Study on Acceleration Load Spectrum Editing of Diesel Engine’s High-pressure Fuel Pipes

doi:10.3969/j.issn.1006-1355.2018.04.007

›› 2018, Vol. 38 ›› Issue (4): 34-38.DOI: 10.3969/j.issn.1006-1355.2018.04.007

Study on Acceleration Load Spectrum Editing of Diesel Engine’s High-pressure Fuel Pipes

Received:2017-11-09 Revised:2017-12-12 Online:2018-08-18 Published:2018-08-18

柴油机高压油管加速载荷谱编辑研究

周帅1，2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2，任燕平1, 2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2，刘冰1，李伟东3，何文运1，2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2

( 1. 内燃机可靠性国家重点实验室，山东潍坊261061；
2. 潍柴动力股份有限公司, 山东潍坊261061；
3. 天津大学内燃机燃烧学国家重点实验室，天津300072 ）

通讯作者: 李伟东

Abstract

摘要：

针对高压油管耐久性试验耗时长的特点，研究高压油管加速疲劳试验在振动试验台上的应用。基于损伤等效原则，提出振动疲劳加速载荷谱编辑方法并对高压油管实测载荷谱进行编辑。对比加速载荷谱与原始载荷谱作用下高压油管疲劳寿命，验证加速载荷谱编辑方法及其在振动试验台上应用的可行性。结果表明：柴油机高压油管疲劳失效属于高周疲劳，其所受载荷中存在大量小载荷循环，将小载荷循环进行删除可保证在失效位置及失效形式一致的情况下，极大程度地缩短疲劳试验时间和成本。

关键词: 振动与波, 柴油机, 高压油管, 加速载荷谱, 等效损伤

CLC Number:

U464

周帅1，2，任燕平1, 2，刘冰1，李伟东3，何文运1，2. 柴油机高压油管加速载荷谱编辑研究[J]. 噪声与振动控制, 2018, 38(4): 34-38.

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Study on Acceleration Load Spectrum Editing of Diesel Engine’s High-pressure Fuel Pipes

柴油机高压油管加速载荷谱编辑研究

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