板格強度 的英文怎麼說
中文拼音 [bǎngéqiángdù]
板格強度
英文
panel strength-
The research object of this thesis is a chip - array that is fixed on one of printed circuit boards ( pcb ), which are located in a forced air field ( forced convection ) in an electronic case ; and from the essential equations of airflow we can deduce the mathematical model of the turbulent flow ; then we can establish the finite element algorithm and apply the fe software to work out the equations of turbulent flow, finally we can use the software to display and analyse the field of flow and temperature
本文以處于強迫空氣對流流場中的某pcb板及其板上的電子元件陣列作為研究對象,推導了紊流流場的數學模型,並建立了相應的有限元求解格式,應用有限元法分析軟體對該系統的紊流流場和溫度場進行了模擬分析:解算出pcb板上各電子元件的溫度分佈;並提出了用於求解系統風道特性曲線的cfd方法。The ship ' s hull is a thin - walled box girder structure composed of stiffened panels. the overall failure of a ship hull girder is normally governed by buckling and plastic collapse of the deck, bottom, or sometimes the side shell stiffened panels. therefore, the analysis of buckling and ultimate strength of ship panels in deck, boltom, and side shells is very important and necessary for the safety assessment of ship structure. in stiffened panels, local buckling and collapse of plating between stiffeners is a basic failure mode, and thus it would also very important to evaluate the buckling and ultimate strength interaction of plate elements under combined loads
船體梁的總體失效通常取決于甲板、船底板,有時候是舷側加筋板的屈曲和塑性破壞。因此,對于衡量船體結構的安全性而言,對甲板、底板、舷側板進行屈曲和極限強度分析是十分重要且必須的。對于加筋板而言,加強筋間的板格之局部屈曲和失效是最基本的失效模式。Check whether the insulation resistance and the dielectric strength of the electric devices attached to the panel and equipment body are sufficient
譯:檢查一下控電板和設備體上的那些電器設備,看看他們的絕緣電阻和絕緣強度是否合格。This paper probes into some measures for the safety in production from three aspects of doing well the ceiling management of the mining face with complex geological structure, controlling strictly the gas density and spark origin in the mining face, and strengthening the safety training
從做好地質構造復雜工作面的頂板管理、嚴格控制井下工作面瓦斯濃度和引爆火源、加強安全培訓工作3個方面探討了安全生產的措施。Material production recipes bittern mgcl from territories green roast bolivia glass cloth face paper other additives : sawdust product specifications : 2400 x 1200 x 8mm 9mm 10mm 12mm 2440 x 1200 x 8mm 9mm 10mm 12mm product features : bolivia has a magnesium plates withstand high temperatures, fire, acoustic, vibration, pest control, corrosion, non - toxic tasteless clean, direct, painting, directly onto face, available gas nails, direct, tiles, surface better color nature, high intensity, resistance bending a resilience and can be made, may sawn, may stick, decoration convenience
生產玻鎂板材料配方鹵水mgcl苦土青燒玻璃布面紙其他添加劑:木屑或珍珠巖產品規格: 240012008mm 9mm 10mm 12mm 244012008mm 9mm 10mm 12mm產品特點:玻鎂板具有耐高溫阻燃吸聲防震防蟲防腐無毒無味無污染可直接上油漆直接貼面,可用氣釘直接上瓷磚,表面有較好的著色性,強度高耐彎曲有韌性可釘可鋸可粘,裝修方便。According to the fea model of 110, 000dwt oil tank, the distribution of the stresses of the model in more than ten kinds of load cases is calculated. the structural strength of the ship is assessed. the buckling assessment of the main ship plating such as the deck, bottom, side shell, inner shell, longitudinal and transversal bulkhead is undertaken
針對各種規定的計算載荷工況,對該船船體結構進行了強度校核。並對其主要的船體板如甲板、底板、舷側、內殼和縱橫向艙壁板等板格進行了平板屈曲校核。We exercise strict control over raw material purchasing and production process, so that the panels couple the toughness and hardness, which make future operation such as cutting, bending, pressing, drilling, fixing and edge shaping become easy
本公司嚴格控制原材料采購及生產工藝過程板面強度極高,剛韌結合,可隨意切割,分條,彎弧,衡壓鉆孔,連接固定及邊部壓縮成型。3excellent processing performance. we exercise strict control over raw material purchasing and production process, so that the panels couple the toughness and hardness which make future operations such as cutting, bending pressing drilling, fixing and edged shaping become easy
本公司嚴格控制原材料采購及生產工藝過程,板面強度極高,剛韌結合,可隨意切割,分條,彎弧,衡壓,鉆孔,連接固定及邊部壓縮成型。3. the effective width of damaged attached plates adopt the effective width of damaged plates in ultimate strength computation of damaged stiffened panels
在受損加筋板極限強度計算中,對有損傷的帶板有效寬度取受損板格的有效寬度進行計算。The modified perry - robertson equation is applied to calculate ultimate compressive strength of damaged stiffened panels founded on so - called beam - column method, and the width of effective plate adopts above reduced effective width of a damaged plate
在進行受損加筋板格極限強度計算時,按樑柱法採用修正的perry - robertson方程進行計算,其中有效帶板的寬度取板格折減后的有效寬度。The buckling of a plate mostly occurs in elastic regime with high strength steel adopted widely, and the plate reaches ultimate strength due to losing capacity when equivalent stress where maximal in - plane compressive stress appears arrives at yield in post - buckling phase
隨著高強度鋼的廣泛應用,板格屈曲大部分發生在彈性范圍內,在後屈曲階段當板格最大面內壓縮應力處的等效應力達到屈服極限時,板格迅速卸載,此時板格達到極限強度。The aims of this thesis are buckling and ultimate strength. its main content is as follows : emphasizes the significance and purpose of the research in buckling and ultimate strength, and reviewing the status in this field, and puts forward the research task ; analyzes and discusses the design formulations for the buckling strength of the ship plating, in which the influence of residual stresses, lateral pressure, cut - outs and rotational restrains is taken into account
本文以船體板的屈曲和極限強度為研究目標,主要內容有: ?指出研究船體板屈曲和極限強度的意義和目的,簡要回顧了國內外的研究現狀。並提出本文的研究內容; ?考慮殘余應力、側向壓應力、開孔和扭轉約束對于板格的屈曲強度的影響,討論了各個因素影響下的板格的屈曲強度計算公式。Our product has complete sprcifications. it is special designed for opening every models of hardened glass and exact iron plate. it disposes electrical tools at 1400 / rpm speed. it is solid and can endure chafe. in high - precision, it is the first choice for high - intensity project installations
本產品規格齊全,專開各種型號的硬質玻璃板孔及鐵板精密洗孔等,堅韌硬耐磨,高精度,作業中配置中低速1400轉/分電動工具,同時注水開孔迅速,是高強度安裝工程的首選產品Fireproof board of magnesium oxychloride has been attracted much attention and become the main part in the fields of inorganic building boards because of its attractive properties such as good fireproof property, mechanical strength, sound insulation, shake resistance, heat preservation and so on. but it also has its own defects of dehylogenation, deformation and poor waterproof, which limit its use and decoration
氯氧鎂無機防火板以其輕質、高強、粘接性、韌性、隔音、抗震、保溫、隔熱、防火、防潮、防腐蝕、耐酸堿、防蛀、環保性能好、施工安裝方便、施工勞動強度低、快捷、價格低廉等特點,而得到人們的廣泛重視,成為國內目前市面上應用最為廣泛的無機防火板材之一。It is applied to components requiring high corrosion resistance, good weldability and medium strength, such as soldering part for vessel, vehicle and airplane, pressure vessel placing demanding requirement in fire prevention, cooling device, television tower, drilling equipment, transportation equipment, missile component and armor
典型用途:用於需要有高的抗腐蝕性、良好的可焊接性和中等強度的場合,諸如船舶、汽車和飛機板可焊接件;需要嚴格防火的壓力容器、製冷裝置、電視塔、鉆探設備、交通運輸設備、導彈零件、裝甲等。Based on the above algorithm, a preprocessing software system special for computer simulation of sheet metal forming processes has been developed. for giving cad model of tool surfaces, the algorithm provided in this paper can fully automatically generate quadrilateral finite element meshes from nc track points of tool surfaces, which include the punch, the blank holder, the blank and the die
對于給定的cad模型,本文通過cam數控編程獲得的nc軌跡,能夠自動生成沖頭、壓邊圈、板料和凹模的全四邊形網格,避免了基於cad模型網格生成演算法通常所需的幾何修復時間,大大提高了cae建模效率,降低了建模勞動強度。An explicit formula of ultimate strength is achieved according as combination of elastic large deflection method and rigid plastic method for perfect plates. 2. the explicit formulae with damage parameters as variable of reduction factors for ultimate strength of damaged plates are achieved by curve fitting based on a mass of numerical computation for parametric imperfection and damage of plates
將板格的各種缺陷和損傷形式參數化,通過大量數值計算擬合出受損板格極限強度折減系數的以損傷參數為變量的顯式表達示,用折減系數對完好板格極限強度進行折減得到受損板格極限強度公式。The discrete optimization of boundary curve and the optimization of polygon clipping are discussed on the basis of the above research, this surface automatic mesh generation have applied to cae software successfully which can create high quality element. the method is steady and reliable. the speeding of the meshing is good
在上述技術研究的基礎上,將曲面自動網格劃分演算法成功應用於板料成形模擬的cae軟體中,該演算法具有自適應能力強,網格生成速度快,穩定可靠等優點。Middle strength ( 1370mpa ) spiral ribs steel wires is a new type of high strength and good ductility and anchoring strength rolled steel, which is the ideal steel for the high effective pre - stressed reinforced concrete hollow slab. the slab with it has lower price than the traditional ones as well better mechanical property
中強( dw1370 )螺旋肋鋼絲是一種強度高、延性好、錨固性能優良的新型材料,是高效預應力空心板的理想的受力鋼筋,以這種鋼筋為配筋的預應力空心板不僅具有較好的力學性能,滿足現代建築市場對預應力空心板的要求,而且其價格比低於傳統的冷加工鋼筋。It is applied to product requiring high corrosion resistance, good weldability and medium strength, such as naval vessel, automobile, airplane, low - temperature equipment, television tower, drilling equipment, transportation equipment, missile component and armor
典型用途:用於需要有高的抗腐蝕性、良好的可焊接性和中等強度的場合,諸如船舶、汽車和飛機板可焊接件;需要嚴格防火的壓力容器、製冷裝置、電視塔、裝探設備、交通運輸設備、導彈零件、裝甲等。分享友人