本文選題：感應(yīng)加熱 + 數(shù)值模擬��； 參考：《河北工業(yè)大學(xué)》2015年碩士論文

【摘要】：隨著工業(yè)生產(chǎn)要求的提高,金屬零件的性能和可靠性日益成為人們?cè)絹碓疥P(guān)注的因素,而金屬零件的性能指標(biāo)和質(zhì)量除了材料成分特性外,更與其加熱技術(shù)密切相關(guān)。目前感應(yīng)加熱在金屬零件的加工和熱處理等方面得到了廣泛的應(yīng)用,因?yàn)槠渚哂屑訜嵝矢?控制方便等優(yōu)點(diǎn)。感應(yīng)加熱技術(shù)的發(fā)展離不開感應(yīng)加熱理論的完善和感應(yīng)加熱裝置的優(yōu)化,以及對(duì)加熱過程的深入研究,感應(yīng)加熱理論一直在不斷向前發(fā)展,趨于完善,而感應(yīng)加熱裝置的優(yōu)化離不開對(duì)于感應(yīng)加熱過程的研究,本文是在感應(yīng)加熱有關(guān)原理的基礎(chǔ)上,利用有限元法,實(shí)現(xiàn)了感應(yīng)加熱的數(shù)值模擬,完成了對(duì)感應(yīng)加熱器和工件的電磁場-渦流場-溫度場的耦合分析,通過ANSYS和ANSOFT有限元分析軟件,得到了在不同大小和不同頻率激勵(lì)作用下,工件上的溫度分布以及渦流分布,同時(shí)得到了不同加熱參數(shù)對(duì)于加熱結(jié)果的影響,進(jìn)一步計(jì)算出工件在不同溫度下的等效參數(shù),即感應(yīng)加熱電源負(fù)載支路的等效電感和等效電阻。在分析了以上感應(yīng)加熱參數(shù)對(duì)模擬結(jié)果的影響后,得到了具有工程參考價(jià)值的結(jié)論,一方面為合理選擇加熱參數(shù)提供了理論依據(jù),另一方面還對(duì)合理選擇感應(yīng)加熱電源的功率和頻率,以及對(duì)于其設(shè)計(jì)和優(yōu)化提供了實(shí)際的指導(dǎo),感應(yīng)加熱電源性能的好壞直接決定了加熱結(jié)果的理想化程度,感應(yīng)加熱等效負(fù)載是一個(gè)感性負(fù)載,為了抵消無功的影響,需要給負(fù)載支路添加補(bǔ)償電容,提高電源的利用率,同時(shí)要求電源工作在感性小失諧狀態(tài),這樣一來可以保證電源向負(fù)載輸出最大有功功率,二來可以使功率開關(guān)器件工作在軟開關(guān)狀態(tài),減小器件損耗。感應(yīng)加熱電源的設(shè)計(jì)離不開功率調(diào)節(jié)和負(fù)載頻率跟蹤兩個(gè)環(huán)節(jié),選擇合適的調(diào)功方式,以及對(duì)鎖相環(huán)技術(shù)的進(jìn)一步改進(jìn)將會(huì)極大地提高電源的能指標(biāo)。
[Abstract]:With the improvement of industrial production requirements, the performance and reliability of metal parts have become more and more important factors, and the performance and quality of metal parts are closely related to the heating technology in addition to the material composition characteristics. At present, induction heating has been widely used in metal parts processing and heat treatment, because of its high heating efficiency, easy control and so on. The development of induction heating technology can not be separated from the perfection of induction heating theory and the optimization of induction heating device, as well as the deep research on the heating process. The optimization of induction heating device is inseparable from the study of induction heating process. In this paper, based on the principle of induction heating, the numerical simulation of induction heating is realized by using finite element method. The coupling analysis of electromagnetic field, eddy current field and temperature field of induction heater and workpiece is completed. Through ANSYS and ANSOFT finite element analysis software, the temperature distribution and eddy current distribution on the workpiece under different excitations of different sizes and frequencies are obtained. At the same time, the influence of different heating parameters on the heating results is obtained, and the equivalent parameters of the workpiece at different temperatures, namely, the equivalent inductance and the equivalent resistance of the load branch of the induction heating power supply, are further calculated. After analyzing the influence of the above induction heating parameters on the simulation results, a conclusion with engineering reference value is obtained. On the one hand, it provides a theoretical basis for the rational selection of heating parameters. On the other hand, it also provides practical guidance for the rational selection of power and frequency of induction heating power supply, as well as for its design and optimization. The performance of induction heating power supply directly determines the degree of idealization of heating results. The equivalent load of induction heating is an inductive load. In order to counteract the influence of reactive power, it is necessary to add compensating capacitance to the load branch to improve the utilization of power supply, and at the same time, require the power supply to work in the state of inductive small detuning. In this way, the power supply can output the maximum active power to the load, and the power switch device can work in the soft switching state and reduce the device loss. The design of induction heating power supply can not be separated from two links: power regulation and load frequency tracking. Choosing the appropriate power regulation mode and further improving the phase-locked loop technology will greatly improve the energy index of the power supply.
【學(xué)位授予單位】：河北工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TM924.01

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 林小娥,吳兆磷;固態(tài)高頻感應(yīng)加熱裝置移相調(diào)功方法[J];電工技術(shù)雜志;2000年06期

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本文編號(hào)：2019844