力学

Micro-scale and nano-scale modified cermet tool material is one of the most important research area of ceramic material.

对高性能金属陶瓷刀具材料的力学性能、微观结构和切削性能进行了详细的研究。

EFFECT OF TITANIUM CARBIDE ADDITION ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF ULTRA-FINE Ti-Ni CERMET

添加碳化钛对超细Ti-Ni金属陶瓷显微结构和力学性能的影响

Therefore, it is necessary to study the high mechanical property cermet tool materials and to promote their practical applications.

研究了烧结工艺和添加剂(Cr_3C_2、VC、La_2O_3和Y_2O_3)对材料体系Ti-Ni-Co显微组织和力学性能的影响。

The mechanical properties at room temperature were also tested, in order to correlate them with the cermet's starting composition and microstructural features.

对室温下该材料的力学性能进行了测试，并尝试把它们与金属陶瓷的原始成分和显微结构的特点联系起来。

According to the entire theory of plastic mechanics,the relationship between equivalent stress and equivalent strain of circular chamber plastic zone in the complex stress state is deduced from nonlinear softening constitutive relation of rock under uniaxial compression.

依据塑性力学全量理论，将岩体单轴压缩的非线性软化本构关系推广，得到复杂应力状态下圆形硐室围岩塑性区的等效应力与等效应变关系；籍以求得应变非线性软化的圆形硐室围岩塑性区半径、弹塑性区应力、应变和位移；进而求得相应情况下的硐室围岩平衡方程、地应力与硐室周边位移关系以及围岩压力方程。

Finally, all kinds of deflection curves are given with the change of the non-dimensional variable.

论文中有些力学概念不清，如：梁左端应为"固支边界"，而不是"固有边界"等。

Results indicate that, several mechanical parameters in the meat pressure characteristic curve can reflect its freshness.

结果表明，肉的压力特性曲线中多个力学参数能够反映其新鲜度。

By mechanical test of the steel strip and simulation of strip deformation in tension leveling using finite element method,characteristic features of the strip were obtained,such as;high yield stress,high yield ratio and low plastic elongation as the basic reason of difficulty in tension leveling and shape control.

通过对全硬钢的力学性能的测定和拉矫变形行为的有限元仿真，发现屈服应力大、屈强比高以及断裂时塑性延伸小等特性是造成镀锌后全硬带钢拉矫困难和板形难以控制的根本原因。

The according mathematics model and formula of characteristic value and inherent frequency were inferred and established.

固有频率的计算公式，并用实际算例对力学模型的合理性和数学模型的正确性进行了验

The system consists of four parts such as Data Management of Product Model,Finite Element Analysis, Optimal Design and Graphics Drawing; and its main work is searching for an optimal scheme of chief axis with Sequential Quadratic Programming Method by finite element static and dynamic characteristical analysis of the axis and saving the results of design as documents or outputing them.

系统出产品模型数据管理、有限元分析、优化设计和图形绘制四部分组成。通过对车床主轴二维垂直剖面力学模型的有限元静、动态特性分析，采用序列二次规划的优化设计方法寻求主轴设计的优化方案，并将优化设计结果形成文档或输出。提出产品设计模型的概念，通过它可自动生成有限元分析模型、优化设计模型和图形模型三个子模型，将有限元分析、优化设计、图形绘制三部分结合在一起。

They go to town. Would you just ask them?

他们在城里你能问他们吗？

Ossein pretreated for a2 weeks period exhibited the maximum% yield incase of bone gelatin, while the yield from intact skin was higher than that realized incase of de-scaled skin.

预处理时间达2星期的骨胶原表现出最高的骨明胶百分产量，然而从未处理鱼皮中得到的产率比去鳞的鱼皮得到的要高。