buoyancy method 中文意思是什麼
buoyancy method
解釋
浮力法-
Test method for density of glass by buoyancy
用浮力法測定玻璃密度的試驗方法 -
Analysis of research method on submarine reserve buoyancy
潛艇儲備浮力論證研究方法分析 -
In the study of the lumber carrier, one of the very important problem is the in spot and ultimate station due to flooding which will bring tremendous threat to the ship because of the few holds in order to study the lumber carrier buoyancy, stability and longitudinal strength under the condition of flooding, the paper adopt fundamental ship principle and iterative and accumulative concept on the basis of insumersibility theory to detailedly calculate the flooding speed flooding amount front draft after draft stability and longitudinal strength considering the ship " s sinking and inclination which will change the center of gravity and the loading station both in hold and on deck and the effect of flooding and lumber amount in holdo in the last, the paper introduces an example of the actual ship named " fei yun ling " and makes a contrast between not taking measure and taking measure which draws a reasonable conclusion and comes up to some advice the method avoids the cockamamie calculating while insures enough precision the paper draws a conclusion that not all the lumber carrier will submerge when suffering the damaged flooding if the loading or measure is suitable
為了研究運木船舶在破艙狀態下的浮性、穩性和強度，本文在抗沉性理論的基礎上，運用船舶基本原理，採用了迭代和累計的思想，將船舶的進水過程劃分為很多次進水的積累，詳細計算了運木船在破艙進水的過程中，考慮到各種破艙參數、船舶本身的下沉、艙室內木材、甲板貨的裝載情況和在進水過程中船舶本身的傾斜對進水重心的影響，以及艙室內的進水量和木材對破口處進水速度的影響，船舶總的進水速度、進水量、首尾吃水、穩性的實時狀態和最終船舶的總縱強度，給出了計算實例，並進行了在採取用泵抽水前後浮態參數的對比，得出了該船舶在艙室內的貨物積載量達到某個數值時可以保證船舶在破艙進水時不會沉沒，或者在當開口小於某數值時，採取適當的措施后，可以使船舶避免沉沒。 -
Therefore, the safety of bulk carrier is widely concerned ; the theory of insubmersibility is followed by the introductions of domestic and international regulations, solutions, rules and requirements on the floodability ; introduced are the conditions of hold in flooded condition, and provided are the calculation methodology of the stability and buoyancy when flooding. the concept of cargo permeability is concretely defined, and the calculation methods of the amount of flooding waters are executed ; the application of the influence numbers simplify the calculation of the still water bending moment and shearing force in flooded conditions. a new method to calculate the maximum still water bending moment and shearing force is developed by means of the influence numbers ; the simulation system provides a means of evaluation and forecast on ship ' s danger extent after ship is damaged
在抗沉性公式的推導過程中採用一些假設，並分析了這些假設對結果的影響；然後介紹了船舶強度的概念和計算方法，鑒于現有的剪力彎矩計算方法工作量大、效率不高的缺點，引用影響數計算船舶進水后的剪力和彎矩；最後根據船舶抗沉性理論對散貨船破艙進水進行模擬，在模擬中根據船舶破艙的實際危險情況，採用直觀的圖形輸入的辦法，判斷船舶的危險程度並計算船舶到達危險狀態的時間以助於船長做出正確快速的決策。 -
In the last part, an experiential formula for nondimensional thermal stratification height is obtained, which includes inlet temperature t, inlet velocity v, heat transfer of the wall body q and the distance of heat source l. in order to obtain a more realistic result, the ? model is used to simulate the airflow and the buoyancy item is treated by boussinesq hypothesis. the paper investigates the flow field of the displacement ventilation in an office by a numerical method
兩方程湍流模型為基礎的壁面函數處理方法，對熱浮升力項採用了boussinesq假設，得到了收斂的溫度場、速度場分佈。在此基礎上，給出了熱力分層高度的計算方法，並分析了送風溫度、送風速度、圍護結構傳熱和熱源分佈等因素對熱力分層高度的影響。 -
In this article, simulations of air distribution in the vav air - conditioned office are carried out in the cases of different air - supplying diffusers including slot diffuser, sqaure grille, bar grille and square diffuser to supply air, the standard three - dimensional k - ? two - equation turbulence model with correctional item of buoyancy effect and simple algorithm are adopted, and wall function method is used to handle boundary conditions
本文採用經過浮升力項修正的-兩方程模型和simple演算法，應用壁面函數法處理邊界條件，對利用包括條縫風口、方型百葉風口、長條型百葉風口和方型散流器不同型式送風口送風的變風量空調房間內的氣流組織進行了模擬。 -
From the measured mass, the volume can be determined with a knowledge of water density and corrections for air buoyancy and thermal expansion of the vessel. the volumetric method requires a standard ( calibrated ) volumetric measure
重量分析測定法測定一個測試量器所載或所出的水的質量。從量得的質量，加上水的密度，空氣浮力及容器的熱力膨脹修正，便可測定容量。 -
With the analytic method, the expressions for the precise calculation of buoyancy and its center of launching jackets are deduced and given, with which the calculation and simulation for launching jackets become more precise
分析了導管架下水運動過程中桿元的各種狀態，用解析的方法推導出導管架下水運動過程中的浮力和浮心的精確計算公式，提高了導管架下水參數計算及其模擬的精度。 -
Testing of carbonaceous materials - determination of bulk density by buoyancy method and the open porosity by impregnation with water - solid materials
炭素材料的試驗.用浮力法測定鬆散密度並用水浸漬法測 -
Methods of sampling and test for carbonaceous materials used in aluminium manufacture - electrode pitch - determination of apparent density buoyancy method
制鋁工業用炭素材料取樣與試驗方法.第1部分:電極硬柏油脂.第7節:表觀密度測定 -
Determination of solid state density - part 3 : gas buoyancy method
固體密度的測定:第3部分:氣體浮力法 -
Abstract : a buoyancy method of measure diamond fi lms density was reported. feature of the method is quick, convenient accuracy and practical
文摘:本文報道了一種測量金剛石膜密度的浮力法。這種方法的特點是快速、方便、準確和實用。 -
Abstract : hybrid finite analytic method ( hfam ) and staggeredgrid are applied to calculate the line buoyant jets in cross flows. the phenomenon and development of end - vortex are simulated successfully and the influences of diffuser length and buoyancy on turbulent buoyant jets are analyzed
文摘:本文利用混合有限分析法及交錯網格，對橫流中有限長線源型浮力射流進行數值計算，成功模擬了端渦現象及其發展過程，並分析了擴散器長度及浮力對湍浮力射流的影響。 -
This paper applicates the mathematical programming and presents the model of containership optimization, and develops computer procedure of containership prestowage. it discusses the principle and implementation method of the optimize model, including following : the process of containership stowage ; introducing of the blocks ; a strategic planning process and a tactical planning process of containership prestowage ; computing principle and method of buoyancy, stability and strengh, besides checking principle of them
本文引入數學規劃的方法，建立了集裝箱船預配的優化數學模型，開發了集裝箱船預配計算程序。文章詳細介紹了該優化模型的原理和實現方法，主要內容包括：集裝箱船的配載過程，裝載單元塊的提出和劃分，集裝箱船戰略配載和戰術配載，船舶性能計算與校核。
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