价值工程
價值工程
개치공정
VALUE ENGINEERING
2015年
20期
130-131
,共2页
张金%逯江%别亦难%周干
張金%逯江%彆亦難%週榦
장금%록강%별역난%주간
套管双耳%有限元%预紧力%HyperMesh
套管雙耳%有限元%預緊力%HyperMesh
투관쌍이%유한원%예긴력%HyperMesh
sleeve ears%finite element%preload%HyperMesh
本文以失效频率很高的接触网零部件套管双耳作为研究对象，简化其力学模型，考虑预紧力、风载、履冰三种载荷因素对套管双耳最大的应力影响。根据实际情况，分12种工况对接触网套管双耳进行数值模拟。研究结果表明，预紧力对套管双耳强度影响较为显著，在实际安装中以2500N为宜。为接触网套管双耳的静强度可靠性研究和设计提供了参考。
本文以失效頻率很高的接觸網零部件套管雙耳作為研究對象，簡化其力學模型，攷慮預緊力、風載、履冰三種載荷因素對套管雙耳最大的應力影響。根據實際情況，分12種工況對接觸網套管雙耳進行數值模擬。研究結果錶明，預緊力對套管雙耳彊度影響較為顯著，在實際安裝中以2500N為宜。為接觸網套管雙耳的靜彊度可靠性研究和設計提供瞭參攷。
본문이실효빈솔흔고적접촉망령부건투관쌍이작위연구대상，간화기역학모형，고필예긴력、풍재、리빙삼충재하인소대투관쌍이최대적응력영향。근거실제정황，분12충공황대접촉망투관쌍이진행수치모의。연구결과표명，예긴력대투관쌍이강도영향교위현저，재실제안장중이2500N위의。위접촉망투관쌍이적정강도가고성연구화설계제공료삼고。
The covering pipe-ear is one of the important components of the overhead contact line system (OCS) for supporting loads. The finite element model of covering pipe-ear was established, as the pre-tightening force, wind load and ice load all have effect on it, the stress distribution law were simulated under 12 kinds of loading conditions. The results show that the pre-tightening force has remarkable influence on covering pipe-ear and 2500N pre-tightening force is appropriate for the aluminum alloy covering pipe-ear. It is useful for the catenary components static strength reliability design.
