求达人帮翻译！ - 范文无忧网

[请健身达人帮我制定一份健身计划谢谢]去家，做完热身，第一做力量的练习，哑铃根据你自己的情况做，一般一个项目做4组，每组可以平均数量或递增做。 1.标准的正手握单杠，引体向上必须能到一组10个做4组，每组中间停顿不超过4...+阅读

Pipeline transport into space, railway, highway, water to keep such as one of the five modes of transportation. But with the increasing length of service pipe and the processing manufacture and so on aspects of the problem, there are inevitably pipeline way or another defect, influence the service life of the pipeline. Line reliability analysis is the main content of the pipeline integrity evaluation of one. Pipeline blast pressure as evaluation residual strength, part of the domestic and foreign experts and scholars have been an important part of the study of. Blasting failure theory is that even if the pipe to the overall yield, all the plastic, also can't think that already failure, only when the pressure increases to a certain value, due to increased deformation, make wall thickness thinning, carrying capacity is reduced, pipeline blast it happen. This paper first containing defects of buried pipelines on the simplified model defects, according to data to determine the formula for calculating the calculated under the condition of the blasting pressure. And through the ANSYS finite element software simulation. Change the defect depth and defects after the length of numerical, the application of ANSYS simulation calculation indicates that respectively and pipeline rupture pressure depth and defects of the defects length relationship, and they are summarized. Finally, based on the aging of the pipeline of failure mode, and carry out the aging of the pipeline corrosion reliability analysis, the system the research of the defective initial depth of seven parameters on the d aged pipeline system reliability (i.e. failure probability) and the influence of sensitivity analysis; Is proposed based on a Monte-Carlo's ageing pipeline failure probability evaluation model.