船舶与海洋工程
船舶與海洋工程
선박여해양공정
Naval Architecture and Ocean Engineering
2015年
5期
48-51
,共4页
船舶能效设计指数%恶劣海况%主机最小推进功率%主机功率点选取
船舶能效設計指數%噁劣海況%主機最小推進功率%主機功率點選取
선박능효설계지수%악렬해황%주궤최소추진공솔%주궤공솔점선취
ship energy efficiency design indicator%harsh sea condition%minimum propulsion power%main engine power selection
EEDI(能效设计指数)生效后,为避免装机功率过低,船舶在恶劣海况中失去操纵性而发生危险,IMO(国际海事组织)在第65届环保会(MEPC65)发布了"船舶在恶劣海况下维持操纵性的最小推进功率确定临时导则(2013)".临时导则分为最小功率线方法和简化评估方法对主机功率进行评估.最小功率线评估方法的核心是考核主机在最大转速下可发出的最大功率,参考线通过统计资料回归得到.简化评估方法的核心是船舶在指定的海况条件下,达到规范要求的前进速度,考核主机是否可以发出船舶需要的功率和扭矩.结合一艘散货船的设计案例,研究了导则对主机功率点选取的影响.
EEDI(能效設計指數)生效後,為避免裝機功率過低,船舶在噁劣海況中失去操縱性而髮生危險,IMO(國際海事組織)在第65屆環保會(MEPC65)髮佈瞭"船舶在噁劣海況下維持操縱性的最小推進功率確定臨時導則(2013)".臨時導則分為最小功率線方法和簡化評估方法對主機功率進行評估.最小功率線評估方法的覈心是攷覈主機在最大轉速下可髮齣的最大功率,參攷線通過統計資料迴歸得到.簡化評估方法的覈心是船舶在指定的海況條件下,達到規範要求的前進速度,攷覈主機是否可以髮齣船舶需要的功率和扭矩.結閤一艘散貨船的設計案例,研究瞭導則對主機功率點選取的影響.
EEDI(능효설계지수)생효후,위피면장궤공솔과저,선박재악렬해황중실거조종성이발생위험,IMO(국제해사조직)재제65계배보회(MEPC65)발포료"선박재악렬해황하유지조종성적최소추진공솔학정림시도칙(2013)".림시도칙분위최소공솔선방법화간화평고방법대주궤공솔진행평고.최소공솔선평고방법적핵심시고핵주궤재최대전속하가발출적최대공솔,삼고선통과통계자료회귀득도.간화평고방법적핵심시선박재지정적해황조건하,체도규범요구적전진속도,고핵주궤시부가이발출선박수요적공솔화뉴구.결합일소산화선적설계안례,연구료도칙대주궤공솔점선취적영향.
After theEEDI (energy efficiency design indicator) entered into force, IMO (International Maritime Organization) approved the "Interim Guidelines for determining minimum propulsion power to maintain the maneuverability of ships in adverse conditions" in the 65th Marine Environment Protection Conference (MEPC 65) in order to avoid the danger of ship losing maneuverability in harsh environmental conditions due to insufficient engine power. The interim guidelines evaluate the main engine power according to the minimum power lines method and the simplified assessment method. The core of minimum power lines method is to evaluate the maximum power of the main engine under maximum revolution, with the reference lines obtained from regression of statistical data. The core of the simplified assessment method is to evaluate whether the main engine can deliver the required power and torque under the given sea conditions and forward speed. Taking a bulk carrier as the design example, the influence of interim guidelines on main engine power selection is studied.
