The Bean Bag Damping ( BBD) technique and its mechanism of impact damping are presented in this paper, and this technique is applied to the control of wall vibration and interior noise in a thin-walled enclosed cavity.

1、

Technical Study of Machining Deformation on Thin-walled Cavity Parts

薄壁腔体类零件加工变形问题工艺研究

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In this paper, a kind of thin-walled beam element analytical model that can be used in the elastic analysis of thin-walled beam structure was presented.

本文导出了用于薄壁杆系结构弹性分析的薄壁梁元分析模型。

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3、

Then, the bending and torsion characteristic parameters of thin-walled beam with different cross-sections were calculated and compared with each other.

分析并比较了多种截面薄壁梁的弯曲与扭转特性。

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A simple calculation expression of the shearing flow and the coordinates of bending center is introduced for the thin-walled beam with open section.

针对开口薄壁截面梁的剪流和弯心坐标的复杂计算问题，导出了简便计算公式。

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5、

The torsional strength and ultimate torsional strength of the warship is evaluated based on the thin-walled beam theory in this paper.

本文基于薄壁梁理论对舰船扭转强度和极限扭转强度进行评估。

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6、

Based on the space beam element analytical model, a new thin-walled beam element model considering the restrained torsion was derived in this paper.

在有限元空间梁元模型的基础上，导出了考虑杆件约束扭转的薄壁梁元分析力学模型。

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According to the thin-walled beam element analytical model obtained by this paper, the interrelated structural calculating program was worked out.

根据本文所导出的薄壁梁元分析模型，编制了相应的结构计算程序。

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Asymptotic Solutions for Twisting and Bending Vibration of Thin-Walled Beam Bridge under Horizontal Seismic Force with Nonlinear Damping

水平地震时具有非线性阻尼的薄壁梁桥弯扭振动的渐近解

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Research on Cross-section Warping Coursed by Distortion of the Linear Elastic Thin-walled Beam Based on Generalized Beam Theory

基于广义梁理论（GBT）的线弹性薄壁梁考虑截面畸变的翘曲研究

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An exact thin-walled beam element

一种精确的薄壁杆单元

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Based on the basic theory of axial and bending collapse mechanism of thin-walled beam, its stiffness characteristics are evaluated.

根据薄壁梁的轴向压溃和弯曲的基本理论，获取了薄壁梁的刚度特性。

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Using virtual displacement principle and stability interpolation functions, stiffness equation of a three-dimensional thin-walled beam element is derived.

利用虚位移原理和稳定插值函数推导了空间薄壁梁单元的刚度方程。

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Taking a thin-walled beam with channel cross-section as an example, the dynamic elastic buckling was investigated.

以槽形断面薄壁梁为例进行了算例计算和分析。

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Solution of oscillation equation in timoshenko thin-walled beam considering coupled compound bending and twisting

Timoshenko薄壁梁双向弯曲与扭转耦合的振动方程及求解

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The advanced point estimate method is presented to evaluate the random properties of the torsion of thin-walled beam.

提出了改进点估计法来计算薄壁梁结构扭转的概率特性。

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The Simulation and Analysis of the Characteristic of Deformation and Energy Absorbing of the Thin-walled Beam's Dynamic Crash

薄壁梁动态撞击的变形吸能特性的仿真与分析

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Coupling bending-Torsional Vibration of Bernoulli-Euler thin-walled beam including warping effect

考虑翘曲影响的Bernoulli-Euler薄壁梁的弯扭耦合振动

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Element stiffness matrix of thin-walled beam considering restrained torsion

考虑约束扭转的薄壁梁单元刚度矩阵

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Simple calculation of the coordinates of the bending center of the thin-walled beam with open section

开口薄壁截面梁的弯心坐标的简便计算

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Stochastic Torsional Analysis of Thin-Walled Beam Structures

薄壁梁结构的扭转随机分析

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