Product

Berthing velocity analysis of seagoing vessels over 30,000 dwt (2022)

489 -

Section 4.2.3 of PIANC WG 33 (2002) ‘Guidelines for the Design of Fender Systems’ advises, “Designers must consider that the design values for the approach velocity should be close to the expected actual berthing velocity. It is the task of the designer to obtain data on the local conditions and seek out vessel operators, port engineers, ship owners etc. to gain insight into the applicable conditions and to decide on the most likely and/ or appropriate approach velocity. ”

The available data on berthing speeds dates back to the 1970s and was derived from a limited number of vessels. With a change in naval architecture the dimensions of vessels are now much larger. Many of these vessels are manoeuvred by highly powered tugboats or have large bow thrusters or stern thrusters adding to the manoeuvrability. Additionally portable navigation aids, communication tools and other developments also assist during the berthing procedure of a vessel. Based on these developments there was a need to investigate and update the knowledge of the actual berthing velocities exhibited in ports around the world.

The objectives of this WG 145 were to review vessel berthing velocity data from various ports around the world. This design parameter has the greatest influence on the berthing energy and subsequent fender systems. Consequently, a great deal of data on berthing velocities was collected and a proposal of design values was made by statistically examination of the available data.

The berthing speeds which have been recorded can be used by PIANC Working Group 211 ‘Update of WG 33 – Guidelines for the design of fender systems’ to update the WG 33 report ‘Guidelines for the design of Fender Systems’. Additionally, the data also gives port authorities, terminal operators, consultants and related companies the possibility of improving the design of marine structures by themselves in the future through recent data acquisitions and additional measurements.

The scope of this Working Group report is limited to the review and analysis of certain vessel berthing velocity data as described above.

During the meetings of this Working Group several other issues were raised in relationship to the design and independent testing of fenders, the influence of handling the berthing ships on fender design, and the design of fenders for berths in restricted channels and/or basins.

Furthermore, the guidance with regard to the performance of fenders, independent test methods of rubber fenders and partial factors derived using reliability methods should be considered in the design method for fender design.

These aspects have not been covered in Working Group 145 and will be discussed in the report of Working Group WG 211, currently (2020) in preparation

 

Join the conversation...

Login or register to write comments and join the discussion!
MH
Mike Harrison United Kingdom
on 18 August 2022, 17:39 UTC

Great to see you publicising the work of PIANC WG145. As co-chairman I can say how dedicated and through the entire committee were in investigating berthing speeds with some very interesting findings that were not entirely anticipated, but borne out but the thousands of sets of data analysied. The report is free to PIANC members and the organisation is always looking for new members with skills to contribute - including pilots who are the key ingredient that bridge the gap between naval architects and civil engineers. Any questions and I'll be happy to do my best to answer, of point you in the direction of someone who can. Thanks for promoting the WG145 report.
1

Nasir Khan Saudi Arabia
on 17 August 2022, 17:29 UTC

The book is free of charge to deliver or have price demand?

If it's free to send pdf file then I need.
0

Read more...

Video Wind Balance on straight track with theory

published on 24 November 2020

Wind Balance on straight track - using SAMMON to learn the theory and the effect of rudder and drift to reach the balance in steady state equilibrium conditions on straight track. Limits of steerability will be shown and how turn under strong wind.

1

Video Boston Pilots

published on 29 July 2024

I'm Bradley Jay, long time Boston broadcaster, and I also love to produce videos of interesting people doing interesting things. Meet the Boston Pilots They do one of the the coolest jobs ever .

0

Video Mindfulness in Shipping Webinar

published on 24 July 2020

In this webinar, Rev. David Reid, AFNI looks at why we need to learn this skill and put it to work to promote safety at sea and the wellbeing of our colleagues. Are we mind full or mindful?

1

Video EfficientFlow final conference June 4 2021

published on 10 June 2021

Project results in detail. Efficient port flow using the Port Activity App in the ports of Gävle and Rauma. Sharing time stamps making planning easier for all involved actors. Efficient ship Flow by using a Route distribution service helping pilots better plan meeting points in narrow fairways, saving some fuel but more importantly increasing safety.

0

Article Trusteddocks: Bottleneck at Shipyards and Resulting Price Increases Ahead

by trusteddocks.com GmbH - published on 30 June 2020

This market intelligence allows all interested parties to measure the shipyards industry and to follow flows in demand and supply, enabling shipping companies’ management to make informed, fact-based decisions on docking requirements.

0

Article Vessel Review by Baird Maritime: "DPC Dodder" - Ireland

by Baird Maritime - published on 29 August 2022

Dublin Port Company (DPC) of Ireland has taken delivery of a new pilot boat from UK-based Goodchild Marine Services. DPC Dodder is the second pilot boat in a series to be built by Goodchild Marine for the same owner.

1

Video Bulk Carrier sailing from Liverpool Docks stern-first

published on 17 July 2020

Bulk Carrier "Jasmine A" leaving Gladstone lock stern-first with 3 tugs

0

Video Fremantle Ports Pilot Vessels Launch 2024

published on 15 October 2024

Fremantle Ports proudly launched two new locally built pilot vessels that will facilitate efficient ship movements fundamental to the operations of the port.

0

Video Ice going pilot boat by Baltic Workboats

published on 3 June 2020

Baltic Workboats 16m ice going diesel electric pilot boat

0