load factor method 中文意思是什麼
load factor method
解釋
荷載系數法-
First, the theory of fretting wear and studies on fretting fatigue were introduced and the parametric method was used in the process of creating the model of dovetail joints in ug software. the elastic contact problem is analyzed in finite element method ( fem ) and is used to the parameters " distribution and contact stress of the joint are obtained on the base of ansys code. with the effect factor of load frequency, the prediction method of fretting fatigue life of dovetail joint under low and high / low cycle complex load is proposed
本文介紹了微動損傷的機理和微動疲勞壽命的研究方法；利用ug軟體對燕尾榫聯接結構創建了參數化實體模型；基於ansys軟體平臺求解彈性接觸問題，獲得了榫聯接結構接觸應力及接觸狀態量的分佈；在已有微動疲勞壽命預測模型的基礎上，引入載荷頻率影響因子，對低周、高低周復合載荷作用下的燕尾榫聯接結構進行了微動疲勞壽命的預測，與試驗結果對比表明採用本文提出的方法預測榫聯接結構的微動疲勞壽命是有效的。 -
By analyzing the basic principle of voltage space vector pwm, a method is proposed to choose the zero vectors dynamically according to the power factor angle of the load and the concept of the lag angle of non - switching sectors
在分析了空間矢量pwm基本原理的基礎上，提出了一種根據負荷功率因數角動態分配零矢量的方法，並引入了不開關扇區滯后角的概念。 -
( 2 ) based on the existing theory of lateral load distribution rule, and combined the structure characteristic of pre - stressed lager cantilever composite beam with corrugated steel webs, this thesis proposed the modified rigid beam method. taking this method, it is facilitated to compute the lateral load distribution factor of bearing composite cantilever beam with variable - stiffness under the load in arbitrarily position
（ 2 ）以現有的橫向分佈理論為基礎，結合大懸臂波形鋼腹板組合挑梁的結構特點，提出了修正剛接梁法的計算方法，能夠方便地計算變剛度懸臂組合梁任意點位的橫向分佈系數。 -
Thereafter, the fractal dimension value of cracks distribution was presented as an effective index to appraise the corrosion level. relations between fractal dimension and rebar corrosion ratio, concrete deterioration factor and strength of the member were studied respectively. fractal nn model was also built up to predict the ultimate load bearing capacity of crc members obtained from the field corroded structures, good results are achieved, which could provide an applicable method to evaluate the durability of crc members
揭示出受腐蝕鋼筋混凝土構件在荷載作用下表面裂縫分佈服從統計意義上的分形，並對其進行了分形描述；提出以裂縫分形維數作為受腐蝕程度的有效衡量指標，首次實現了構件受腐蝕程度的定量描述；建立了裂縫分形維數與鋼筋銹蝕率、混凝土劣化系數、構件承載力之間的定量關系，並建立了分形神經網路模型對實際受腐蝕鋼筋混凝土構件進行了極限承載力的預測，取得了較好的預測效果。 -
By analyzing the load factor and unbalance factor of distribution transformer, the method of calculating and selecting the low voltage reactive power compensation capacity and compensation equipments, and the connection mode of capacitors were presented
摘要通過對配電變壓器負載率和不平衡率的分析，提出低壓無功補償裝置補償容量的計算選擇方法和電容器的接線方式。 -
At the beginning of this article, we give the analysis about the principle of external condensation. we find out that the most important factor in the condensation is the temperature of the air in the system. and we point out the factors which can make influence in the external condensation, such as the temperature and the humidity of the environment, the temperature and the pressure of the supplying air, the load of the system, the area of passage of speed control valve, and so on. next, we give the mathematics model of the pneumatic system using the knowledge of aerodynamics and heat transfer theory. and using the finite difference method and the numerical analysis we can get the solutions of the model. we use c program to simulate the model
本文首先對氣動系統外部結露的原理進行了分析，指出了氣動系統內部氣體溫度下降是氣動系統外部結露根本原因，提出了影響氣動外部結露的主要因素，包括環境溫度、環境濕度、供氣壓力、供氣溫度、氣缸負載和調速閥開度等。然後應用氣體動力學、氣體熱力學和傳熱學對氣動系統建立數學模型，用逆步進有限差分法和數值分析演算法對所建模型進行求解，利用c語言編製程序對氣動系統模型進行模擬，給出了氣管及氣缸內氣體的各個時刻的狀態參數。 -
In development of deep foundation engineering, it is necessary introduce information construction method into the deep foundation engineering, for reducing the pit trouble. the information construction method is a kind of moderon construcion management way to make use of system engineering, includes the informationg acquisition back coupling, back analysis, control and decision. the research is for example runyang changjiang river highway bridege, expounds the method how to apply the information construction method into the practice engineering, at the same time, discussing some the factor of influcing the deep foundation stability how to influce the deep foundation ' s stability. form the research, we have some following results : 1. in construction process of super and deep pit, super pore water pressure creation has related to outside load, soil layer conditions, and underground water level
在深基坑工程建設迅速發展的同時，為了減少基坑事故的發生，需要將信息化施工這一理念引進到基坑工程的施工過程中，信息化施工是運用系統工程施工的一種現代化施工管理辦法，包括信息採集（監測） 、反饋、反分析（預測） 、控制與決策等幾方面的內容，本文以在建的潤揚長江大橋北錨錠深基坑工程為例，系統的闡述了這一施工理念在實際工程的具體應用過程，並通過這一應用過程探討影響基坑工程安全穩定的相關因素對基坑的影響程度。 -
The rules obtained from the background modal analysis method based on the quasi - steady assumption in frequency - domain are similar to those obtained by the analysis method in time - domain, and the influence of high modes can be considered. finally, the dissertation suggests that for engineering design, it is better to use equivalent wind load factor defined the ratio of wind - induced total displacement to static displacement for computing the equivalent static wind load of long - span grid roof structures, and the equivalent wind load factor of the roof of taizhou stadium is calculated
最後通過對大跨網架屋蓋結構的風振系數的研究，提出了在實際工程設計中，採用位移風振系數來計算大跨屋蓋的等效靜力風荷載既正確又方便使用，並且給出了臺州體育中心看臺屋蓋進行分塊統計后的位移風振系數，以供設計參考。 -
The math model built into the distribution reliability management system of daqing oil field power system is clear, and the relation among each factor is explicit. this dissertation resolves the questions, which the calculation speediness and the node capability, and breaks through the number limitation of load - points and lines, by making use of special model method and new - found calculation thought. so it is an object - oriented computer management system, and is also a signification attempt in research of distribution system reliability assessment
大慶油田電網可靠性管理系統所建立的數學模型清晰，各相關因素關系清楚，獨特的建模方法和全新的計算思路，突破了負荷節點數和線路條數的限制，解決了節點容量和運算速度等技術難題，是一個面向工程應用的計算機管理系統，是配電系統可靠性評估領域一個有意義的嘗試。 -
Being basis on the 14 regional grid planning texts of historical data of hunan province, initially determining the factors that affecting power grid construction ; to reflect the distribution of information to determine the scale of construction leading indicators to assess the scale, with its own network of intelligence presented to the region to assess the scale of the distribution network - building indicators system ; establishes assessment models of evaluating 110kv distribution network building scale integrated ; considering the main factor that influencing the construction scale of the distribution network, the improvement method of 10kv distribution networks capacity - load ratio is proposed ; the combination of high voltage distribution network planning optimization technology results presented evaluation pressure distribution network building scale integrated assessment methods
課題以湖南省14地區電網已有規劃文本歷史數據為基礎，初步確定各種影響電網建設的因素;以反映配電網建設規模的主導信息來確定規模評估指標，提出了符合自己網情的地區配電網建設規模的評估指標體系;建立了評價110kv配電網建設規模的綜合評估模型;通過研究各影響因素與負荷發展儲備系數參數的關系提出了確定10kv變電容載比的方法;結合高壓配電網規劃的優化技術成果，提出了評價中壓配電網建設規模的綜合評估方法。 -
The inelastic demand spectra are established according to the new chinese seismic design code for buildings by means of force reduction factor r and ductility factor u, thus, a simple and practical method is established for seismic damage assessment in combination with capacity spectrum method ; the structure ' s push - over curve of second earthquake is gained by cutting the curve of quasi - test reversal load pattern method, thus, the structure ' s cumulate damage level can be computed by the capacity spectrum method too ; the results of an example are compared with the facts, and the validity and simplicity of this method is approved
利用r -關系基於抗震規范彈性反應譜建立了能力譜方法中的需求譜，並將該法和能力譜方法結合，建立了一種簡單實用的結構損傷評估方法；對擬靜力循環往復加載曲線的截取，得到了第二次地震作用的push - over曲線，從而能夠繼續使用能力譜方法得到結構物的累積損傷值；通過算例闡述了該法的計算步驟，所得結果符合基本規律，且具有概念明確、簡單實用的優點。 -
This paper, regarding the asphalt pavement in the zhoukou region as the study object, according to the prevalent norms ( specifications for design of highway asphalt pavement ), with the beginning of the pavement performance and the transportation investigation, totally and systematically analyzes the traffic parameters and the destroying reason of pavement at the early stage in the point of fatigue property and limit strength, gives the concepts and methods of the growth rate of equivalent axle load action time, seasonal modification factor and overload factor, proposes the method of axle load conversion on the condition of heavy loading. on this basis, it proposes the design method adapting to asphalt pavement construction, explains the steps of thickness computation of construction with the combination of engineering example, finally verifies thedesign method in the paper by test road. theory and practice both prove that the reasonability of pavement structure style and the reliability of design method in the paper can adapt to the present heavy loading and overloading traffic conditions, have highly theoretical and practical value
本文以周口地區瀝青路面為研究對象，以現行《公路瀝青路面設計規范》為依據，從路面使用性能和交通特徵的調查入手，從疲勞特性和極限強度出發分析了路面早期破損的原因，全面系統地進行了交通參數的分析，提出了當量軸次增長率、季節修正系數和超載系數的概念和方法，並提出了重載交通的軸載換算方法。在此基礎上，針對超載、重載交通從結構組合設計、結構厚度計算（包括疲勞強度標準和極限強度標準）等方面提出了適宜的瀝青路面結構設計方法，並結合工程實測，說明了結構層厚度計算的具體步驟，最後通過試驗路驗證本文提出的設計方法。理論與實踐均表明，本文提出的路面結構型式合理、設計方法可靠，能適應目前重載、超載交通的狀況，具有較高理論與實用價值。 -
The results show that : ( 1 ) it is feasible to analyse and assess environment effect in cement industry by factor analysis method ; ( 2 ) according to the analysis result of the main comprehensive environment - load - effect indexes as production technique, resource wastage, environment acidification and people ' s health, the pre - calcining kiln process has predominance and the wet kiln and the shaft kiln process is obviously disadvantaged
結果表明： （ 1 ）用因子分析方法對水泥企業進行環境影響的分析評價是可行的； （ 2 ）從生產技術、資源消耗、環境酸化和人體健康等主要反映環境負荷影響的綜合指數方面的分析表明，新型干法工藝具有顯著的優勢，而濕法窯和立窯工藝則明顯處于不利的地位。 -
Second, engine ' s partial velocity characteristics model and universal characteristics model are built the throttle opening is considered as an essential factor to build the model for reflecting the actual working performance of engine. the situation of the throttle opening change is studied, and a simulation method is given to use torque curved surface and vehicle dynamics equation on base of differential approach method. engine test software is developed for the engine no - load test, variable throttle opening test and throttle step change test
其次，建立了發動機的部分速度特性模型和萬有特性模型；為了更好的反映發動機的實際工作特性，將油門開度作為一個重要參數參與建模，並對發動機變油門的情況進行了研究；結合轉矩曲面和整車動力學方程，採用微區間逼近法確定了發動機變油門過程模擬方法；開發了發動機試驗測控軟體，利用該軟體進行了發動機空載響應試驗、發動機不同油門開度試驗和油門階躍變化試驗，並對實際試驗數據和數學模型計算數據進行對比；在vc + +平臺上開發了發動機特性模擬模塊，在系統中用軟體實現了變油門控制發動機特性的功能。 -
Based on the theoretical model, influence of slenderness ratio, the changing frp ratio, strength of the frp composites and the concrete as well as load eccentricity ratio on the bearing capacity of the members after sustained load is discussed. finally, simplified calculating method of the reduction factor for the bearing capacity of circular frp - confined concrete beam - columns with long - term effects considered is suggested. the achievements in this paper may be referred for practical engineering
在系統分析長細比、截面含frp率、 frp抗拉強度、混凝土強度、加荷齡期和荷載偏心率等因素對長期荷載作用下frp約束混凝土構件承載力的影響規律的基礎上，給出考慮長期荷載作用影響時frp約束混凝土構件承載力折減系數的簡化計算公式，可為工程實踐提供參考。 -
The theoretical analysis of large cryocondensation pump for nbi was mainly concerned. this paper emphasized on analyzing and calculating the heat load of cryocondensation pump, simulating thermal transmission coefficient and molecule transmission coefficient of radiation baffle according to monte carlo method, analyzing the process on cryo - surface and the factor of affecting pumping speed and hydrogen layer thickness of influencing cryo - parameter, etc. finally by verifying the pumping speed on large cryocondensation pump for neutral beam injection system, the pumping speed of 4. 0x105l / s ( for h2 ) was proven to be reasonable
本文首先介紹了中性束注入系統的國內外發展狀況，闡述了中科院等離子體所ht - 7中性束注入系統的構成，主要對用於中性束注入系統的大型低溫冷凝泵的特性進行了理論分析；對冷凝抽氣面的熱負載進行了分析計算；用蒙特卡羅法對輻射擋板的分子傳輸幾率與熱傳輸幾率進行了模擬計算；研究了低溫表面的處理方法對抽速的影響以及氫層厚度對各低溫參數的影響；最後對用於中性束注入系統的大型低溫冷凝泵的抽速進行了驗證，得出的結論是：選取40萬升秒的抽速是合理的。 -
The load environment of bridges is a very important factor for bridge maintenance and condition assessments 。 many researchers have paid great attentions to the moving loads on the bridge. the bridge - vehicle system is modeled by two axles vehicle model and simple - supported beam ( include prestressing force or not ). using wavelet - galerkin method for solving equation of motions, a new moving force identification method is developed in this thesis based on finite element method
在基於車橋系統移動載荷識別的有限元法的基礎上，引入了微分方程求解的小波伽遼金法，將小波分析的方法應用於移動載荷識別當中，建立了一種基於有限元和小波伽遼金法的一種新的車橋系統移動載荷識別方法。 -
The resistance attenuation of each element is considered in the design process, and the statistical parameters of the elements are assumed to be the same as the investigated results of china. in the process of the calculating of the element reliability attenuation in expected service life, several load combination and different load ratio of dead load to live load are considered. in order to ensure that structure reliability in expected service life satisfies the requirement of today ’ s code, a method of choosing the initial reliability index of structure basing on the length of expected service life and the structure resistance attenuation is proposed and the corresponding durability reduction factor is chosen by an optimum algorithm
根據我國現行建築結構可靠度設計原理，考慮耐久性退化影響因素，設計了抗力統計參數與我國調查結果一致的五種代表性鋼筋混凝土構件，考慮多種荷載效應組合以及不同荷載效應比，研究了不同使用期內代表性構件的可靠度變化規律;為保證預期使用期內結構可靠度水平仍可滿足現行規范要求，提出了根據預期使用期和抗力衰減幅度確定結構設計可靠度指標的方法，並通過優化的方法確定了預期使用期內的耐久性折減系數，給出了預期使用期結構可靠度設計的實用設計方法。 -
Using the model parameter from the dynamical experiment, the integrated parameters can be disassembled, thus the structure ' s frequency and the influencing coefficient of their oscillation mode are solved. it ' s tested from the model experiments and fem that the model given by the article has the virtue of explicit concept and convenient method and high accuracy, and it can give reference to evaluate the load capacity of bridge. in the end, in order to assess the existing bridge ' s seismic resistance performance, force reduction factor with ductility is recommended to reflect the seismic force of the structure during the elastic and plastic periods
另一方面，由動力相似理論建立了室內模型，並進行室內動力試驗，藉助量測到的模態參數分解出綜合參數，可以反推結構頻率及振型參與系數。試驗結果、有限元計算值表明，本文建立的模型概念明確、計算方法簡便、精度較高，可以為動測法評定橋梁結構承載力提供參考。最後，從延性的角度給出強度折減系數來考慮結構進入彈塑性階段的地震力，從而對橋梁的抗震性能做出評價。
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