船舶与海洋工程
船舶與海洋工程
선박여해양공정
Shanghai Shipbuilding
2015年
3期
38-43
,共6页
高压蓄压管%双层组合式结构%有限元分析%强度%柴油机
高壓蓄壓管%雙層組閤式結構%有限元分析%彊度%柴油機
고압축압관%쌍층조합식결구%유한원분석%강도%시유궤
high pressure accumulator tube%double-layer combined structure%finite element analysis%strength%diesel engine
高压蓄压管广泛用于船用柴油机共轨系统中，起输送和承载高压燃油的作用，其强度是设计的关键。设计的双层组合式高压蓄压管，相比单层厚壁蓄压管能够承受更高的内部压力，且环向应力较低。通过ANSYS有限元软件对比分析了双层组合式高压蓄压管和单层厚壁蓄压管的环向应力，设计的双层组合式高压蓄压管结构较合理，强度满足设计要求。通过对双层管配合的过盈量的控制，能够控制环向应力的分布，从而使设计的结构和所用的材料达到最佳使用状况。经过理论计算和有限元计算结果的验证，设计的双层组合式高压蓄压管的结构是正确合理的。
高壓蓄壓管廣汎用于船用柴油機共軌繫統中，起輸送和承載高壓燃油的作用，其彊度是設計的關鍵。設計的雙層組閤式高壓蓄壓管，相比單層厚壁蓄壓管能夠承受更高的內部壓力，且環嚮應力較低。通過ANSYS有限元軟件對比分析瞭雙層組閤式高壓蓄壓管和單層厚壁蓄壓管的環嚮應力，設計的雙層組閤式高壓蓄壓管結構較閤理，彊度滿足設計要求。通過對雙層管配閤的過盈量的控製，能夠控製環嚮應力的分佈，從而使設計的結構和所用的材料達到最佳使用狀況。經過理論計算和有限元計算結果的驗證，設計的雙層組閤式高壓蓄壓管的結構是正確閤理的。
고압축압관엄범용우선용시유궤공궤계통중，기수송화승재고압연유적작용，기강도시설계적관건。설계적쌍층조합식고압축압관，상비단층후벽축압관능구승수경고적내부압력，차배향응력교저。통과ANSYS유한원연건대비분석료쌍층조합식고압축압관화단층후벽축압관적배향응력，설계적쌍층조합식고압축압관결구교합리，강도만족설계요구。통과대쌍층관배합적과영량적공제，능구공제배향응력적분포，종이사설계적결구화소용적재료체도최가사용상황。경과이론계산화유한원계산결과적험증，설계적쌍층조합식고압축압관적결구시정학합리적。
High pressure accumulator tubes are widely used in common rail systems of marine diesel engines for transportation and bearing of high pressure fuel oil. The strength of the tubes is the key of design. The proposed double-layer combined high pressure accumulator tube design can bear higher inside pressure and has lower hoop stress than single-layer accumulator tube. ANSYS finite element software is used to compare and analyze the hoop stress between double-layer combined accumulate tube and the single-layer one, the double-layer combined one is found to have better structure, and its strength satisfies the design requirements. Through the interference magnitude control of the double layers, the hoop stress distribution will be controlled, so that the designed structure and material will reach optimal service condition. According to the theoretical and finite element calculation results, the designed double-layer combined high pressure accumulator tube structure is correct and appropriate.
