thickness of the shell 中文意思是什麼
thickness of the shell
解釋
殼厚度-
With the fea software ansys and shell element which has high - precision, this dissertation optimize the size and thickness of skeleton section and seek steel pipe which still have strength and stiffness surplus under static state working condition : sinkage of 240mm of rear wheel. it ' s fully loaded in the state of static bending and torsion. after that, amelioration is achieved for even strength design
本課題運用ansys有限元分析軟體，並且使用精度較高的shell殼單元作為建模單元，在靜態條件下，通過對左右後輪下沉240mm的彎扭聯合工況的模擬分析，尋找出骨架中存在強度和剛度富裕的構件，使之達到輕量化改進的目的。 -
On the premise of a given set of material parameter, structural boundary shape and condition, design variables - thickness of plate and shell, is designed to minimize the structural weight subjected to the constraint conditions. 1. for the problem with size and stress constraints, full stress design method is used to solve the sectional optimization of plate and shell structures
在給定了板殼的材料常數、板殼結構的邊界形狀和邊界條件的前提下，確定表徵板殼厚度的設計變量，在滿足約束條件下實現結構重量最小： 1 .對于尺寸和應力約束的問題，使用滿應力方法求解。 -
Hollow ferrites particles are the alternative to conventional solid ferrites particles, which have lower density, larger specific surface area and stability. moreover, it is expected electromagnetic wave can be reflected and absorbed again and again in the cavum of hollow particles which become its black hole. in addition, their electromagnetic parameters can be adjusted in a certain range by changing the thickness of the shell and the diameter of hollow microspheres, and the ability of absorbing microwave can be expected to improve
空心結構的鐵氧體是對傳統實心鐵氧體的改造，不僅密度小，還具有特殊的電、磁功能，有可能使電磁波在其空腔中反復振蕩吸收，成為電磁波的「黑洞」 ，從而增加材料的吸波能力，同時可通過調節核殼粒子的內外徑來調控電磁參數。 -
The online measurement of mold heat flux can not be replaced by online temperature measurement, the later can respond the uniformity of heat transfer and thickness of solidified shell mote accurately and directly, and online temperature and heat flux measurement of mold can be used to foresee the mold conditions such as fix and scaling of mold
溫度的在線檢測不能代替熱流的在線檢測，後者可更準確和直接地反映結晶器傳熱和坯殼厚度的均勻性；同時在線檢測結晶器的溫度和熱流有可能對結晶器的設備狀態（如結晶器的安裝狀況和水垢狀況）實現在線預測。 -
In the end of this thesis, basis on the structure dimension of a specifically submarine, some solutions for strengthening structure are discussed, such as increasing the thickness of shell, reducing the spacing of frames, increasing the bending inertial moments of frame and setting the intermediate stiffer, when the extreme diving depth becomes 450m or 600m. comparing these structure weights, the excellent solution is the lightest structure
本文最後以某核潛艇指揮艙的結構形式作為計算實例，對下潛深度分別增加到450米和600米的情況，選擇增加殼板厚度、縮小肋骨間距、增加肋骨尺寸以及加設中間支骨等加強方案，經分析確定其中結構重量最輕的方案為最佳設計方案。 -
According to the special shape and operate requirements of the torpedo, the structure and moulding process of the torpedo shell are established, in which the body and overlay block with grooves are moulded by fiber winding, and close moulding respectively with the adhesive by limited stop compression. in the light of the selection of raw material system, composite system with outstanding performance are defined, based on which the mechanical properties are tested., with the overall consideration of structural characters and design demands, the main factors which may have effects on the strength and stability ( including stiffness section dimension, stiffeners space, skin thickness and skin lay angle ) is optimized one by one for the structure design parameters on the base of the fem model of skin, stiffness and layover block by fem. as a result, the prototype with 1 : 1 proportion and its structure and lay optimization design are completed. the moulding technology for polyurethane foam moulding the stiffened shell is obtai ned in terms of the design, manufacture moulding, experimental mould and tooling
依據在研產品特殊的外型結構和使用要求，確定了該型號水雷復合材料殼體的具體結構形式和復合成型工藝路線，即由纖維纏繞工藝成型主體異形件，閉模成型帶通槽外貼塊，用限位加壓工裝實現粘接的工藝路線；通過對原材料體系的篩選，確定了綜合性能較好的復合材料體系，以此為基礎進行了力學性能測試；運用有限元方法，建立了蒙皮、筋條和外貼塊的分析模型，綜合考慮結構特點和設計要求，對影響結構強度與穩定性的主要因素（包括筋截面尺寸、筋間距、蒙皮厚度、蒙皮鋪層角度）分別進行了結構設計參數的優選，最終完成了復合材料異形耐外壓殼體1 : 1樣件和縮比實驗件結構及鋪層優化設計；完成了聚氨酯泡沫胎成型內置加筋殼體的成型工藝技術研究；對縮比件進行外壓性能測試，並給出了應力、應變測試結果。 -
Since the fender is shell like component, the dimension of the plane is much larger than the thickness
其次，由於該產品是薄壁件，平面上的尺寸比厚度大得多，可假設為無限大的平板。 -
Testing results are analyzed, then the boundary condition ( the heat transfer coefficient of and the water density ) for computer simulation is acquired. through simulation in computer using the all - purpose computer simulation software secondary cooling in slab continuous casting and test results, the influence of the factor such as casting speed, casting temperature, shell thickness and secondary cooling system are analyzed. the secondary cooling system is evaluated, the reasons of crack are analyzed
應用模擬軟體和實驗數據對寶鋼1930鑄機進行了模擬計算，分析了拉速、配水制度、過熱度對鑄坯溫度場和坯殼厚度的影響；對寶鋼1930鑄機的二冷制度進行了評估，分析了產生裂紋的原因；並對二冷制度進行優化，提出了改進建議。 -
In addition, there will be some asymmetrical condition for shelling ; if the shell speed is different, there will be crusting phenomenon and then damage precision of shell thickness
另外一些覆膜砂還可能出現結殼厚度不均勻的現象，如果結殼速度不同，將出現覆膜砂加熱過程中的「起皮」現象從而破壞了結殼厚度的準確性。 -
Author thinks that the direction of the maximum plastic distortion along a constant radius around the crack tip may be considered as the direction of shear - mode fracture ( named pmax - criterion ) and the load when located shear band prongs the ligament in the front of crack tip is regarded as the limited load of shear - mode fracture. ( 3 ) the fad ( fracture assessment diagram ) of titled crack is proposed based on achievements of mesomechanics about i - ii complex ductile fracture of metal, and the titled crack is classified two kinds : void - mode fracture is assessed by fracture assessment curve, and shear - mode fracture by limited load. ( 4 ) using a fe program based on plantle - ressue theory to calculate some mesomechanical parameters, a flange joint structure of a high pressure vessel ( design pressure 31. 4mpa and the thickness of the hemispherical head is half of that of shell. ) is analyzed to determine whether the structure under operation pressure is safe or not, forecast the mode of potential invalidation and argue for the rationality of design of the structure
試件的整體斷裂為剪切型，但在試件芯部裂尖鈍化區中部出現了韌窩型啟裂並有一定的擴展，說明局部較高的應力三軸度也會使韌窩型機制得以發展，但是不改變試件整體的剪切型斷裂模式；對韌性斷裂的剪切模式的細觀機理做了一定的探討，並且提出了含裂紋構件剪切型斷裂的宏觀判據：認為裂紋前方的集中剪切帶中與裂紋尖端等半徑處最大有效塑性應變出現的方向可以作為裂紋剪切斷裂的方向（可簡稱為_ （ pmax ）準則） ，集中剪切滑移帶貫穿裂紋前方承載韌帶時的載荷可以作為極限載荷；本文運用金屬韌性斷裂細觀力學在一復合型韌性斷裂方面的研究成果，採用失效評定圖的形式，提出了傾斜裂紋的安全性評定方法的基本框架。 -
The article describes the shape of wind load on the radome surface and analyzes the internal force of the radome with nonmomental theory of shell, stresses and stability with theoretic formula, equivalent modulus of elasticity and thickness of a - sandwich - composite structure
摘要針對雷達罩易受風荷載作用發生破壞的情況，本文從截球形雷達罩表面的風荷載分佈形態出發，採用無矩理論對雷達罩內力進行了分析計算，從理論上對模型進行了強度和穩定性分析，並著重闡述了a型復合材料夾芯結構的等效彈性模量和厚度的計算方法。 -
Finally we deduct it from the d - t leakage gamma ray spectra s of iron spheres. from the analysis of gamma - ray spectrum, we find that spectra flux shows certain regularity when thickness of iron shell is increasing. the gamma flux is increasing with the thickness " increasing when thickness is less than 6cm, and it is decreasing when the thickness is more than 6cm
通過分析測量得到的不同厚度的泄漏能譜，發現鐵球厚度對能譜通量變化的影響有一定的規律，當鐵球厚度接近小於6cm時，泄漏通量隨厚度增加呈上升趨勢，當厚度接近大於6cm時，通量隨厚度增加呈下降趨勢。 -
Synergistic effect exists when the shell thickness of the micrometer iron - nano iron core - shell structure composite particles is about 120nm, at which the permeability greatly increases. the real part and the image part of the permeability at 2 ghz obviously greater by 25 % than the corresponding values of the iron microparticles and iron nanoparticles
微米鐵-納米鐵核殼復合粒子在殼層厚度為120nm時，磁導率有極大提高，表現出協同效應；在2ghz處磁導率實部、虛部均高於對應的納米或微米粒子相應值的25以上。 -
As the rise of a spherical shell with uniform thickness is 6052 times of its thickness, upper critical load of the shell subjected to uniformly distributed load was investigated, and the convergent result was still derived
在均布荷載作用下，等厚度球殼的矢高為其厚度的6052倍時，對上臨界荷載的計算仍取得了收斂的數值結果。 -
Abstract : according to the site condition of the bisc, a mathematical model of two - dimensional unsteady solidification and heat transfer was established for the bloom caster in the mold. the mathematical model was solved with a finite difference method to characterize the temperature profiles and thickness of the solidified shell in the mold, the effects of casting speed on thickness of the solidified shell are also studied
文摘:根據包鋼的現場條件，建立了大方坯連鑄機結晶器內二維非穩態凝固傳熱數學模型，採用有限差分法對數學模型求解，得出結晶器中鑄坯的溫度分佈規律和凝固坯殼生成規律，同時研究了拉坯速度對坯殼生成厚度的影響 -
The side of the bridge or division between cells on a gravure cylinder or the thickness of material on a base cylinder shell
中義凹版輥筒墨坑間的間隔的側壁或在輥筒上物體的厚度。 -
It was the first time that the silica nanoparticles was coated with gd2o3 : eu rare - earth oxides, then the core - shell structure compound particles were obtained. the characterizations showed that the thickness of uniform coating is in 10 - 20nm ; the silica core is linked with the gd2o3 : eu shell by chemical bond si - o - gd ; because of the size effects and interface effects of nano - crystal coating, the diffraction and emission peaks become broadened. and at the same time, the transfer temperature of silica from amorphous to crystal is decreased
首次在納米sio2表面包覆一層gd2o3 : eu稀土復合氧化物，得到了核-殼結構的復合顆粒，表徵結果表明，均勻包覆層的厚度為10 - 20nm ； sio2核和gd2o3 : eu殼層物質之間通過化學鍵si - o - gd鍵的作用結合在一起；由於包覆層納米晶的尺寸效應和界面效應使xrd衍射峰和熒光光譜發射峰出現了寬化現象。 -
The calculating mold consisted of shell, pyramidal neck of shell with varied thickness, flange of ring with definite thickness for analytic solution is set up for the strength calculation and the design of the structure dimension of shell flange and pyramidal neck. this theoretic solution is compared with the results of finite element analysis and stress - strain measurement and is verified to be right
為設計計算烘缸法蘭及錐頸的強度與結構尺寸要求，建立以簡體、具有斜面的變厚度圓柱殼的錐頸及具有一定厚度圓環的法蘭環為解析解的計算模型，進行應力求解，將該理論解與有限元分析及應力應變實測結果進行分析對比，驗證該解結果的正確性。 -
Considering the increase of the shell ’ s thickness will induce the increase of the quality and the localization difficulty, the ring rib reinforcement can be installed on the shell to solve the problem of distortion and quality. the thickness and the rib reinforcement ’ s
考慮到組件的輔助支撐安裝在殼體上，增大殼體厚度就會增加其質量，從而增大組件安裝定位的難度，故在殼體上安裝環形筋板來解決變形和質量問題。 -
The xps shows there is no combined apex of the fe element because of the great thickness of the shell
復合粒子表面主要由si ， o元素組成，伴隨著少量的c ， h元素。
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