基于有限元仿真的ANG汽车储气罐优化设计
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摘要
建立了吸附储存天然气(ANG)汽车储气罐的有限元模型,在对其进行静力学分析的基础上进行优化设计。静力学分析结果显示:储气罐固定约束端(上端盖)应力较大,最大应力为349.758MPa,小于许用应力。在两个螺栓固定区域应力较高,围绕螺栓固定区域应力逐渐减少,可见螺栓起到明显的固定作用。对优化后的储气罐进行强度校核,其最大等效应力为382.121MPa,小于材料的最大许用应力。优化后储气罐的质量较原来降低了30%,保形系数为0.864,满足整合因子Conformity Factor不小于0.8的要求。
The finite element model of adsorption gas storage(ANG) automobile gas storage tank is established and optimized based on the static analysis. The static analysis results show that the fixed restraint end(upper end cover) of the gas storage tank is under greater stress, and the maximum stress is 349.758 MPa, less than the allowable stress. The stress is higher in the fixed area of two threads, and decreases gradually around the fixed area of threads. The maximum equivalent stress of the gas storage tank strength check is 382.121 MPa, which is less than the maximum allowable stress of the material. The optimization design shows that the quality of the gas storage tank is significantly reduced by 30% compared with the original one, conformal coefficient is 0.864, meets the requirement of conformity factor 0.8.
The finite element model of adsorption gas storage(ANG) automobile gas storage tank is established and optimized based on the static analysis. The static analysis results show that the fixed restraint end(upper end cover) of the gas storage tank is under greater stress, and the maximum stress is 349.758 MPa, less than the allowable stress. The stress is higher in the fixed area of two threads, and decreases gradually around the fixed area of threads. The maximum equivalent stress of the gas storage tank strength check is 382.121 MPa, which is less than the maximum allowable stress of the material. The optimization design shows that the quality of the gas storage tank is significantly reduced by 30% compared with the original one, conformal coefficient is 0.864, meets the requirement of conformity factor 0.8.
引文
[1] 潘红军,薄瑞峰,沈兴全. ANG汽车储气罐结构优化的研究[J]. 机械设计与制造,2013(11):53-56.
[2] 李娜,佟德辉,李国样.汽车燃气加热与 LNG 发动机联合运行试验[J].农业机械学报,2012, 43(9) :27-30.
[3] 周丽芳,郑斌. 空气压缩机储气罐安全使用条件探讨[J]. 四川化工,2012,15(3):39-42.
[4] 王国栋,邓先伦.我国天然气吸附存储用高比表面积活性炭研究进展[J].生物质化学工程,2012(3):27-32.
[5] 金全洲,曹蛟龙. LNG燃料船储气罐疲劳强度计算[J]. 船舶工程,2013,35(增刊1):36-39.
[6] 杨波,李小森,李茂东,等.储气罐中天然气水合物生成的温度特性研究[J].天然气与石油,2014,32(5):1-4,7.
[7] 吴孟君,管义锋,李岳洋,等.内河双燃料动力货船储气罐支撑结构强度分析[J].价值工程,2015,34(33):114-117.
[8] 连锐,乔栋.某汽车储气罐材料优化设计与研究[J].智能城市,2016,2(7):93.
[9] 卢沛,张吉,李璟,等.储气罐爆破压力数值模拟分析[J].化学工程与装备,2018(9):24-25,20.
[10] 闫伟.带容器法兰中压储气罐的设计分析[J].化学工程与装备,2018(7):196-198.
[11] 张杨.高压储气罐的有限元分析设计[J].石油和化工设备,2017,20(8):22-26.
[2] 李娜,佟德辉,李国样.汽车燃气加热与 LNG 发动机联合运行试验[J].农业机械学报,2012, 43(9) :27-30.
[3] 周丽芳,郑斌. 空气压缩机储气罐安全使用条件探讨[J]. 四川化工,2012,15(3):39-42.
[4] 王国栋,邓先伦.我国天然气吸附存储用高比表面积活性炭研究进展[J].生物质化学工程,2012(3):27-32.
[5] 金全洲,曹蛟龙. LNG燃料船储气罐疲劳强度计算[J]. 船舶工程,2013,35(增刊1):36-39.
[6] 杨波,李小森,李茂东,等.储气罐中天然气水合物生成的温度特性研究[J].天然气与石油,2014,32(5):1-4,7.
[7] 吴孟君,管义锋,李岳洋,等.内河双燃料动力货船储气罐支撑结构强度分析[J].价值工程,2015,34(33):114-117.
[8] 连锐,乔栋.某汽车储气罐材料优化设计与研究[J].智能城市,2016,2(7):93.
[9] 卢沛,张吉,李璟,等.储气罐爆破压力数值模拟分析[J].化学工程与装备,2018(9):24-25,20.
[10] 闫伟.带容器法兰中压储气罐的设计分析[J].化学工程与装备,2018(7):196-198.
[11] 张杨.高压储气罐的有限元分析设计[J].石油和化工设备,2017,20(8):22-26.