基于AN SY S有限元分析软件,重点对辽宁阜新五龙矿深部冲击地压进行了数值模拟研究,根据实际开采条件建立了AN SY S有限元模型,通过模拟开采311工作面得到了推采距离为100、200、300及400 m时的顶底板Y向应力等值线图,指出顶板Y向应力...基于AN SY S有限元分析软件,重点对辽宁阜新五龙矿深部冲击地压进行了数值模拟研究,根据实际开采条件建立了AN SY S有限元模型,通过模拟开采311工作面得到了推采距离为100、200、300及400 m时的顶底板Y向应力等值线图,指出顶板Y向应力大小是判断冲击地压是否发生的重要因素,当开采100 m和400 m时工作面迎头位置产生高应力集中区,极易发生冲击地压事故。数值模拟结果表明:阜新五龙矿属于煤体压缩型冲击地压,同时伴有火成岩墙侵入影响。AN SY S有限元数值模拟对深部矿井开采具有一定指导意义。展开更多
Based on the use of finite element method(FEM) software ANSYS in electromagnetism, the electromagnetic processing of single winding 2D transformer and double winding 3D transformer are analyzed fully. Two examples, wh...Based on the use of finite element method(FEM) software ANSYS in electromagnetism, the electromagnetic processing of single winding 2D transformer and double winding 3D transformer are analyzed fully. Two examples, which are 2D static field and constant magnetic field, illustrate that the symbolization color vector pictures and curves obtained by ANSYS are not to achieve with other FEM softwares developed by individuals. For a transformer, the forces born by each winding pie and even each turn are analyzed separately under the conditions of unloading, normal load and short circuit. Especially under the condition of short circuit, there are pushing, pressing, suspending and vibrating between winding turns, and then the total winding is probably damaged. Therefore, the detail results give a basis to further fault diagnosis.展开更多
文摘基于AN SY S有限元分析软件,重点对辽宁阜新五龙矿深部冲击地压进行了数值模拟研究,根据实际开采条件建立了AN SY S有限元模型,通过模拟开采311工作面得到了推采距离为100、200、300及400 m时的顶底板Y向应力等值线图,指出顶板Y向应力大小是判断冲击地压是否发生的重要因素,当开采100 m和400 m时工作面迎头位置产生高应力集中区,极易发生冲击地压事故。数值模拟结果表明:阜新五龙矿属于煤体压缩型冲击地压,同时伴有火成岩墙侵入影响。AN SY S有限元数值模拟对深部矿井开采具有一定指导意义。
文摘Based on the use of finite element method(FEM) software ANSYS in electromagnetism, the electromagnetic processing of single winding 2D transformer and double winding 3D transformer are analyzed fully. Two examples, which are 2D static field and constant magnetic field, illustrate that the symbolization color vector pictures and curves obtained by ANSYS are not to achieve with other FEM softwares developed by individuals. For a transformer, the forces born by each winding pie and even each turn are analyzed separately under the conditions of unloading, normal load and short circuit. Especially under the condition of short circuit, there are pushing, pressing, suspending and vibrating between winding turns, and then the total winding is probably damaged. Therefore, the detail results give a basis to further fault diagnosis.
