浮力計算 的英文怎麼說
中文拼音 [fúlìjìsuàn]
浮力計算
英文
buoyancy calculation- 浮 : Ⅰ動詞1 (漂在液體表面) float; drift 2 [方言] (在水裡游) swim Ⅱ形容詞1 (在表面上的) superfici...
- 力 : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
- 計 : Ⅰ動詞1 (計算) count; compute; calculate; number 2 (設想; 打算) plan; plot Ⅱ名詞1 (測量或計算...
- 算 : Ⅰ動詞1 (計算數目) calculate; reckon; compute; figure 2 (計算進去) include; count 3 (謀劃;計...
- 浮力 : [流] buoyancy; buoyant force; buoyance; floatage; rising force; buoyancy force浮力參數 [流] buoya...
- 計算 : 1 (求得未知數) count; compute; calculate; reckon; enumerate 2 (考慮; 籌劃) consideration; pla...
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Abstract : based on the concept of being serviceable at both peacetime andwartime and existing research achievements, the paper puts forward general programme, mechanical model and computational method for the railway bateau bridge across yangtze river, which can meet the navigation requirements, obtain high degree of attack - resistance and be extensively used
文摘:基於平戰結合的思想,立足於現有的成果,提出了能滿足長江通航要求,具備良好的抗打擊性和可以廣泛應用的長江鐵路浮橋總體方案、力學模型和計算方法。In order to resolve the strength problem of 74500dwt bulk carrier on launching way, two aspects of problem are investigated in this report : 1 ) the analysis and calculation of the force act on the hull and the launching way when ship launching ; 2 ) the strength analysis and calculation of bottom structure in forward area during ship launching
為了解決74500噸散貨船下水時船體結構的強度問題,本文主要對兩方面的內容進行了研究: 1 )船舶縱向下水時的受力分析和滑道反力計算: 2 )艉浮時艏部區域底部結構強度分析計算。A preliminary calculating analysis of the wave forces on a submerged floating tunnel by applying the morison equation
方程計算分析懸浮隧道所受波浪力初探At present, more and more large tonnage ships are built with the development of ship industry, the force between hull and shipway increased, the damage of ship structure was also reported. but the existed method is not efficiently for calculating the distribution of force acted on forward during stern floating which is the moment of truth during ship launching, so it is important to calculate ship launching precisely and take measure to preclude such accident
目前隨著船舶工業的發展,建造船舶噸位越來越大,船體所受滑道反力隨之增大,在實際生產過程中已有船體局部結構不同程度損壞的報道,而現有的下水計算方法在下水的最危險時刻艉浮時滑道反力的分佈情況方面的計算顯得不夠準確,如何準確進行計算並採取相應的措施來防止這類問題發生顯得十分重要。The calculated drafts covers the whole possible ship draft in the large amplitude motion ; secondly, the research creates and solves the ship large amplitude motion equations. on the one hand, the actual calculation takes into account the coupling between the different motion modes, on the other hand, in the process of calculation of the ship hydrodynamic coefficient, it considers the influence of the nonlinear factor. the hydrodynamic coefficient used in the calculation of froude - krylov force, diffraction force and radiation force changes instantaneously following the draft, and the hydrostatic buoyancy is computed very accurately for the instantaneous immerse hull
本文的研究分為二個部分:首先利用frank源匯法計算水動力系數,計算包括不同吃水時的附加質量和阻尼系數,吃水范圍涵蓋了船舶大幅度運動時所有可能的吃水;然後建立和求解船舶大幅度運動方程,在實際計算時一方面考慮了運動模態之間的耦合,另一方面在計算水動力時,考慮了非線性因素的影響。 froude - krylov力、輻射力、繞射力中的水動力系數隨吃水瞬時變化,靜浮力的計算精確到船體瞬時濕表面積,最後用四階龍格?庫塔方法在時域內求解船舶運動方程,並進行了載荷計算。3. it studied the radiation problem of tlp, and paid attention to the computation of added mass and added damping about tlp which cylinders are set as regular polygon
3 .研究了張力腿平臺的輻射問題,重點研究了浮筒柱正多邊形分佈情況下,總體輻射附加質量和阻尼系數計算問題。Impact forces calculation for mooring chains as mooring floats in collision
系泊浮體受碰撞時系泊鏈的沖擊力計算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 paper, the standard three - dimensional k - two - equation turbulence model which modifies the item of buoyant effect and simple algorithm are adopted, wall functions are used to deal with the boundary condition and a simplified method - box method is used to model the supply air boundary condition
本文數值計算採用經過浮升力項修正的k -兩方程模型和simple演算法,壁面邊界條件採用標準壁面函數,風口邊界條件採用盒子方法。廠房內的氣流運動主要受風口出流動量的制約,因此選擇合理描述入流邊界條件的風口模型對數值模擬至關重要。Calculation results fit experimental data well. at last, in order to further discover the matching between the two systems of small - scale cold storage, phoenics - cfd general software is applied in the study on 3 - d distributions of the airflow and temperature fields in the chamber of the small - scale cold storage. buoyancy model in the simulation are considered and the results are in agreement with the experimental data
最後,為了進一步了解小型冷庫兩個組成系統間的匹配特性,用phoenics數值計算專用軟體對冷庫內三維流場和溫度場分佈特性作了計算,並在計算中考慮浮升力的影響,計算結果與特徵點的實驗結果基本一致。This subject belongs to three - dimensional layout problems with behavioral constraints theoretically and concerns the knowledge of spacecraft design, mechanical engineering, computer science, mathematics, mechanics and system engineering. so it can be ascribed as the frontier fundamental and applied research of cross - discipline subject with np complexity theoretically. in term of engineering practice, this subject has extensive applications, such as layout design of spacecraft module, engineering machinery, submarine and shipping, tank, under - water suspension engineering, platform of marine drilling well, bullet train, multiple spindle box of machine tool, robot
該課題在理論上,屬帶性能約束的三維布局問題,涉及航天器設計、機械工程、計算機、數學、力學和系統工程等學科,為交叉學科前沿課題的基礎理論和應用基礎研究,具有np難度;在實踐上,具有廣泛的工程應用背景,如航天器艙、工程機械、潛艇、船舶、坦克、水下懸浮工程、海上鉆井平臺、高速列車、組合機床多軸箱、機器人等的布局方案設計問題。This paper introduces the simulation method and advanced computer technology combining with ship statics principle into cargo shipment of bulk grain carrier, and develops loading simulation system of the bulk grain carrier. and introduce the principle of system and method of implement particularly. this paper describes the relating high precision calculation algorithms of the stability, trim and strength calculation used by the loading software in detail, focuses on the algorithms of numerical value integral and curve difference and imitate algorithms
另外,本文還引入模擬的方法,採用先進的計算機技術,結合船舶靜力學原理和散裝穀物船舶穩性校核的特殊要求,開發了散裝穀物船舶的裝載模擬系統,並詳細介紹了該系統的原理和實現方法,在計算方法上,採用了高精度的浮態、穩性、和強度的計算方法。Based on the research and model test, the head loss of flap valves is analyzed by both mathematical physics method and the equation of criterion, and the impulsive force and open angle of flap valve are researched. the flap valve approximate - calculation method is the emphases in this paper. the design methods and using effect of air - filled floating flap valve are studied in the paper by combining with engineering example
在總結前人研究的基礎上,對照試驗結果,通過數理解析和準則方程分析了拍門水頭損失,研究了拍門水流沖力的求解和拍門開啟角度的求解,著重研究分析了拍門近似計算方法,分析拍門在水中的運動規律,並結合工程實例,研究探討充氣浮箱式拍門的配重方法及其使用效果,為今後開拓充氣浮箱式拍門的運用領域作些探討研究。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。By magnetic field analysis for the stage, three formulas reached : one is magnetic road magnetic force calculational formula of magnetic levitation system that except flux leakage, the second is magnetic driving force calculational formula for open magnetic road dc linear motor, the third is magnetic flux density calculational formula for dc linear motor. these formulas make reference for design, analysis and control
本文對磁懸浮定位平臺進行了電磁場分析,推導出磁懸浮系統不計漏磁的簡單磁路、磁力計算公式和原理樣機所採用的開磁路直流直線電機推力及磁通密度計算公式,為設計、分析及控制提供參考。4. magnet bearing and levitating technology are seldom used on magnetic force pumps, reducing sliding bearings " radial pressure is attempted, ways of calculating axial direction force are listed and summed in this paper, virtue and shortcoming of axial - magnetization ring and radial - magnetization ring are contrasted. 5
磁力軸承和懸浮技術在磁力泵上的應用鮮有報道,本文嘗試解決臥式磁力泵滑動軸承徑向受力問題,總結磁力泵軸向力計算的方法,比較軸向磁化和徑向磁化磁環排斥力和吸引力的優缺點。3 - d finite element floating mesh method is adopted and relevant programs are compiled. examples are given and the results have proved the method is reasonable and the programs are reliable
採用浮動網格法,編制了鋼筋混凝土面板施工期溫度場和溫度應力計算程序,所給出的算例表明演算法是正確的,程序是可靠的。On the basis of electromagnetic field analysis with ansys7. 1, the result of magnetic force calculation is introduced to the software of msc patran / nastran, and the analysis of statics and dynamics for magnetic levitation stag are effectively carried out through coupling the magnetic force with structure force
在ansys軟體進行電磁場分析的基礎上,將磁力計算結果調入cae軟體mscpatran nastran中,磁力計算與結構力學耦合計算,有效地進行磁懸浮工作臺靜力學分析和動力學分析,合理地評價了磁懸浮移動平臺的性能。Raft vibration - isolate simulation system of this paper can provide the functions as follows : 1. it can calculate the natural frequencies, vibration modes, modular state and dynamic response of the unit according to the given structural parameters of the selected raft vibration - isolating unit, the number of vibration isolators and their installation positions. and also, the design effect of the selected scheme can be displayed vividly
另外,本論文研製的「浮筏隔振裝置減振降噪模擬系統」 ( raftvibration - isolatesimulationsystem , rviss ) ,功能包括: 1 、計算根據使用者輸入的機組結構參數、減振器的選型參數,可分別進行系統固有頻率及振型、系統模態分析及靜力計算、動力響應計算等,並提供計算報告;利用三維計算機技術實時模擬,形象逼真、動態顯示計算效果。Because this design demands more accurate calculation, this process c51 is used in it. and we use floating calculation to improve calculation precision
由於本設計對計算的精度要求比較高,所以採用c51編程,藉助c語言的浮點計算能力提高計算精度。分享友人