Effect of Damping Parameters on Seismic Analysis of Nuclear Reactor Coolant Loop
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摘要: 研究了利阻尼参数取值对核电厂反应堆冷却剂系统回路抗震分析的影响。在模型和其他输入参数相同的条件下,分别采用3组瑞利阻尼参数对冷却剂主回路进行抗震计算,并选取典型的支撑载荷结果进行对比分析。对于核电厂冷却剂系统回路模型,随着计算模型的自振频率增大和高频振型参与质量的增大,阻尼参数的取值对计算结果的影响越大。Abstract: The Rayleigh damping parameters and its effect on the seismic analysis for the nuclear power plant reactor coolant loop are studied in this paper. Using the same model and other input parameters, three groups of Rayleigh damping parameters are used to calculate the seismic response of the reactor coolant loop. Typical support loads in the results are selected and analyzed. With the increasing of the natural frequency and effective mass of high frequency of the reactor coolant loop model, greater value of damping parameter has great effect on the calculation results.
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Key words:
- Damping /
- Reactor coolant loop /
- Support load
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