Introducing the theory and application of boundary element method on the sound radiation, giving the process of solving vibration noise radiation problem using boundary element analysis software ; presenting the coupling theory and the combination analysis of finite element method and boundary element method, and doing relevant analysis based on close drum shell ; programming the noise data simulation program using the numerical calculation software, simulating the acoustic and pressure data of a key point in the transient response acoustic field of the close drum shell, realizing the audibility of the noise, using the virtual reality tools to simulate the vibration noise of the drum shell ; combining the finite element method and boundary element method to analyze the vibration noise radiation of some gear box, and completing the whole simulation process of the vibration noise of the gear box
綜合介紹了邊界元法在聲輻射問題上的理論及應用；並給出了運用邊界元法分析軟體求解振動聲輻射問題的過程。闡述了有限元法和邊界元法的耦合理論及組合分析方法，並以封閉鼓形
薄殼為分析對象進行了相應的分析。利用數字計算軟體編制了噪聲數據模擬程序，並模擬了通過組合方法分析封閉鼓形
薄殼瞬態響應聲場而獲得一關鍵點的聲壓數據，實現聲音的可聽化，隨后通過虛擬現實工具實現了該情形下橢球
殼振動噪聲的虛擬模擬。
A dense core of incandescent helium is surrounded by a thin shell of hot, fusing hydrogen.
一個由白熾的氦形成的稠密的核外麵包圍著一層熾熱熔化的氫
薄殼。
Analysis of thin - shell structures based on bi - moduli theory
用拉壓不同模量理論分析
薄殼結構
Specification for design of reinforced concrete shell structures
鋼筋混凝土
薄殼結構設計規程
On the basis of the theory of thin shells and the non - moment assumption, the equations of the motion of the conical shells under lateral cosinoidal loading are derived in the case of ignoring shearing stress
基於
薄殼理論和無矩假定，在略去剪切應力的情況下推導了圓錐
殼在側向餘弦載荷作用下的運動方程，並採用半解析差分方法進行了數值求解。
Application of thin shell colour sheet metal in the super - span building engineering
薄殼彩色金屬拱板在大跨度建築工程屋頂上的應用
To meet this challenge, a research project was supported by ministry of communication and bv shanghai zhenhua port machinery co. ltd. focusing on analysis of tdtcd ( traditional design theories of crane drums ) the paper has studied the impacts of features under the binding force of wire ropes, the end - plate and rope slot. this study is based not only on the thin shell theory and viscoelastic mechanics to calculate the strength and stability of drum, but also on an experiment with technology in " state of act "
本文結合交通部重點科技項目「港口起重機鋼絲繩傳動件高性能技術研究」和上海振華港機股份有限公司委託項目「起重機焊接捲筒極限壁厚研究」 ，針對起重機捲筒傳統設計方法偏於保守的情況，以
薄殼理論和近代力學為基礎，以現代試驗技術為研究手段，對鋼絲繩緊箍力作用下的外載特性、端板、繩槽等因素對捲筒強度和穩定性的影響進行了系統的理論研究，在深入開展捲筒強度、穩定性和實驗模態分析等試驗的基礎上，提出了有別于傳統方法的捲筒強度、穩定性計算方法。
Dishing reinforced shell ' s approximation calculation under symmetric load
軸對稱荷載下加筋碟形
薄殼的近似計算
A new axisymmetric curved shell element for thin thick shell
一種
薄殼厚
殼通用的軸對稱曲
殼單元
Steel thin - walled and reverse air door
鋼質
薄殼反向風門技術條件
Buckling of thin cylindrical shells under uniform axial compression
均勻軸壓圓柱
薄殼的穩定性分析
Weighted solution of small - deflection bucklingequation of thin shell
薄殼小撓度屈曲方程的加權解法
An infected hen lays fewer or no eggs, or eggs with thin shells
受感染的母雞生少或無蛋，還是蛋與
薄殼。
On exploring modeling of thin shell roof using cd concurrent design concept
基於并行設計思想的
薄殼屋面造型研究
Shell type construction
薄殼結構
Arched corrugated metal roof ( acmr ) is a new type of metal arched thin - shell structure
金屬拱型波紋屋蓋結構是一種新型的金屬拱型
薄殼結構。
Results from this study provide important basis for buckling experiments of thin shell structures
本文成果與方法為
薄殼結構屈曲試驗奠定了基礎。
Buckling of thin shells is generally sensitive to geometric imperfections, so precise surveys of initial geometric imperfections are essential for high quality shell buckling experiments
摘要
薄殼結構的屈曲通常對初始缺陷十分敏感，因此對幾何初始缺陷的精確測量是高質量的
殼體屈曲試驗的必要環節。
This paper has the important theoretical and practical value. the main research woks are concluded as follows : 1, among the tubular analysis methods, the reasonable analytical study is a important and indispensable part
本文主要研究工作如下所述： （ 1 ）理論簡化模型研究：由於管節點是由幾個鋼管焊接而成的結構，相當於一個空間
薄殼結構，受力狀態復雜，精確理論分析難度較大。
Corrugated arch metal roof is a new kind of large - span thin - shell structure. it has been widely used since 1980s when it was firstly imported into china. and it has also been proved that this kind of structure possesses a great vitality and a bright future
金屬拱型波紋屋蓋是一種新型的大跨度拱型薄殼結構，從上世紀八十年代被引進到我國，該結構已得到了廣泛的應用，具有極強的生命力和發展前景。
