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强辐射棒料提升翻转机构抗震性分析及优化
周杰1, 史慧民1, 王时龙1, 杨波1, 李海2
1.重庆大学 机械传动国家重点实验室, 重庆 400044;2.中国原子能科学研究院, 北京 102413
摘要:
提升翻转机构是某强辐射棒料后处理系统的关键设备,根据相关设计规范,地震工况下要保证棒料不发生破坏,并且保证机构的安全功能和运行性能正常。为验证机构的抗震性能,采用基于ANASYS Workbench的分析方法,对该后处理系统中包含卷扬机组、钢丝绳、料仓架料仓、翻转小车及上/下导轨在内的提升翻转机构建立有限元模型并进行抗震计算,再根据ASME规范对主要部件及重要螺栓进行了应力评定和强度校核,同时对上导轨安装螺栓数进行了优化。结果显示,优化后的提升翻转机构满足核电抗震设计要求。
关键词:  提升翻转机构  抗震计算  应力评定  优化设计
DOI:10.11835/j.issn.1000-582X.2019.12.002
分类号:TH136
基金项目:中国高校科学基金资助项目(2018CDQYJX0013);教育部创新团队发展计划项目(IRT_15R64)。
Seismic analysis and optimization of lifting-turnover mechanismof strong-radiation rods
ZHOU Jie1, SHI Huimin1, WANG Shilong1, YANG Bo1, LI Hai2
1.The State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044, P. R. China;2.China Institute of Atomic Energy, Beijing 102413, P. R. China
Abstract:
The lifting-turnover mechanism is the key equipment of the post-processing system of the strong-radiation rod. According to the relevant design specifications, it is necessary to ensure that the rods does not break under seismic conditions and that the safety function and running performance of the mechanism are normal. To verify the seismic performance of the mechanism, based on ANASYS Workbench, finite element models of the lifting-turnover mechanism containing a hoist, a steel-wire rope, a silo rack-silo part, a rolling-over vehicle and upper/lower rails in the post-processing system, are established for seismic evaluation. Then, the stress assessment and strength check of the main units and the major bolts are carried out according to ASME codes, and the number of bolts installed on the upper rail is optimized. The simulation results show that the optimized lifting-turnover mechanism meets seismic design requirements of nuclear power plants.
Key words:  lifting-turnover mechanism  seismic calculation  stress assessment  optimal design
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