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多楔徑向軸承的性能計算——迭代法

2014-09-11 09:01 作者:管理員17 來源:未知 瀏覽: 字號:

摘要:2.3多楔徑向軸承的性能計算 多楔徑向軸承的承載能力與油楔布置方式有關, 載荷正對油楔(圖13. 6-34a)的承載能力比載荷對 著兩油楔之間(圖13.6-34b)的大。 除數值計算外,這種軸承的承載能力計算有兩種 方法,迭代法與近似算法。 2.3. 1迭代法 多楔徑向軸承指

2.3多楔徑向軸承的性能計算
    多楔徑向軸承的承載能力與油楔布置方式有關,
載荷正對油楔(圖13. 6-34a)的承載能力比載荷對
著兩油楔之間(圖13.6-34b)的大。
    除數值計算外,這種軸承的承載能力計算有兩種
方法,迭代法與近似算法。
2.3. 1迭代法
    多楔徑向軸承指定方向的承載能力只能用迭代法
計算。若已知條件為:軸瓦的安裝位置、載荷的作用
方向、軸承的幾何尺寸、油楔偏心距,則根據第2章
部分瓦軸承的性能數據,用迭代法求出給定最小油膜
厚度極限值下的承載能力。迭代法的計算框圖見圖
13.6-35.
多楔徑向抽承的油楔布置方式
多楔徑向軸承迭代法計算框圖
若依此步驟,以一定的步長,找出各個g‘值下
的Oj點位置和承載能力,連接這些點將構成載荷逐
漸增加時的軸心位移軌跡曲線,圖13.6-36為不等長
三楔徑向軸承的軸心位移軌跡曲線。
不等長三楔徑向軸承軸心位移軌跡曲線

(責任編輯:laugh521521)
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