The digital rod control system (DRCS) is an important component in nuclear power plants. Thus, the structural integrity of the isolation cabinet of the DRCS should be verified, considering the seismic loading and cooling performance of the heating source of electric equipment. In general, the structural safety and functionality of the DRCS are verified through ground excitation and flow experiments. Numerical structural analysis and CFD analysis provide preliminary assessments of dynamic behavior and temperature distribution of the cabinet in order to establish guidelines for designing experiments. This also reduces time, cost, and design cycles involved in the experimentation.

Response spectrum analysis was adopted in ANSYS for seismic analysis, which gives the peak response of the structure. The analysis was performed based on required response spectra (RRS), which envelop the floor response spectra (FRS). The maximum stresses are less than the allowable stresses, and the deflections meet the requirements. Electric equipment should operate within a limited temperature range for acceptable reliability. In the direct heat removal approach, six fans are installed as heat sink and air is forced through the heat sink by the fan. The cabinet and internal modules should be designed such that adequate ventilation with the fans is provided to maintain the temperature difference between the inside and outside within 5°C. Flow and thermal analyses were carried out by a CFD program, Icepak. As a result of this analysis, the number and the capacity were determined to meet the design requirement.

数字杆控制系统（DRCS）是核电站中的重要组件。因此，应考虑电气设备加热源的地震载荷和冷却性能，验证DRCS隔离柜的结构完整性。总的来说，DRCS的结构安全性和功能性是通过地面激励和流动实验来验证的。数值结构分析和CFD分析可对机柜的动态行为和温度分布进行初步评估，从而为设计实验提供指导。这也减少了实验所涉及的时间，成本和设计周期。

在ANSYS中采用响应谱分析进行地震分析，从而给出结构的峰值响应。基于所需的响应光谱（RRS）进行分析，该响应光谱包围了地板响应光谱（FRS）。最大应力小于允许应力，挠度满足要求。电气设备应在有限的温度范围内运行，以获得可接受的可靠性。在直接排热方法中，安装了六个风扇作为散热器，并且风扇迫使空气通过散热器。机柜和内部模块的设计应使风扇充分通风，以使内部和外部之间的温差保持在5°C以内。流动和热分析由CFD程序Icepak进行。分析的结果，