發(fā)布時(shí)間：2018-03-20 12:06

  本文選題：可傾瓦軸承　切入點(diǎn)：瓦塊數(shù)目　出處：《汽輪機(jī)技術(shù)》2016年04期 　論文類(lèi)型：期刊論文

【摘要】：借鑒國(guó)內(nèi)外大型可傾瓦軸承設(shè)計(jì)技術(shù)特點(diǎn),圍繞實(shí)際大型可傾瓦軸承設(shè)計(jì)過(guò)程中急需解決的軸承溫升、承載力與穩(wěn)定性的設(shè)計(jì)難點(diǎn)與耦合問(wèn)題,采用流固熱耦合模型和多場(chǎng)分析技術(shù),對(duì)不同瓦塊數(shù)目變化下可傾瓦軸承的溫度場(chǎng)、壓力場(chǎng)、最小油膜厚度以及剛度、阻尼等靜動(dòng)特性進(jìn)行計(jì)算分析,結(jié)果表明:塊數(shù)目增加,可傾瓦軸承最大油膜壓力和最高溫度略有增加,最小有油膜厚度明顯減小,導(dǎo)致軸承承載能力明顯下降,但軸承剛度、阻尼明顯增大,這對(duì)提高穩(wěn)定性有利,實(shí)際中可傾瓦軸承瓦塊數(shù)目的確定應(yīng)根據(jù)設(shè)計(jì)要求和工況條件進(jìn)行具體分析。
[Abstract]:Referring to the technical characteristics of large tilting pad bearings at home and abroad, the design difficulties and coupling problems of bearing temperature rise, bearing capacity and stability are urgently needed to be solved in the design process of practical large tilting pad bearings. The temperature field, pressure field, minimum oil film thickness, stiffness, damping and other static and dynamic characteristics of tilting pad bearing are calculated and analyzed by using fluid-solid-heat coupling model and multi-field analysis technique. The results show that the number of blocks increases, and the temperature field, pressure field, minimum oil film thickness, stiffness, damping and other static and dynamic characteristics of tilting pad bearing are calculated and analyzed. The maximum oil film pressure and maximum temperature of tilting pad bearing increase slightly, and the minimum oil film thickness decreases obviously, which leads to the obvious decrease of bearing bearing load capacity, but the stiffness and damping of bearing increase obviously, which is beneficial to the improvement of stability. In practice, the number of tilting pad bearing tiles should be analyzed according to the design requirements and working conditions.
【作者單位】： 西安石油大學(xué)機(jī)械工程學(xué)院;哈爾濱汽輪機(jī)廠有限責(zé)任公司;西安交通大學(xué)現(xiàn)代設(shè)計(jì)與轉(zhuǎn)子軸承系統(tǒng)教育部重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目“通流力與小間隙力耦合高參數(shù)轉(zhuǎn)子系統(tǒng)多學(xué)科協(xié)同設(shè)計(jì)建模與深知識(shí)獲取研究”項(xiàng)目(編號(hào):51405385)資助
【分類(lèi)號(hào)】：TH133.3

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本文編號(hào)：1639009