查询词典 stiffness

Many metals have high strength, high stiffness, and have good ductility.

许多金属具有高强度，高硬度以及良好的延展性。

Extended the semi-analytical finite element method into the Dugdale model of elastic-plastic fracture mechanics, the analytical elements based on the Dugdale model of mode Ⅰ and mode Ⅱ crack are constructed. The formulas for the stiffness matrices and load vectors of analytical elements are deduced.

将上面的半解析有限元法应用于弹塑性断裂力学中的Dugdale模型，分别构造了基于Ⅰ型和Ⅱ型Dugdale模型的裂纹解析元，并建立了解析单元的出口刚度阵和荷载向量的列式。

The unique class unit which makes up the deployable structures,'scissor-like element',is treated as a macro element.Formulation for duplet stiffness is derived.And the linear elastic response is investigated numerically using this formulation.Owing to the introduction of a novel type of macro element,the number of degrees of freedom is reduced,and the solution efficiency is increased.

将可展结构的特有单元——剪式单元作为一个宏单元来考虑，推导了宏单元的刚度矩阵，并用于可展结构线弹性响应的数值分析，减少了总体自由度，提高了算法效率。

A high order finite element model of a duralumin flexible beam with distributed piezoelectric sensors and actuators was presented in this paper. The beam equation was developed incorporating the stiffness, mass and electromechanical coupling effects of the piezoelectric apparatuses.

本文针对一套表面粘贴有分布式压电传感器和致动器的LY12智能材料柔性臂系统，在对系统组成进行分析的基础上，建立了柔性臂实验系统的有限元模型，并采用自由度凝聚法对该模型进行了降阶处理，以方便控制器设计。

The research on machining of precise EDG of low stiffness stick and servo control theory of EDG is the main part of this dissertation.

本文主要内容之一就是研究低刚度杆精密电火花磨削加工方法和电火花磨削加工的伺服进给控制理论。

The stiffness of a structure will be subject to elastic modulus and panel thickness.

一个结构的刚度将受到弹性模量和面板厚度的影响。

The stiffness of a structure will be the elastic modulus and the effects of panel thickness.

一个结构的刚度将受到弹性模量和面板厚度的影响。

The influence of measurement geometry and ultrasonic source and receiver are analyzed to highlight their role in the estimation of elastic stiffness from scattering coefficients. Extrinsic properties, such as surface roughness, are briefly dealt with.

报告中分析了几何结构、超声波源以及接收体对检测的影响，强调了它们在弹性刚度、散射系数的评估中的作用，涉及了非固有特性的处理。

The dissertation presents a mathematical modeling approach for the high-speed flexible linkage mechanisms equipped with bonded piezoelectric sensing/actuating elements employing a mixed variational approach with Hamilton's principle in conjunction with the finite element formulation. This model includes both the terms coupling the elastic and rigid-body motions of linkage mechanisms and the terms coupling the elastodynamics and piezoelectricity of the elements, incorporating their effects upon the mass and stiffness matrices which are in general non-symmetric.

本文以国家自然科学基金资助项目《弹性连杆机构有害振动的主、被动控制及混合控制研究》（资助号：59605001）和广东省自然科学基金项目《开链及闭链机构有害振动控制研究》（资助号：970381）为依托，对高速弹性连杆机构振动的主动控制中的建模、求解、控制律的选择、作动/传感元件的优化以及实验研究等几个关键问题进行了比较深入细致的研究，取得了一些具有重要理论意义和重大实际应用价值的成果。

The alternative method of electrotherapy is said to excite cold and tired nerves, relieve pain and stiffness.

替代方法是电疗说惊险刺激寒冷和疲倦的神经，减轻疼痛和僵硬。

In contrast to the ubiquitous rising-sun-with-rays military flag of the Japanese, Chinese banners and ensigns feature a range of designs.

与遍地都是的太阳军旗不同，中国人的旗帜和徽章设计得各式各样。

From their small corner of Feng's Guangzhou headquarters -- a jumble of pink leashes, squeezable rubber steaks, and plastic doggy Santas for Fido's stocking -- Soleil's designers come up with at least five new products a month.

从Feng 设在广州总部的产品展示柜台上可以看到，Soleil的设计师每月至少设计出5件新产品。