The pseudostatic method, Newmark method,numerical simulation and method of comprehensive evaluation combined with post-seismic-hazards survey ,experimental research ,probability analysis ,reliability mathematics, and other methods are included.

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In addition, the blank holding force that is required to avoid wrinkle and rupture during conical part deep drawing is researched. The necessity of reasonable blank holding force in pressing is expounded. From the view of mechanical analysis, the wrinkle critical condition of side-wall is derived for the first time by the stress state of side-wall, the main deformation region on blank. According to the critical condition of plastic instability for flange, side--wall, corner of punch on blank, The blank holding force in conical part deep drawing is divided into four different regions within its forming figure. The basic principle of reasonable blank holding force during stamping is summarized and provided. The mathematical model of reasonable blank holding force that avoids the wrinkle and rupture is established and verified by the finite element numerical simulation and the grid experiment method. The result shows that it is accurate and reliable.

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Taking an old gas field in the Sichuan Basin as an example, this paper selected the wells with complete logging suite, and took the core analysis data as the research understructure. On the basis of accurate lithology identification, the log data numerical processing with high precision was completed by applying optimal log interpretation method. The comprehensive reservoir log interpretation was carried Out and a good result was obtained for the fine log processing and interpretation of reservoirs at 10 wells in this old gas field in the Sichuan Basin by use of such a method.

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In this thesis, the experimental investigations, theoretical analysis and numerical simulations are carried out to study the detonation characteristics of fuel-air mixtures, explosion suppressions and venting. The relevant parameters of heterogeneous detonations, explosion suppression and venting are obtained experimentally, and the mechanism is revealed.

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Several numerical algorithms are applied to model the generalized chebyshev filters and diplexers by domestic and foreign researchers based on full-wave analysis. Designers pay much attention to the mode matching method because of its features of high precision and fast simulation speed in passive component design.

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Numerical simulation and optimization of process parameters in fineblanking process;2. As fineblanking 's wide application in different industries, such as auto mobile, aircraft and general mechanicals, the finite element analysis of fineblanking is playing a more and more important role in the process from design to manufacture.

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As fineblankings wide application in different industries, such as auto mobile, aircraft and general mechanicals, the finite element analysis of fineblanking is playing a more and more important role in the process from design to manufacture. Mesh generation is also one of the key techniques of fineblanking numerical simulation.

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Then, this dissertation reviews several composites plate theories in detail and detects their different practicabilities, by some numerical examples of static analysis of composites laminated beams. In this way, we can know their different practicabilities.

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