The manufacture system of filament winding ( fw ) and fiber placement ( fp ) is the one of advanced equipment for frp products. it can be used to produce the products of the positive curvature gyration bodies, such as container cylinder, oil tank, tube, orb, cone, assembled body and so on. furthermore, it is more suited to machining some products of the complex bodies such as the surfaces of the negative curvature gyration bodies, the shell components which have slots and reinforced tendons
纖維纏繞/鋪放聯合製造系統是纖維增強塑料( frp )製品生產的先進製造裝備之一,可用於製造如圓筒容器、儲罐、管、球、
錐形體或組合形體等正曲率回轉體的製品,更適用於製造含有負曲率的回轉體表面、具有深槽、加強筋的
殼體構件等外形相對復雜的纖維增強塑料製品。
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。
At first, some advances in the research of dynamic response of cylindrical shells and conical shells are reviewed, and those approaches for studying such kind of problems are summarized here as well. the main objects studied in this paper are the transient response of cylindrical shells under longitudinal line - loading and that of conical shells under cosinoidal impulsive loading
首先回顧總結了圓柱
殼和圓
錐殼動力響應的研究進展情況,並簡單歸納了該類問題研究的方法,確定了本文的研究對象主要是縱向線載荷作用下的圓柱
殼瞬態響應和餘弦沖擊載荷作用下的圓
錐殼瞬態響應。
Following, using the experimental methods, the dynamic response of the stiffened conical shells under cosinoidal impulsive loading is studied. the changes of dynamic response of points along circumferential line of the conical shells are analyzed, and the characteristics of dynamic response of points are studied by both the time - domain analytic method and the frequency - domain analytic method
採用實驗方法研究了加筋圓
錐殼在側向餘弦載荷作用下的動力響應,分析了沿環向各點的響應變化,並從時域和頻域分析了它們各點的響應特性。
The dynamic response of cylindrical shells and conical shells under radial non - uniform impulsive loading has an important application in the filed of military and civil engineering. in this dissertation, the problem of transient response of the cylindrical shell under longitudinal line - loading and that of the conical shell under cosinoidal impulsive loading are studied, and some useful conclusions that have important significances in both theoretic studies and engineering applications are obtained
圓柱
殼和圓
錐殼在側向沖擊載荷作用下的動力響應具有重要的軍事和民用工程背景,本文對縱向線載荷作用下的圓柱
殼瞬態響應問題和餘弦沖擊載荷作用下的圓
錐殼瞬態響應問題進行了研究,取得了一些具有重要理論意義和實用價值的研究成果。
The effects of r / h ratio, l / r ratio and cone angle on the dynamic response of the conical shells are discussed in this section
分析了圓
錐殼結構的徑厚比、長徑比及
錐角變化對結構應力響應的影響。
Abstract : the end basket with a form of double layered conical weave net is simplified into a model of continuous conical shell - beam combined structure and in accordance with the test results of experimental modal analysis. a part of geometrical and material parameters of the conical shell in the model are identified to get an equivalent mechanical model which has the same dynamic characteristics as that of the prototype structure. by simulation and experiment, the effectiveness of the method offered is fully verified
文摘:將大型汽輪發電機定子端部的雙層圓
錐型編織網
殼簡化為連續
錐殼-梁組合結構.根據實際結構的試驗模態分析所得到的模態參數識別模型中
錐殼的部分幾何、彈性參數,獲得了與定端繞組實際結構具有相同動特性的當量力學模型.對實際機組的計算和實驗結果證明了本文中的方法是可行的
In the case of 16 boundaries, cubic b - spline function taken as trial function, the solutions to nonlinear stability of truncated conical shells and spherical shells with variable thickness were obtained by the method of point collocation
在16種邊界條件下,以三次b樣條函數為試函數,用配點法計算變厚度開頂圓
錐殼和球
殼的非線性穩定。
Impact buckling of laminated composite shallow conical shells
復合材料層合扁
錐殼的沖擊屈曲
Large thermoelastic deformation analysis on shallow conical shell of functionally graded materials
功能梯度材料扁
錐殼的熱彈性大變形分析
Nonlinear vibration of thin shallow conic shells under combined action of peripheral moment and transverse loads
扁薄
錐殼在周邊彎矩和橫向載荷共同作用下的非線性振動
Under action of uniformly distributed load, line load along inside edge or uniform moments along outside edge, upper and lower critical loads of truncated conical shells and spherical shells with linearly variable thickness were computed
出了在均布荷載、內邊緣均布線荷載或外邊緣均布力矩作用下,線性變厚度開頂圓
錐殼、球
殼的上、下臨界荷載。
Truncated conical shell
截頭圓
錐殼體
Finally, some problems related with the dynamic response of cylindrical shells and conical shells in the experiments are modeled numerically by the fem
對圓柱殼和圓錐殼的動態響應實驗研究中的一些問題,利用有限元程序進了模擬計算。