| 基于转子热应力模型的舰船汽轮主机转速限制 |
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| 引用本文： | 佟文强,汤旭晶,汪恬,李军,袁成清.基于转子热应力模型的舰船汽轮主机转速限制[J].中国航海,2019(1):29-33. |
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| 作者姓名： | 佟文强 汤旭晶 汪恬 李军 袁成清 |
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| 作者单位： | 武汉理工大学能源与动力工程学院;交通运输部船舶动力工程技术交通行业重点实验室;海军工程大学动力工程学院 |
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| 基金项目： | 湖北省高端人才引领培养计划资助项目(鄂科技通[2012]86号) |
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| 摘 要： | 为避免舰船紧急操纵时汽轮主机转子热疲劳损伤,通常采用限制汽机加速速率将转子热应力控制在许可范围内,然而,限制转速势必影响舰船操控性能。在MATLAB/SIMULINK环境下搭建汽机转子热应力模型,建立汽机转速与转子热应力之间的函数关系,获取热应力临界条件下的转速变化率,制定转速限制策略,并通过在汽机调速模型上模拟改变设定转速,验证分析该转速限制策略的有效性。结果表明:所制定的策略既能保证汽轮主机转子热应力不超限,又可实现转速快速响应车令,有效提升舰船的机动能力。
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| 关 键 词： | 舰船 汽轮主机 转子热应力 转速限制 |
Speed Limit of Steam Turbine with Rotor Thermal Stress Model |
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| TONG Wenqiang,TANG Xujing,WANG Tian,LI Jun,YUAN Chengqing.Speed Limit of Steam Turbine with Rotor Thermal Stress Model[J].Navigation of China,2019(1):29-33. |
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| Authors: | TONG Wenqiang TANG Xujing WANG Tian LI Jun YUAN Chengqing |
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| Institution: | (School of Energy and Power Engineering, Wuhan University of Technology, Wuhan 430063, China;Key Laboratory of Marine Power Engineering & Technology, Ministry of Transport, Wuhan 430063, China;College of Power Engineering, Naval University of Engineering, Wuhan 430033, China) |
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| Abstract: | In emergency operation, the common practice of limiting turbine acceleration to avoid thermal damage to the rotor of steam turbine may interfere the maneuverability of ship. With MATLAB/SIMULINK an optimized speed limit strategy is developed by establishing the rotor thermal stress model, analyzing the functional relation between turbine speed and rotor thermal stress, and tracing speed rate change in critical varying of thermal stress. The proposed strategy is proved applicable in speed-change simulation with turbine speed control model and it may ensure safe rotor thermal stress, achieve rapid response to speed command, and keep ship in good maneuverability. |
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| Keywords: | naval ship steam turbine rotor thermal stress speed limit |
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