摘要
针对重轨淬火工艺难以制定的问题,对重轨淬火的应力场及其有限元模型的建立进行了分析,并基于Visual C++开发了针对重轨淬火应力场分析的仿真软件。在实际应用中,只需要在该仿真软件上输入相应的参数,包括重轨淬火的材料热物性、工况条件等,该仿真软件就会在后台自动调用有限元软件对重轨淬火过程进行有限元数值模拟,获得其应力场分布,通过对比分析得到最佳加热时间,并制定出较优的重轨淬火工艺。仿真后,通过对比3种工况的分析结果表明:加温时间设置为40 s,保温时间设置为25 s,淬冷时间设置为35 s是较优的重轨淬火工艺路线,为不了解有限元软件甚至没有使用过有限元软件的重轨淬火工作人员对重轨淬火工艺进行分析时提供了方便,对实际生产具有重要意义。
Aiming at problem of the quenching process is difficult to formulate for the heavy raft, the stress field and the establishment of the finite element model of the heavy rail quenching were analyzed, and based on the Visual C ＋ ＋ , the simulation software that analysis the heavy rail quenching stress field was development. In practical application, only need to input the corresponding parameters in the simulation software, including rail quenching thermal properties of materials, conditions, the software would automatically call the finite element software to simulate the quenching process in the background, then obtained the stress field distribution, through comparative the resuh of analysis to get the best time of heating, and then developed better quenching process. After simulation, by compared the three kinds of conditions, the results indicate that ： when the heating time is set to 40 s, the holding time is set to 25 s and the quenching time is set to 35 s, which is the better quenching process. Provided the convenience for the quenching staff who do not understand the finite element software even didnt use the finite element software to carry on the analysis for the heavy rail the quenching process, and there is an important significance for the industrial production.
出处
《机电工程》
CAS
2014年第7期854-859,869,共7页
Journal of Mechanical & Electrical Engineering
基金
国家自然科学基金资助项目(51105283)
武汉科技大学绿色制造和节能减排科技研究中心基金资助项目(B1004)
关键词
重轨淬火
有限元法
应力场
数值模拟
rail quenching
finite element method
stress field
numerical simulation
