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

【摘要】：借鑒國內(nèi)外大型可傾瓦軸承設(shè)計技術(shù)特點,圍繞實際大型可傾瓦軸承設(shè)計過程中急需解決的軸承溫升、承載力與穩(wěn)定性的設(shè)計難點與耦合問題,采用流固熱耦合模型和多場分析技術(shù),對不同瓦塊數(shù)目變化下可傾瓦軸承的溫度場、壓力場、最小油膜厚度以及剛度、阻尼等靜動特性進行計算分析,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,這對提高穩(wěn)定性有利,實際中可傾瓦軸承瓦塊數(shù)目的確定應(yīng)根據(jù)設(shè)計要求和工況條件進行具體分析。
[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)機械工程學(xué)院;哈爾濱汽輪機廠有限責任公司;西安交通大學(xué)現(xiàn)代設(shè)計與轉(zhuǎn)子軸承系統(tǒng)教育部重點實驗室;
【基金】：國家自然科學(xué)基金項目“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)計建模與深知識獲取研究”項目(編號:51405385)資助
【分類號】：TH133.3

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本文編號：1639009