In this paper , on the basis of several discontinuous deformation analysis methods , dda ( discontinuous deformation analysis ) method was researched mainly 本文在对各种非连续变形分析方法进行比较性介绍的基础上，选择其中的dda方法进行了着重研究。
In this paper , the application of discontinuous deformation analysis ( dda ) method to the dynamic stability of a rock slope is discussed with a practical engineering example 摘要基于块体系统非连续变形分析计算模型，结合工程实例分析岩质边坡块体的动态稳定性。
5 . by contrasting and discussing the analysis results above , this paper put forwards proposals that are useful for foundation deformation analysis and improving the test precision of load test 5 、将以上分析结果进行对比讨论，提出了有益于地基变形分析与提高载荷试验测试技术精度的合理建议。
4 . finite element analysis by means of i - deas software , including auto - modeling of finite element analysis model , stress and deformation analysis , contact stress analysis and post processing 4 .应用i - deas软件对行星齿轮传动进行有限元分析。包括有限元分析模型的自动生成，应力应变分析，齿轮接触应力分析，分析结果的后处理。
The ill - posed problems include the ill - conditioned and the rank - deficient ones in geodesy , which exist widely in gps data processing , deformation analysis , geodesy inversion , gravity field continuation downward , and so on 大地测量中的不适定问题包括病态问题和秩亏问题，它广泛存在于gps数据处理、形变分析、大地测量反演、重力场向下延拓等领域。
2 . force and deformation analysis of component of bs305 planetary - gear transmission are proposed as well as gear contact stress analysis . the factors that cause normal and abnormal axial force and their extent are proposed also 2 .对bs305行星变速箱各部件的受力及变形以及齿轮接触应力进行分析；分析了引起正常轴向力及异常轴向力的各种因素和影响程度。
By the static & dynamic triaxial tests on the soil derived from dam and dam base , the article makes research on the soil static & dynamic deformation properties and measured the parameters needed by stress deformation analysis 根据静、动三轴仪对坝体和坝基土料进行的静、动力三轴试验，研究了土料静、动应力变形特性，测定了对坝体进行静、动力应力变形分析所需的参数。
The swelling is the secondary reason for large deformation . by the elasticity - plastic fem analysis and the flow deformation analysis through inspecting system to the rock ii3 , getting that the total deformation is within the quantity set aside 通过对鹧鸪山隧道_ 3围岩变形性状进行弹塑性有限元数值计算并利用监控量测资料进行软岩流变分析，得出其总变形在预留变形量之内。
Generally , the ill - conditioning problem not only exists in global positioning system ( gps ) data processing , surveying adjustment , observation deformation analysis and geodesy inversion , etc , but also its ill effects are very serious 在gps数据处理、工程控制网平差、形变观测分析、大地测量反演等测量数据处理领域，系统的病态性问题是常见的，并且病态性的危害作用非常严重。
5 . software designing about planetary - gear transmission . it consists of calculation of equivalent error of the averaged load component , force and deformation analysis of component , contact stress and bending strength analysis . 6 用vb6 . 0自行开发了行星变速箱计算机辅助分析程序设计，该分析程序主要功能包括均载件的等效误差、各部件的受力及变形分析及齿轮弯曲强度及接触强度校核6
