stiffened shell 中文意思是什麼
stiffened shell
解釋
加強殼體-
Stress analysis of coaming opening which cuts a ring on ring - stiffened cylindrical shell
切斷一根肋骨的圓柱殼開孔應力分析 -
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。 -
In the hogging condition, double bottom and the side shell remain the ultimate bucking strength, deck and upperwing tank remain the yield stress, and the other parts keep elasticity. then the key to calculate the ultimate strength of ship hull girders is to ascertain the ultimate bucking strength of the stiffened panels. in this regard, the developed formulation is designed to be more sophisticated than previous simplified theoretical method for calculating the ultimate strength of stiffened panels under combined in - plane bending and lateral pressure. fabricatio n - related initial imperfections ( initial deflections and residual stresses ) are included in the panel ultimate strength calculation as parameters of influence. all possible collapse modes involed in collapse of stiffened panels, including overall buckling collapse, column or beam - column type collapse, tripping of stiffeners and local bukling of stiffened web are considered
確定了船體梁整體破壞時的剖面應力分佈之後，關鍵在於確定板架的極限屈曲強度。本文充分考慮了在縱向彎曲、橫向壓力作用下加筋板可能發生的幾種破壞模式，即板架的整體屈曲破壞、樑柱形式的破壞、筋的側傾、腹板的屈曲並同時考慮了初始焊接殘余應力、初撓度的影響，使其更精確的計算加筋板的屈曲強度。對于加筋板中加強筋腹板的局部屈曲，採用解析法推導出筋的腹板的撓度方程及其邊界條件，求解相應的方程，從而計算出腹板的局部屈曲應力。 -
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。 -
Vibroacoustic analysis of a finite stiffened - cylindrical shell closed by circular plates
兩端用圓板封口的環肋柱殼振動聲輻射性能分析 -
In this paper, a study has been made of analyzing the acoustics and vibration characters of the plate & shell and stiffened plate & shell structures with fea ( finite element analysis ) and basic theories of structural vibration and acoustic radiation, which, to some extent, helps the nonprofessional people understand the acoustical characters of these structures through acoustical means
本文利用有限元方法，結合結構振動與聲輻射基本原理，對板殼、加筋板殼結構的聲?振特性進行了分析，利用信號處理技術實現結構聲?振特性的可聽化模擬。在一定程度上，使非專業人士也可以通過聲學手段了解結構的聲學特性。 -
The submarine structure is simplified to single or double infinite cylindrical shell stiffened with rings, bulkheads and stringers, focusing on underwater sound radiation from the single shell. the shell motion is described by donnell ' s theory including excitation forces and reactions of rings, bulkheads, stringers and fluid, which leads to the fluid - structure coupling vibration equation. expressing displacements by velocities, applying modal expansion circumferentially and fourier transformation longitudinally result in the shell ' s modal equations of motion
殼體的運動方程採用較為簡單的donnell理論描述，運動方程中包括了激勵力、加筋結構（環肋、艙壁和縱骨）和流場對殼體的作用力，從而組成流場-結構的耦合振動方程，並進一步將方程中的位移用速度表示，然後沿軸線方向進行fourier變換，將速度和各項荷載沿圓周方向進行模態展開，得到了殼體振動的模態運動方程。 -
The genetic algorithm approach is used in this study to search for the optimal design values of pillar, deck stiffened panels, transverse web frames, flexible structures and side shell stiffened plates
在最佳化分析中採用基因演演算法以隨機搜尋方式尋找出汽車運送船上各層甲板中之支柱、加強肋板架、橫向肋骨、側板板架以及撓性結構的最佳化之設計尺寸。 -
The low frequency noise of the ring - stiffened cylinder with double shell is depressed by increasing structure stiffness, the numerical simulation is adopted to evaluate the acoustics performance, find that the vibration and acoustic radiation of the structure could be depressed by increasing the structure stiffness within the discontinuous range of the low frequency
摘要通過增大雙層加肋圓柱殼的剛度降低低頻噪聲，使用數值模擬技術，評價結構的聲學性能，發現增大雙層加肋圓柱殼結構剛度，可在低頻段有限頻率范圍降低結構的振動與聲輻射。 -
In this thesis, the expression of stress modification coefficients will be given when the intermediate stiffeners are set on the ring - stiffened cylindrical shell
本文推導了加設中間支骨的環肋圓柱殼應力修正系數公式。 -
The theoretical critical pressure of the local stability will be improved further, respectively considering the non - uniformity of circumferential stress distribution over the ring - stiffened cylindrical shell and the torsion of the frame
分別考慮周向應力不均勻分佈和肋骨扭轉對殼板穩定性理論臨界壓力的影響。 -
Based on the knowledge of software engineering and the theory of object - oriented programming, the software of design and calculation of ring - stiffened cylindrical shell is developed by using visual basic
運用軟體工程理論和面相對象編程思想，開發了環肋圓柱殼設計計算軟體，從而大大提高計算精度並避免手工計算的大量重復工作。 -
Noise control can be well actualized with understanding of the acoustics characters of thin plate, cylindrical shell, stiffened plate and stiffened shell in liquid medium, which are the most common structure of car, aircraft and ship
薄板、圓柱殼、加筋板、加肋圓柱殼是汽車、輪船、飛機等交通工具中的結構組織形式，了解他們在流體介質中的聲學特性有助於對他們實施有效的減振降噪措施。 -
Based on some a torpedo composite shell under hydrostatic pressure, the engineering design and experiment research for the stability of composite torpedo stiffened shells are carried out under high hydrostatic pressure in the paper. and the manufacture technology of special shaped stiffened thin wall shell is investigated systemically in practice and theory
本文以某型水雷復合材料耐外壓殼體的研製為背景，對內置加筋異形結構殼體的外壓穩定性進行了理論分析與實驗研究，並對其成型製造技術進行了系統的實驗研究。 -
Since the overall failure of a ship hull is normally governed by buckling and plastic collapse of the deck, bottom or sometimes the side shell stiffened panels, it is of crucial importance to accurately calculate the ultimate strength of stiffened panels in deck, bottom and side shell for more advanced structural design of ship structures
由於船體梁的總體破壞通常由甲板、底板或者舷側加筋板的屈曲或塑性破壞控制，因此在船舶結構設計中準確地計算甲板、底板或舷側加筋板的極限強度就顯得尤為重要。 -
Analysis of acoustic radiation from orthogonally stiffened cylindrical shell in water based on the finite element method
水中雙向正交加肋圓柱殼體聲輻射的有限元法
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