriting frequence on the characteristic parameters ( dynamic shear elastic module , dissipation engineering module , wasted gene ) . according to the rule of equivalent energy , the paper gets the hysteretic curve of hdr ' s equivalent bilinear model and parameters ' calculating formula 本論文通過對這種分離式減震支座各組成部分工作機理的研究,提出了該分離式減震支座整體的計算分析方法和設(shè)計流程;通過高阻尼橡膠剪切試驗,分析了高阻尼橡膠剪切面形狀、剪應(yīng)變幅值、激勵頻率和試件高度對特征參數(shù)(動態(tài)剪切彈性模量、耗能模量、損耗因子)的影響。
Taking the contact stress , bend stress stiffness and temperature stress as the condition , taking the weight of the kiln tyre as optimization aim function , the redia and the width of the tyre are optimized general optimize methods just consider the affecting of the parameters to aim function , but in fact , structural parameters ( such as structure dimension , interval and so on ) , physics and dynamics ( damp factor , conduct factor , friction factor material ' s elastic module strength limits and so on ) , which would be changed after used . the difference are called discrepancy robust design ' s basic concept is : all design parameters " discrepancy will affect the aim funct ion and arouse the quality target discrepancy 一般的優(yōu)化方法,僅僅考慮了參數(shù)對其目標(biāo)函數(shù)的影響,而實際情況下有些參數(shù)是變化的,產(chǎn)品的結(jié)構(gòu)參數(shù)(如幾何尺寸、間隙等) 、物理和力學(xué)參數(shù)如阻尼系數(shù)、傳導(dǎo)系數(shù)、磨擦系數(shù)、材料的彈性模量和強度極限等的設(shè)計值與制造后和使用中的實際值會有差異,這種差異稱為設(shè)計變量和噪聲因素的變差。
In the paper , not only such factors as reinforcing steel bar , various placing temperature of concrete in case of lift placements , lift thickness , time interval between lifts , the variation of elastic modules of concrete , heat of hydration , the temperature changes of environment but the effect of creep deformation and autogenous volume change on the temperature field and thermal stress field of reinforced concrete face - slab are considered 本論文在分析中,考慮了鋼筋、混凝土分層澆筑、入倉溫度、澆筑層厚、施工間歇、混凝土彈性模量變化、水化熱發(fā)散規(guī)律、外界氣溫等因素的變化及混凝土徐變和自生體積變形等因素對面板溫度場和溫度應(yīng)力的影響。
Viewing solely from their performance , mdf , dsp , rpc all enjoy a high compressive strength . their flexural strength , fracture toughness and elastic module have broken the limit of traditional cement based materials . all these materials have acquired the features of high toughness material 從材料性能審視,無宏觀缺陷水泥基材料、均布超細顆粒致密體系、活性粉末混凝土等的抗壓強度都非常之高,其抗拉強度、斷裂韌性和彈性模量也突破了傳統(tǒng)水泥基材料的限度,這些材料具備了高強韌性材料的特征。
And different methods will end with different thickness of overlay . and with reference to the actual conditions of shannxi , using ga to backcalculate the present elastic module , then using elastic layer system to calculate the thickness of overlays , is thought to be the most suitable design procedure 通過分析對比,本文認為,比較理想的補強設(shè)計方法是通過遺傳算法對舊路面各結(jié)構(gòu)層模量進行反演,并通過多層彈性(或粘彈性)層狀體系方法對加鋪層厚度進行設(shè)計。
Theoretical research based on the quasi - static test such as theoretical analysis in nonlinear finite element method , programs to shape function of isoparametric element of hexahedron with eight nodes and to stiff matrix of elements , application of resilience model in degeneration equation of elastic module of concrete goes along 在試驗基礎(chǔ)上進行了理論研究,用非線性有限元方法分析框架,編寫了六面體八節(jié)點等參元形函數(shù)、單元剛度矩陣等部分程序,將恢復(fù)力模型應(yīng)用到混凝土彈性模量退化方程中。