查询词典 mechanical damage

Based on statistical damage theory, the instantaneous damage constitutive relationship of gypsum breccias is studied. In consideration of the impact of damage threshold, a statistical damage constitutional equation is established.

在以上试验的基础上，基于统计损伤理论研究了石膏角砾岩瞬时损伤应力应变本构关系，提出统计损伤应考虑损伤门槛的影响，建立了考虑损伤门槛的统计损伤本构方程，理论计算结果与常规试验结果比较接近。

ABSTRACT Based on the existing damage model of rock blasting and the theory of rock damage and fracture, a new damage model for rock blasting, a gas-driven fracture propagation and damage localization at the crack tip model during explosion products are proposed.

在分析研究现有岩石爆破损伤模型和岩石损伤断裂理论的基础上，建立了一个新的岩石爆破损伤模型和岩石在爆生气体作用下的裂纹扩展及裂纹尖端损伤局。。。

The rock damage model and the damage-coupling model suited to analyze the whole process of water jet breaking rock were established with continuum damage mechanics and micro damage mechanics.

运用连续损伤力学和细观损伤力学理论，建立了适用于水射流破岩全过程分析的岩石损伤模型以及宏细观损伤的耦合模式。

The result showed that the main damage influence of diseases and worm was thick of ear, grains of row and the weight of one hundred grains, the grade of disease and the amount of worm had significant positive correlation to yield loss; the relationship of diseases and worm was complex, the yield loss of mixed damage was occupied 41.48% of the total damage of the single, the sequence was A＜C＜B＜D＜ABCD＜, the simulated models of mixed damage and economic threshold were developed.

研究表明，病虫为害主要影响穗粗、行粒数和百粒重产量构成因素，病级和虫量与产量损失呈显著正相关；病虫之间存在复合为害关系，复合产量损失率占四者单独造成产量损失率之和的41.48%，其大小依次为：A＜C＜B＜D＜ABCD＜，并组建了复合为害损失及复合经济阈值模型。

Co-ordination between the railway company has four new Shenzhen Metro Corporation Board on the 1st line of the four target the installation of integrated electrical and mechanical equipment, Anhui Huadian Suzhou water pipeline project, the Shenzhen subway project between the installation of fire doors, Beijing Metro Line IV V standard integrated Electrical equipment installation and equipment engineering and environmental monitoring system, the Beijing Subway Line blanking integrated mechanical and electrical renovation project of Beijing Metro Line Willow on the 10th installation of depot facilities, the Beijing Olympic Park transport links underground access to install the Second Section of the Electrical and Mechanical Engineering , Baotou Coal Chemical Industry apotheosize the second installation of recycled water, the Beijing-Shanghai high-speed rail train Shanghai section.

公司先后配合中铁四局集团公司新建深圳地铁一号线四标的综合机电设备安装工程、安徽宿州华电给水管道工程、深圳地铁一期工程区间防火门安装工程、北京地铁五号线四标综合机电设备安装工程及环境与设备监控系统工程、北京地铁一号线综合机电消隐改造工程、北京地铁十号线万柳车辆段设备安装工程、北京奥林匹克公园地下交通联系通道二标段机电安装工程、包头神化煤化工第二循环水安装工程、京沪高铁上海动车段工程。

Master degree or equivalency diploma or higher in mechanical related fields, such mechanical engineering, eletro-mechanical engineering , heat treatment ,automobile design,mechanics etc.

研究生或同等学历，或以上学历的相关专业，如：机械制造，机电一体化，热处理，汽车设计，力学等。

Law of conservation of mechanical energy obeys the relativity principle of mechanics;2. An article in elsewhere censuring papers published in this journal is replied, discussing in detail the relation between the law of conservation of mechanical energy and the mechanical relativity.

详细阐述了机械能守恒定律成立的条件及该定律服从力学相对性原理所需满足的条件，回答了《河北师范学院学报》在1997年第2期上赵佩章等同志对本刊多年来所发表的有关文章的批评。

Dynamic mechanical analysis,mechanical properties and the thermal dilatability measurements were used to study the effects of SF content on dynamic mechanical properties,impact strength,bending strength,bending modulus,specific strength,specific modulus,wear resistance and thermal dilatability.

采用动态力学、力学性能、热膨胀性能等测定研究了剑麻纤维的加入量对复合材料的动态力学性能、冲击强度、弯曲强度、弯曲模量、比强度、比模量、耐磨性能、热膨胀性能的影响，用扫描电镜观察了材料冲击断面和磨损面的形态。

The mechanical properties of these silk fibers were also measured. To explore the control capability of spider on the spinning process and its influence on the mechanical properties of dragline silk, spiders were anaesthetized and the mechanical properties of dragline silk reeled from an being anaesthetized spider were measured.

采用麻醉的方法研究蜘蛛在逐步失去自我控制的过程中分泌的牵引丝的力学行为，以探索蜘蛛对成丝的控制能力与纤维性能间的关系，分析了成丝张力和湿度对牵引丝力学性能的影响。

The mechanical parameters in the model are treated as random variables and it is then resolved with Taylor extension stochastic finite element method, The distribution characteristics of the pore pressure, the effective stress and the displacement are researched by treating the mechanical parameters of the rock as random variables. The sensitivities of the pore pressure, the effective stress and the displacement to the random mechanical parameters are also analyzed.

视模型中的参数为随机变量，采用Taylor展开随机有限元法对该模型进行数值模拟，研究参数具有随机性情况下耦合场中孔隙压力、有效应力，位移等场变量的随机分布特征及孔隙压力、位移等场变量对参数的灵敏度。

Metrorrhagia is also gynaecological problems of common diseases.

崩漏是妇科常见病也是疑难症。

WordFTP gives you the convenience and timesaving you need.

wordftp让您的方便和省时您所需要的。