The eigenvalues and shape modes of double cylinder shell,with and without fluid load,were obtained by using the same finite element approach.
试验分别对双层柱壳充水和不充水情况下模态和模态频率进行了测量,结果证实了数值计算方法的正确性。
This paper researches the energy absorption capability of a double cylindrical shell structure with coated acoustic covering layer and stiffening rib.
该文针对敷设声学覆盖层的加筋双层圆柱壳的抗冲性能进行了数值仿真研究,给出了兼具抗冲和隔振功能的声学覆盖层结构设计及性能参数优化建议。
The balance equation about the segments of the double cylindrical shell is built by using the coordinated condition of deformation for the orthogonal connection of the ring plate and the cylindrical shells inside and outside,and taking each segment of double cylindrical shell as an entire structure.
利用圆环板与内、外圆柱壳正交连接的变形协调条件 ,把每跨双层壳作为整体 ,建立双层圆柱壳段的平衡方程。
Excited by harmonic radial point force,the stationary vibration response of submerged double cylindrical shell with ring supports linked by brace-splint or annular plates is analyzed by FEM.
基于有限元方法分析了在径向简谐点力作用下,支柱-托板式连接和实肋板式连接时水下双层加筋圆柱壳的稳态振动响应,进而通过壳体径向面均方速度级比、径向等效机械阻抗两个指标,分析了激励位置变化时,两种典型连接方式下的双层加筋圆柱壳层间结构的振动传递特性,研究表明所定义的指标能够有效的对双层圆柱壳的振动传递特性进行评估,径向简谐点力激励位置的改变对支柱-托板式连接的双层加筋圆柱壳的振动传递特性影响较实肋板连接时相对明显,但激励位置改变对内外壳间振动能量传递的影响总体较小,选用合适的结构尺寸参数,亦可使实肋板式连接结构的振动性能不弱于、甚至优于支柱-托板式连接结构。
The model of a cylindrical double-shell under water for sound prediction is built using SEA.
采用统计能量分析方法,建立水下有限长双层圆柱壳体结构机械噪声预报模型。
The symmetrical bi-cylindrical structure is a closed shell composed by two unclosed arch shell.
本文提出一种新型潜艇耐压艇体结构：“对称双圆弧柱壳”。
Computation and measurement of double shell vibration mode with fluid load
双层柱壳的流固耦合模态计算与试验研究
Influence by the inner shell and the outer shell on sound-vibration characteristics from double cylindrical shells in water
内、外壳对水下双层圆柱壳声振性能影响分析
On characteristics of vibration transmission for the connection structure between double cylindrical shell with ring supports
双层加筋圆柱壳层间结构的振动传递特性
Acoustic scattering from submerged double infinite concentric cylindrical shell insonified by incident plane wave is studied.
研究水下双层无限长圆柱壳体的声散射。
The Dynamic Response of Folding Double-Layer Cylindrical Reticulated Shell;
折叠式双层柱面网壳在地震作用下的动力响应
Theoretical and Shaking Table Experimental Study on Earthquake Resistant Control of Double-Layer Cylindrical Lattice Shell;
双层柱面网壳减震控制理论和振动台试验研究
THEORICAL STUDY ON SEMI-ACTIVE CONTROL OF DOUBLE-LAYER CYLINDRICAL LATTICE SHELL;
双层柱面网壳结构半主动控制理论研究
Investigation on the Finite Element Method of Vibration from Finite Length Double Cylindrical Thin Shells
有限长双层圆柱薄壳结构振动有限元方法研究
Calculation of vibration and sound radiation from double stiffened cylindrical shells excited by interior source
内部声源激励加筋双层圆柱壳声振计算方法
Sound radiation characteristics of finite double-layer annular-plate stiffened cylindrical shells
有限长双层加肋圆柱壳体的声辐射特性
Study on Nonlinear Stability of Double-deck Cylindrical and Double-deck Hyperbolic Parabolic Reticulated Shells;
双层柱面和双曲抛物面网壳结构的非线性稳定性研究
Reliability Calculation and Discussion of Design Method of Cable-Stayed Double-Layer Cylindrical Latticed Shells
斜拉双层柱面网壳结构可靠度计算及设计方法探讨
Investigation on Static and Stabilization for Pretension Lattice Shell Structure of Two-layer Cylindroids;
拉索预应力双层柱面网壳结构的静力及稳定研究
Study on Vibration and Acoustic Radiation from Tow Concentric Ring-reinforced Cylindrical Shells Covered with Sound-absorbing Layers;
敷设消声瓦的双层加肋圆柱壳的振动和声辐射研究
Formed Process and Load Behaviors Research on Partion Double-Layer Barell-Vault Rebiculated Shell Shaped by Posttensioning
后张拉整体成型局部双层柱面网壳成型和承载力研究
FORMED PROCESS RESEARCH ON LOCAL DOUBLE-LAYER BARREL-VAULT RETICULATED SHELL BY POSTTENSIONING
后张拉整体成型局部双层柱面网壳成型过程的研究
Study on the Performance of a New Type Pre-stress Cable-single-layer Cylindrical Reticulated Shell Structure;
新型拉索—单层柱面网壳结构性能研究
Actuation characteristics and control of thin cylindrical shells laminated with photostrictive actuators
光电层合圆柱薄壳的激励特性及控制