In consider drilling rod state , hole state , creep into course influence foundation of parameter synthetically , the drilling rod model under acting on the pulling force and torsion together carries on the theory to calculate , receive drilling rod pulling force and torsion differential equation group , in order to benefit drilling rod strength further to analyse 在综合考虑钻杆状况、钻孔状况、钻进过程参数的影响基础上，对拉力和扭矩共同作用下的钻杆模型进行理论计算，得到钻杆拉力一扭矩微分方程组，以利于钻杆受力的进一步分析。
In tall buildings , for frame - shearwall structure with steel truss transfer story with large span , studies on its dynamic characters and seismic performance are performed . with different transfer story location at the structure , the difference analysis about the structures to period and mode , displacement , and shear etc . is performed in detail . and the vertical load effect to the steel truss transfer story with large span is analyzed 对于高层建筑中带大跨度钢桁架转换层的框架?剪力墙结构，分别对不同转换层设置高度下整体结构的动力特性和抗震性能进行了分析，对整体结构的周期和振型、整体结构的位移和层间位移、结构的剪力和层间剪力等方面性能的差异进行了研究；对大跨度钢桁架转换层在竖向地震作用下对其受力的影响进行了研究。
According to the characteristics of the piston pump when it works with the diesel engine , the different outer load leads to different rotational speed and mechanics characteristics of the piston . in order to learn the property of the movement and mechanics of the piston but not experimentalize , simulink which is the simulation toolbox of matlab ( the most popular large - scale mathematic software ) is carried out to simulate the process of the movement and the receiving force of the piston 根据发动机和全功率轴向柱塞泵的工作特性，柱塞泵在受到的外负载不同时，柱塞的转速和受力情况就不一样，为了能在不做实验的情况下就能了解柱塞的运动特性和受力特点，利用现在最为流行的大型数学软件matlab的仿真工具箱simulink对其进行了运动和受力的仿真分析。
In order to solve it radically , making power assembly of bj1036e2f1 light truck the research object and through dynamic simulation analysis of power assembly , this thesis obtains the distribution rules of forces of the bolts linking three shells mentioned above and the relation between forces of the bolts and rotate speed of engine . after finite element mode analysis of these three shells , inherent frequency and vibration model of shell of power assembly are gained , and thus its dynamic character is realized . based on computer simulation analysis , experimental model of power assembly is acquired by vibration test and strength test of shell of power assembly , and the relation of forces of the shell and rotate speed of engine and imbalanced mass of rotate components is studied 为了从根本上解决该问题，本论文以bj1036e2f1轻卡动力总成为研究对象，通过动力总成的动力学仿真分析，找出了三壳之间联接螺栓受力的分布规律和螺栓受力与发动机转速的关系；通过三壳的有限元模态分析，得到了动力总成壳体的固有频率与振型，从而了解了动力总成壳体的动态特性；在计算机仿真分析的基础上，通过动力总成壳体的振动测试和强度测试，得出了动力总成的试验模态，并研究了壳体受力与发动机转速和旋转部件不平衡质量的关系。
The function of this model is more powerful , so the model can be used in three - dimensional stress state . using damage concept to reflect the phenomenon of continuous stiffness degeneracy and nonlinear behavior for concrete , combined material parameters with physical phenomenon of concrete makes the results with the model in three - dimensional stress state for concrete consist with experiment and settles the difficulty of calculate 该模型是一种功能较强的模型，可以用于混凝土三向受力的情况，采用损伤概念来反映混凝摘要土连续性刚度退化现象和非线性性能，把材料参数与混凝土一些物理现象组合在一起，使得这种模型应用于混凝土三向受力时与实验结果的一致性和计算上的困难得以解决。
Through the analysis of load ' s distributing and rational supposition , the calculate means of steered skin diaphragm is presented ; the shear capacity ' s analysis by finite - element software " ansys " . the model is predigested by use of the concept that the profiled sheet is transformed into the perpendicular - anisotropic board . the calculate result of model is also obtained 通过对蒙皮体系整体受力的分析，提出合理的力学假设，利用蒙皮体系的整体平衡关系，推导了不同破坏形式下蒙皮体系的极限承载力的简化手算方法，进而得到受力蒙皮体系极限承载力的确定方法；计算机有限元分析。
In general , both of them are used to verify the results . using geomechanical model test method , the overloading process and wreck character of high arch dam was emulated completely for tengzigou arch dam . it is emphasized for stabilization safety evaluation various major loading function of high arch dam must be accounted and arch dam ' s whole stability is the most important 本文用地质力学模型试验方法分析了藤子沟拱坝的超载过程和破坏特征，并强调无论是超载试验还是超载计算分析，在评价拱坝安全度时都应综合考虑各种影响拱坝受力的主要荷载因素，以拱坝整体工作能力作为评价依据。
Analysis of prototype with frame - bent in the longitudinal direction and frame - shear wall in the transverse direction under the earthquake with peak acceleration 50gal . is conducted . . the following subjects are concerned : the dynamic properties , the torsional effect on the structure , split lever influence on the distribution of the shear forces in the columns , the mechanic of the frame corporation with the bent 在试验研究的基础上，对横向框排架、纵向框架?剪力墙结构的整体厂房进行平扭耦联的地震反应分析，研究了该类结构的动力特性、扭转对整体结构受力的影响、层间变形及扭转效应、框架与排架的内力分配、错层对该层各柱剪力分配的影响、相应的简化计算方法等相关内容供设计时参照。
Among the design of the truss system , it is deeply analyzed that the thought of choosing truss system type , the difficulties in designing truss system and their solutions , the constrain of column to truss chord deformation and the chord modified coefficients used in this case 在桁架体系设计中，笔者主要分析了桁架体系的选型思路；提出了桁架体系的设计难点，并给出了解决方案；分析了柱子约束对桁架弦杆受力的影响，并给出了在手算桁架体系杆件受力时所需要的弦杆内力修正系数。
