During the investigation , a mechanical model of the novel drive mechanism was established based on the large deformation theory in the mechanics of materials , and the maximum transmission force of the mechanism was formulated and calculated 基于材料力学大变形理论，建立了微小弹性啮合轮传动机构的力学模型，推导了最大传动力的表达式，应用该表达式计算了所设计机构的最大传动力。
This article , which unravels the principle of mechanics of materials , and clarifies hooke ' s law , and its condition found by zheng xuan , narrates points differing from yi degang ' s and discusses the problem of history of mechanics 摘要从材料力学的原理出发，解读和阐明郑玄的发现，证明郑玄和胡克的表述是等价的，但都有些不足，并认为郑玄具备发现弹性定律的条件，从而否定了仪德刚等人的观点。
Experience formula is applicable for some small and low precision - requested assembly fixture , for some complicated and large scale ones , fem for space frame is requested . at the end , an example based on this system has been given 即对于结构简单、精度要求不高的部装型架，采用材料力学和结构力学理论公式进行刚度校核；对于总装等结构复杂，精度要求高的大型型架，采用空间刚架的有限元分析。
At present , international investigations on the mechanical properties of concrete are beginning to transfer from the classic macroscopic mechanical level to a minor level , i . e . mesoscopic level , and a lot of mesoscopic mechanical models had been proposed 目前，国际上对于混凝土材料力学性能的研究已经开始从经典的宏观尺度转向更细微的细观尺度，建立了一些用于混凝土断裂过程模拟的数值模型。
Trained experience : being knowledge about theory dynam , material dynam , project management , quality management , electrical technology , electrician foundation knowledge , iso9000 , ts16949 , iso14001 , other quality system and quality management professional knowledge 培训经历：具备理论力学、材料力学、工程管理、品质管理、电子技术、电工基础知识、 iso9000 、 ts16949 、 iso14001等质量体系，品质管理专业知识。
Main curricula : thermodynamic of material , crystal structure and the technology of x - ray , the principle of the solid state phase transition , the force behavior of material , metal material science , surface engineering , mate and engineering , the application of computer in material science 主要课程:材料热力学,晶体结构和x射线学,固态相变原理,材料力学性质,金属材料学,表面工程,材料成型原理与工艺,计算机在材料科学中的应用
On basis of iiterature , the size of ahtmb for chinese was obtained and prototype of aht - avb was manufactured with titanium ailoy . the materiai and functionai characteristic of aht - avb were also described . part two is for biomechanical study of ahtwb 在复习文献的基础上，提出国人人工椎体规格数据，并设计出适合国人椎体形状及大小的可调式人工椎体，阐述其材料力学、设计特点及性能； (二)可调式中空钛合金人工椎体的生物力学研究。
The stress of radius position of the part is analyzed based material mechanics , moreover , a new method calculating the stress concentration factor is deduced , the calculating method is not only more concise and convenient than that of elastic mechanics , but also the calculating result is agreeable to practical results 文中通过对构件圆角处应力的分析，应用材料力学方法，推导出一种计算应力集中系数的方法，比弹性力学方法简便，并与实际相符。
Traditionally , loads of the arc gate are applied on the support or gate frusta as a set of concentrated load , but the effect range of such load on the frusta cannot be solved by material mechanics and structure mechanics . most of the load cases are fulfilled through optic - elastic test 通常弧门荷载作为一组集中荷载作用于牛腿或闸墩上，而这组荷载对闸墩受力的影响范围材料力学方法和结构力学方法是不能解决的，受力状况大部分是通过光弹试验完成。
Their researchs and devolpments have been cared about widely . however , theoretical accouts of rubber material are very difficult because of the complex characteristics of its mechanical behaviors . so it has influence in the rubber bush mountings ’ design and applications to a certain content 橡胶支座的研制和开发已受到广泛的重视,但由于橡胶材料特性十分复杂,橡胶材料力学行为的理论研究非常困难,这在一定程度上影响了橡胶件产品的设计和应用。
