特黄三级爱爱视频|国产1区2区强奸|舌L子伦熟妇aV|日韩美腿激情一区|6月丁香综合久久|一级毛片免费试看|在线黄色电影免费|国产主播自拍一区|99精品热爱视频|亚洲黄色先锋一区

兩種材料旋翼軸低周疲勞試驗(yàn)分析

  • 打印
  • 收藏
收藏成功


打開文本圖片集

摘  要:在不改變結(jié)構(gòu)尺寸的情況下,為驗(yàn)證鈦合金TC18是否可以替代傳統(tǒng)材料15-5PH應(yīng)用于直升機(jī)旋翼軸,該文對(duì)2種材料的旋翼軸進(jìn)行試驗(yàn)對(duì)比分析,結(jié)果表明TC18材料的旋翼軸低周疲勞壽命較低。因此當(dāng)選材為TC18時(shí),需優(yōu)化結(jié)構(gòu)特征,提升疲勞壽命裕度,才能滿足壽命要求。

關(guān)鍵詞:旋翼軸;TC18;15-5PH;疲勞壽命;鈦合金

中圖分類號(hào):V275.1      文獻(xiàn)標(biāo)志碼:A          文章編號(hào):2095-2945(2023)19-0071-04

Abstract: In order to verify whether titanium alloy TC18 can replace the traditional material 15-5PH to be used in helicopter rotor shaft without changing the structure size, the rotor shafts of the two materials are tested and compared in this paper. the results show that the low cycle fatigue life of TC18 material is low. Therefore, when TC18 is used, it is necessary to optimize the structural characteristics and improve the fatigue life margin in order to meet the life requirements.

Keywords: rotor shaft; TC18; 15-5PH; fatigue life; titanium alloy

旋翼軸是直升機(jī)動(dòng)力裝置最關(guān)鍵的零件之一,其連接主減速器和旋翼,傳遞旋翼升力和功率,其工作的可靠性直接影響飛機(jī)的安全[1]。(剩余4228字)

目錄
monitor