tailieunhanh - Ship Hydrostatics and Stability 2010 Part 9

Tham khảo tài liệu 'ship hydrostatics and stability 2010 part 9', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 198 Ship Hydrostatics and Stability Additional regulations mentioned in this chapter are a code for small workboats issued in the UK and codes for internal-navigation vessels issued by the European Parliament and by the Swiss Parliament. Examples Example - Application of the IMO general requirements for cargo and passenger ships Let us check if the small cargo ship used in Subsection meets the IMO general requirements. We assume the same loading condition as in that section. The vessel was built four decades before the publication of the IMO code for intact stability therefore it is not surprising if several criteria are not met. Table contains the calculation of righ ting-arm levers and areas under the righting-arm curve. Figure shows the corresponding statical stability curve. The areas under the righting-arm curve are obtained by means of the algorithm described in Section . The analysis of the results leads to the following conclusions 1. The area under the GZefi curve up to 30 is m rad less than the required . The area up to 40 equals mrad less than the required mrad. The area between 30 and 40 equals mrad more than the required mrad. Table Small cargo ship - the IMO general requirements Heel angle 4 m KG Ip sin b m GZeff m Area under righting arm m2 Intact stability regulations I 199 2. The righting arm lever equals m at 30 it meets the requirement at .