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An offshore crane shock absorber is a gas spring with hydraulic damping used to reduce dynamic loads during offshore lifting. The lifting capacity of the offshore crane can be increased significantly during lifting in high sea states if a shock absorber is fitted. 〔(The Engineers Guide ) Safelink AS〕 ==Crane design load== Offshore lifting capacity is governed by classification society rules. The fundamental rule is that the design load should not be exceeded. The design load is given by: Where: - Crane design load - Dynamic coefficient - Safe working load - Acceleration of gravity The classification societies require that ≥1.3 for offshore cranes. This means that cannot exceed even for platform lifts. 〔 EN13852-1:2004 Cranes - Offshore cranes - Part 1: General - purpose offshore cranes 〕 〔 DNV Standard For Certification No. 2.22 Lifting Appliances October 2011〕 〔 API 2C 7th Ed. Specification for Offshore Pedestal-mounted Cranes〕 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Offshore crane shock absorber」の詳細全文を読む スポンサード リンク
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