焊管
銲管
한관
Welded Pipe and Tube
2015年
10期
53-56
,共4页
有限元分析%凹陷%双凹陷%天然气管道
有限元分析%凹陷%雙凹陷%天然氣管道
유한원분석%요함%쌍요함%천연기관도
finite element analysis%sunken%double sunken%gas pipeline
为了研究凹陷缺陷对输气管道强度的影响，以X70级准610 mm×7.1 mm输气管道为例，通过有限元软件ANSYS针对凹陷缺陷对内压管道的受力状况进行了分析。分析结果表明，凹陷深度对内压管道承载能力影响最大。同时对不同距离的双重凹陷缺陷对内压天然气管道的峰值应力的影响规律进行了研究。研究结果表明，距离大于300 mm的两个凹陷之间无相互作用。
為瞭研究凹陷缺陷對輸氣管道彊度的影響，以X70級準610 mm×7.1 mm輸氣管道為例，通過有限元軟件ANSYS針對凹陷缺陷對內壓管道的受力狀況進行瞭分析。分析結果錶明，凹陷深度對內壓管道承載能力影響最大。同時對不同距離的雙重凹陷缺陷對內壓天然氣管道的峰值應力的影響規律進行瞭研究。研究結果錶明，距離大于300 mm的兩箇凹陷之間無相互作用。
위료연구요함결함대수기관도강도적영향，이X70급준610 mm×7.1 mm수기관도위례，통과유한원연건ANSYS침대요함결함대내압관도적수력상황진행료분석。분석결과표명，요함심도대내압관도승재능력영향최대。동시대불동거리적쌍중요함결함대내압천연기관도적봉치응력적영향규률진행료연구。연구결과표명，거리대우300 mm적량개요함지간무상호작용。
In this paper, in order to research the effect of sunken defects on the strength of gas pipeline, taking X70 grade φ610 mm ×7.1 mm gas pipeline as example, the finite element software ANSYS was used to analyze the force condition on intrinsic pressure pipeline caused from sunken defects. The result showed that the effect of sunken depth on intrinsic pressure pipeline carrying capacity is maximum. In addition the influence rule of double sunken defects with different distances on intrinsic pressure gas pipeline peak stress was investigated. The result showed that no interaction exists between two sunken defects when the distance is greater than 300 mm.
