为研究复合材料输电塔架结构的受力性能,对330 k V复合材料输电塔架结构进行了有限元分析,考察了复合材料输电杆塔结构在不同工况下的位移和内力变化情况。研究结果表明:位移控制需要综合考虑断线和大风工况的影响,断线工况对复合材料...为研究复合材料输电塔架结构的受力性能,对330 k V复合材料输电塔架结构进行了有限元分析,考察了复合材料输电杆塔结构在不同工况下的位移和内力变化情况。研究结果表明:位移控制需要综合考虑断线和大风工况的影响,断线工况对复合材料内力的影响要大于其他工况,杆塔总弯矩值较小,塔体以受压为主,内力均匀分布,说明塔身斜度设计合理;杆件的最大应力发生在塔体底部,约200 MPa,塔体复合材料主材不到100 MPa,有较大的安全富裕度,塔体应力满足要求。展开更多
From the perspective of development background,concepts and related policies of ultra-low emission,according to work practice,some issues and difficulties that need to be paid attention to in the environmental impact ...From the perspective of development background,concepts and related policies of ultra-low emission,according to work practice,some issues and difficulties that need to be paid attention to in the environmental impact assessment of ultra-low-emission thermal power projects were discussed from the aspects of evaluation criteria,evaluation grade and scope,pollution control technical lines,environmental benefit accounting,and total emission control,and corresponding recommendations were put forward.展开更多
文摘为研究复合材料输电塔架结构的受力性能,对330 k V复合材料输电塔架结构进行了有限元分析,考察了复合材料输电杆塔结构在不同工况下的位移和内力变化情况。研究结果表明:位移控制需要综合考虑断线和大风工况的影响,断线工况对复合材料内力的影响要大于其他工况,杆塔总弯矩值较小,塔体以受压为主,内力均匀分布,说明塔身斜度设计合理;杆件的最大应力发生在塔体底部,约200 MPa,塔体复合材料主材不到100 MPa,有较大的安全富裕度,塔体应力满足要求。
基金Supported by Special Project for Research on Prevention and Control of Air Pollution from Fire Coal in 2018 of Ministry of Ecology and Environment of the People’s Republic of China(2018A030)
文摘From the perspective of development background,concepts and related policies of ultra-low emission,according to work practice,some issues and difficulties that need to be paid attention to in the environmental impact assessment of ultra-low-emission thermal power projects were discussed from the aspects of evaluation criteria,evaluation grade and scope,pollution control technical lines,environmental benefit accounting,and total emission control,and corresponding recommendations were put forward.