关键词: 自升式风电安装平台, 入级规范, 舾装数, 临时锚设备

Abstract: The scale of wind power installation units and the calculated equipment number are gradually increasing with the development of large-scale wind turbines, resulting in a very large size and weight of the selected temporary anchor equipment. This not only imposes difficulties to the arrangement of temporary anchor equipment on the ship, but also affects the strengthening of the hull structure and the operation ability of the self-elevating installation units. In order to accurately calculate the Equipment Number (EN) of the self-elevating wind turbine installation unit and reasonably configure the temporary anchor equipment, it studies the EN calculation formula and its requirements in the classification rules for the offshore unit from the classification societies. It also compares the calculation results from the rules of several classification societies. Finally, the safety factor of the anchor chain is checked by using the direct calculation method. A more reasonable EN calculation method is proposed to provide references for EN calculation of similar offshore units.

Key words: self-elevating wind turbine installation unit, classification rules, equipment number, temporary anchor equipment