电力勘测设计
電力勘測設計
전력감측설계
ELECTRIC POWER SURVEY
2015年
8期
38-41
,共4页
烟风道%应力应变%荷载因子%支座包角
煙風道%應力應變%荷載因子%支座包角
연풍도%응력응변%하재인자%지좌포각
gas and air duct%stress and strain%load factor%supports’ angle
应用有限元分析软件ANSYS，对直径大于4020 mm的一组圆形大型截面烟风道设计计算进行验证，考察道体的应力应变分布及屈曲分析的荷载因子，分析支座包角对支座能承受许用荷载的影响。结果表明，加固肋与支座连接处局部应力最大，道体失稳区域集中在道体顶部加固肋之间，增大支座包角(不大于180°)可提高支座能承受的最大荷载。
應用有限元分析軟件ANSYS，對直徑大于4020 mm的一組圓形大型截麵煙風道設計計算進行驗證，攷察道體的應力應變分佈及屈麯分析的荷載因子，分析支座包角對支座能承受許用荷載的影響。結果錶明，加固肋與支座連接處跼部應力最大，道體失穩區域集中在道體頂部加固肋之間，增大支座包角(不大于180°)可提高支座能承受的最大荷載。
응용유한원분석연건ANSYS，대직경대우4020 mm적일조원형대형절면연풍도설계계산진행험증，고찰도체적응력응변분포급굴곡분석적하재인자，분석지좌포각대지좌능승수허용하재적영향。결과표명，가고륵여지좌련접처국부응력최대，도체실은구역집중재도체정부가고륵지간，증대지좌포각(불대우180°)가제고지좌능승수적최대하재。
Based on finite element analysis software ANSYS, checking the design and calculation of gas and air duct which diameter is larger than 4020mm, studying the stress and strain distribution in gas and air duct and load factor in buckling analysis, analyzing the the impact of supports’ angle on allowable load. The results show the greatest local stress occurs on the joints of reinforced rib and supports, local buckling regions focus on the top of duct, and distribute on the center of the reinforcement ribs, increasing supports’ angle (no more than 180°) can increase the maximum load bearing of supports.
