为满足海洋牧场环境监测需求，研制了一种海参底播养殖环境理化指标与视觉监测平台。通过构建数值模型，进行了结构强度分析。基于三维势流理论，建立了风浪流耦合条件下的平台运动响应模型，并利用AQWA软件分析最大重心幅度变化规律。通过优化系泊参数，实现了系泊系统的优化。结果显示，在风浪流耦合作用下，平台重心的最大幅度值被确定为危险工况。当导缆孔位置降低至水下0.5 m时，平台的横摇、纵摇和艏摇幅值分别减少50.6%、61.7%和43.4%；当缆绳长度降至70 m时，这些幅值分别减少28.4%、47.7%和32%。优化后的系泊系统安全系数为1.89，高于允许安全标准1.67。为验证数值模型的准确性，在台风“格美”影响期间进行了实测。海上实测横摇、纵摇、艏摇的最大角度分别为-6.399°、-1.329°和0.774°，与模拟结果相差约2°。模拟与实测的系泊力系数分别为3.63和3.92，且升降趋势基本一致，验证了数值模拟的准确性和安全性。本研究结果为海洋牧场环境监测平台的设计与推广应用提供了理论和技术支撑。

To meet the environmental monitoring needs of marine ranching, a physical and chemical indicators and visual monitoring platform for sea cucumber bottom sowing culture environment was developed. By constructing the numerical model of the platform, the structural strength analysis of the platform is carried out. Based on the three-dimensional potential flow theory, the platform motion response model under the coupling condition of wind, wave, and current is established. The AQWA software is used to analyze the variation law of the maximum center of gravity amplitude, and the mooring system optimization is realized by optimizing the position of the guide hole and the length of the mooring line. The research shows that under the condition of ten-level wind and wave when the angles of wind, wave, and inflow are 90 °, 135 °, and 90 °, the motion range of the center of gravity of the platform reaches the maximum and is in the most dangerous state; when the position of the guide cable hole is reduced to 0.5 m underwater, the roll, pitch, and yaw amplitudes of the platform are reduced by 50.6 %, 61.7 % and 43.4 %, respectively. When the cable length is reduced to 70 m, these amplitudes are reduced by 28.4 %, 47.7 %, and 32 %, respectively. The mooring safety factor is 1.89, which meets the design requirements. To further demonstrate the accuracy of the numerical model of the platform, the motion response and mooring force of the platform were measured during the influence of typhoon ' Gaemi'. The test results show that under the coupling of wind, wave, and current, the maximum angles of roll, pitch, and yaw of the platform are − 4.829 °, − 0.934 °, and 0.610 °, respectively. The maximum measured angles at sea are − 6.399 °, − 1.329 °, and 0.774 °; the simulated and measured mooring force coefficients of the platform are 3.63 and 3.92, respectively, which are consistent with the lifting trend of the numerical simulation results. The motion response error is less than 2 °, which verifies the good safety of the platform. It provides theoretical and technical support for the development and application of marine ranching environmental monitoring platforms.