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空氣彈簧的徑向剛度

2014-08-13 09:19 作者:管理員14 來源:未知 瀏覽: 字號:

摘要:空氣彈簧的徑向剛度不僅與其幾何形狀有關,還和空氣囊的結構及其材質有很大關系,而橡膠一簾線膜本身的影響.需通過試驗來確定。 3)多曲囊式空氣彈簧的徑向剛度對于多曲囊式空氣彈簧,橫截面受彎曲和剪切載荷而產生的變形,可以利用力和力矩的平衡關系,將各

        空氣彈簧的徑向剛度不僅與其幾何形狀有關,還和空氣囊的結構及其材質有很大關系,而橡膠一簾線膜本身的影響.需通過試驗來確定。
空氣彈簧的彎曲變形
空氣彈簧的剪切變形
        3)多曲囊式空氣彈簧的徑向剛度對于多曲囊式空氣彈簧,橫截面受彎曲和剪切載荷而產生的變形,可以利用力和力矩的平衡關系,將各曲的變形益加求得。若橫截面總的變形很小時,多曲囊式空氣彈簧的徑向剛度。
公式
 
        由上式看出,空氣彈簧的曲數越多,徑向剛度越小。實際上4曲以上的空氣彈簧,由于彈性不穩定,已不適合于承受徑向載荷的場合。通常,囊式空氣彈簧在承受軸向載荷時,若要利用徑向彈性作用,應使徑向振幅最大不超過空氣囊高度的20%,盡可能在10%以下。
        (2)膜式空氣彈簧
        自由膜式和約束膜式空氣彈簧在徑向載荷作用下的變形情況見圖16.8-13和圖16.8-14。它們的徑向剛度
自由模式與約束模式的徑向變化
公式

自由模式空氣彈簧的系數b
約束模式空氣彈簧的形狀系數b
(責任編輯:laugh521521)
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