[不适定导热反问题理论及其在热处理中的应用研究]周静伟

【不适定导热反问题理论及其在热处理中的应用研究】周静伟.pdf

STUDYONIMPROPERLY-POSEDINVERSEHEAT CONDUCTIONPROBLEMANDITSAPPLICATION INHEATTREATMENT By zhou Jingwei supervisedby ProfessorChengShangmo ProfessorLixijing ProfessorXieTingfan ADissertation SubmittedtotheDegreeEvaluationCommitteeof HuazhongUniversityofscienceandTechnology forthe Degree ofDoctor ofPhi以两种常用介质的淬火过程为例进行了反问题求解,并进行了实测检验,分析了产生误差的 主要原因.最后对全文内容进行总结,并提出尚待深人研究的几个问题 本文的工作对导热反问题理论及淬火冷却介质的科学评定具有较重要的学术意义和实用 价值,某些成果对其它的学科及工程技术也有一定的参考价值。non-stationary stochastic process.The principle of thismethod is presented and a semi empirical formula is proposed by a combination of theoretical analysisand mathematical simulation.lt is shown that the discrepancy between theestimated and exactvalues ofroot-mean-square error is lessthan7 inmostca