IHB Ship Design в числа – 15 години опит, 80 инженери, 400+ завършени проекта
We have completed another interesting project for the development of concept and basic design of a Modular Pontoon platform. The planned area of operation of the vessel is the coastal waters of the Black Sea.
This case study introduces the steps involved in the design process and outlines the specifications of the task. We’ve been asked to create the concept design as a first step and thereafter proceed with the basic design. During the whole process one of the most important understanding was ensuring maximum safety while developing the most efficient design.
Our Hull and Steel Outfit department was trusted with the engineering of the:
Our Electrical and Automation department had the task to design:
2. Overview of the technical specifications
The floating platform is a modular pontoon platform with spud pols. The platform consists of 25 single pontoons, divided into two types – Type I and Type II (20 pcs. – Type I and 5 pcs. – Type II)
2.1. Main dimensions:
Overall dimensions of the assembled platform:
Pontoon dimensions Type I:
Pontoon dimensions Type II:
Weight of a single pontoon Type 1 – 7.852 t
Weight of a single pontoon Type 2 – 7.293 t
Total weight of the assembled platform: 193.49
Our engineers wanted to develop the most efficient concept and this is the reason for choosing these particular dimensions of the single pontoons. The size of the pontoons allows:
There are also 4 spud pols, powered by hydraulics, which are attached to the platform. The pylons have a maximum length of 15.0 m, are composed of sections with a length of about 3.0 m, this allows them to be assembled with a suitable length in each case. The maximum depth at which the platform can be used for anchoring is about 11.0 m.
The vessel does not have permanent crew accommodation as well as a permanent crew. During operation, it is serviced by about 5 – 10 people, depending on the task performed.
3. Loading Scheme
On the assembled platform it is planned to place:
* Total weight
4. Locking devices
5. Additional elements
All these elements are fixed with removable mechanical connections, which allows within certain limits to change their location on the platform depending on needs.
6. Stability and Strength calculations
One of the most important parts of our involvement in this project was the Forecast Stability in operation
Due to the reduced number and volume of the single pontoons, the stability of the platform was checked when the crane was working in the forward direction (according to the general arrangement) and on the starboard side. The weight, height, and distance of the lifted load are in accordance with the permissible requirements for the operation of the crane specified in the Technical Data.
Our engineers performed stability calculations for two loading scenarios. The purpose of the calculations is to determine the most appropriate positioning of the required equipment.