MEM35
Marine Engineers Messenger Volume 2 Issue 35
Marine Engineers Messenger Volume 2 Issue 35
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SOFTWARE<br />
PRIMESHIP-HULL FOR BOX SHIPS RELEASED<br />
ClassNK has released the latest version of its structural design support software for container carriers.<br />
PrimeShip-HULL for Container Carriers consists of prescriptive calculation software and direct strength<br />
assessment software and offers improvements in the quality and efficiency of ship design.<br />
It includes a prescriptive calculation element that enables designers to perform assessments for structural<br />
strength requirements such as yield strength and fatigue strength assessments as specified in ClassNK’s Rules<br />
for the Survey and Construction of Steel Ships, in addition to longitudinal strength requirements specified in<br />
IACS Unified Requirements S11A. It also features a function to create a model of transverse members as well as<br />
longitudinal members, and a function to assess outside the cylindrical part of hull structure including the fore<br />
and aft part.<br />
A direct strength assessment feature includes a function for the torsional strength assessment of the hull.<br />
The updated software, in response to latest rules, enables designers to perform torsional strength<br />
assessments by superimposing stress components generated by working hull girder load on an FE model of an<br />
entire ship.<br />
ClassNK’s Dr. Toshiro Arima, Director of Rule Development Division, said: “To promote container carrier<br />
safety, ClassNK released amendments to its Rules and Guidance for the Survey and Construction of Steel Ships<br />
on 1 June 2017. In a further demonstration of its unwavering commitment to safety, ClassNK updated<br />
PrimeShip-HULL for Container Carriers to incorporate these latest rule amendments. The software update also<br />
including various improvements based upon users’ feedback will further increase the efficiency and quality of<br />
container carrier structural design.”<br />
RULES & REGULATIONS<br />
NEW BV RULES SUPPORT HYBRID POWER TAKE-UP<br />
French classification society Bureau Veritas has issued a new chapter to rules for electric and hybrid power<br />
solutions.<br />
The new notations power management (PM), power back-up (PB) and zero emission (ZE) standards are<br />
aimed at encouraging the wider uptake of energy storage systems (ESS).<br />
"Industry uptake of hybrid and battery technology has been driven by environmental regulation. But owners<br />
are also finding performance benefits and, for some operations, significant financial benefits seem likely –<br />
particularly as the availability of renewable energy increases,” said Martial Claudepierre, Bureau Veritas<br />
Business Development Manager.<br />
Innovation has been led by the cruise and ferry sector. However, Claudepierre believes wider adoption is<br />
being anticipated.<br />
Electric power provided by an ESS can be used to reduce local air emissions when in proximity to centres of<br />
population. It can also be used when a ship is in port, during manoeuvring or alongside or in emission control<br />
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