Reference project in the

Laminate optimisation for Fassmer’s hybrid boat

In recent decades, the maritime industry has seen a rapid increase in the use of composite materials due to their obvious advantages over metallic materials.

Due to the direct impact on human life in emer­gency situ­a­tions, special require­ments apply to the struc­tural integrity of the boat. At the same time, the design space cannot be changed or expanded at will because of various boundary condi­tions.

The task

The Fassmer ship­yard in northern Germany commis­sioned us to reduce the struc­tural weight of a hybrid boat that can be used either as a tender or as a lifeboat. The aim was to achieve simpler and more cost-effec­tive produc­tion and save resources while main­taining the same quality, i.e. constant strength and stiff­ness.

In addi­tion, certi­fi­ca­tion and produc­tion docu­ments were to be prepared and submitted to the ship­yard.

The chal­lenges and solu­tions in detail

  • Severe limi­ta­tions in the design of the struc­ture due to the given boundary condi­tions in connec­tion with the manu­fac­turing process.
  • The given geom­etry could not be altered at will due to various spec­i­fi­ca­tions and regu­la­tions.
  • Due to the direct impact on human life in emer­gency situ­a­tions, strict require­ments applied to the struc­tural integrity of the boat.
  • Consid­er­a­tion of the increased complexity due to a new type of movable roof struc­ture.
  • High demands in partic­ular on the imple­men­ta­tion of opti­mi­sa­tion in order to obtain a solu­tion that is readily manu­fac­turable.
  • The struc­tural weight was to be minimised in order to save building time and costs. The stiff­ness and strength of the boat were used as design para­me­ters to verify the quality of the results.

Our know-how

The following compe­tences at ar engi­neers led to success in this project:

  • High exper­tise in the design and real­i­sa­tion of small fibre-composite boats.
  • Very good under­standing of fibre-composite mate­rials in boat and ship building.
  • Expe­ri­enced eye on the feasi­bility of the compo­nents despite complex lami­nate layups.
  • Exten­sive know-how for numer­ical opti­mi­sa­tion with Ansys.
  • Devel­op­ment and use of auto­mated simu­la­tion and result eval­u­a­tion in order to be able to react quickly to changing require­ments from the customer.
  • Our direct and frequent consul­ta­tions with the customer enabled the project to run smoothly.

Our way

Our expe­ri­ence in handling complex projects coupled with our light­weight design exper­tise and knowl­edge of auto­mated numer­ical opti­mi­sa­tion helped us to meet our client’s require­ments in the best possible way while meeting tight time­lines and budgets.

Customer quotes – their goals reached more easily.

With the increasing focus on sustain­ability, light­weight solu­tions are also becoming increas­ingly impor­tant in ship and boat building. ar engi­neers supports us in meeting these require­ments and maximising the poten­tial of our prod­ucts to be designed in a light­weight way. This strengthens our market posi­tion and makes our prod­ucts lighter, safer and more envi­ron­men­tally friendly.

Jan Henkel, Fr. Fassmer GmbH & Co. KG
Vice Pres­i­dent Fassmer Maritime

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