Postgraduate Diploma in Multihulls, Interference and Dynamic Stability
800-hour online Postgraduate Diploma in Multihulls, Interference and Dynamic Stability. 8 modules covering ISO 12217-2 (stability of sailing craft, including multihulls), ISO 12215-7 (scantlings of multihulls) and Maxsurf. Assigned tutor and open enrolment.
Take the controls.
Run a real engineering trade-off from this field. Move the sliders, watch the model react in real time and beat the challenge.
What you will be able to do
Analyse multihull configurations and their advantages.
Calculate resistance to advance and interference effects.
Apply CFD to the study of multihulls.
Assess the static stability of multihulls in accordance with the standard.
Analyse dynamic stability and motions in waves.
Determine the loads on the transverse structure.
Develop the preliminary design of a multihull.
Who it's for
- Multihull naval architect who wants to specialise in Multihulls, Interference and Dynamic Stability.
- Hydrodynamics engineer who wants to specialise in Multihulls, Interference and Dynamic Stability.
- Stability engineer who wants to specialise in Multihulls, Interference and Dynamic Stability.
- CFD engineer who wants to specialise in Multihulls, Interference and Dynamic Stability.
- Catamaran designer who wants to specialise in Multihulls, Interference and Dynamic Stability.
- Naval structures engineer who wants to specialise in Multihulls, Interference and Dynamic Stability.
- Graduates in engineering or science who seek to enter the recreational boating sector.
What you'll work with
- ISO 12217-2 (stability of sailing craft, including multihulls)
- ISO 12215-7 (scantlings of multihulls)
- HSC Code 2000 (high-speed craft)
- IS Code 2008 (intact stability)
- Directive 2013/53/EU (recreational craft)
- ITTC Recommended Procedures (resistance)
8 modules · 800 h
1.1Catamarans, trimarans and SWATH1.2Separation-to-length ratio and its influence1.3Hull slenderness and resistance1.4Distribution of displacement between hulls1.5Wet deck clearance1.6Applications: ferries, patrol vessels and offshore wind1.7Advantages of deck area and stability1.8Weight and structural limitations1.9Selecting the configuration according to mission1.10Practice: preliminary sizing of a catamaran
2.1Resistance of slender hulls2.2Interference between wave systems2.3Interference factors and optimum separation2.4Systematic series from Southampton2.5Michell's theory for thin hulls2.6Effect of the position of outboard floats2.7Viscous interference between hulls2.8Shallow water and transcritical regimes2.9Towing tank tests of multihulls2.10Workshop: interference factor versus separation
3.1Modelling of two and three bodies3.2Meshes and domain for variable separation3.3Visualisation of wave patterns3.4Optimisation of float position3.5Calculation of interference at different Froude numbers3.6Panel methods versus RANS3.7Validation with experimental data3.8Effect of appendages3.9Sensitivity analysis3.10Laboratory: CFD of a trimaran with variable floats
4.1Initial stability and high metacentric height4.2Righting lever curves4.3Hull lift-off angle4.4Stability of sailing multihulls (ISO 12217-2)4.5HSC Code 2000 criteria4.6Damage and flooding stability4.7Inversion and inverted stability4.8Effect of wind on large areas4.9Stability booklet4.10Practice: GZ curve of a passenger catamaran
5.1Coupled roll and pitch5.2Short natural periods and accelerations5.3Response in beam seas5.4Wet deck slamming5.5SWATH motions and active control5.6Directional stability in following seas5.7Broaching and bow diving5.8Floats on trimarans and roll5.9Passenger comfort criteria5.10Case study: slamming on the wet deck of a fast ferry
6.1Splitting moment6.2Torsion from pitching between hulls6.3DNV and Lloyd's rule loads for multihulls6.4Structure of the connecting platform6.5Materials: aluminium and composites6.6Global FEM analysis6.7Fatigue at hull-deck connections6.8Design of the central breakwater6.9Typical construction details6.10Workshop: transverse loads on a catamaran
7.1Propulsion: waterjets and propellers7.2Manoeuvrability with separated hulls7.3Support vessels for wind farms7.4High-speed fast ferries7.5Multihull patrol and military vessels7.6Integrated design optimisation7.7Costs and feasibility7.8Class and flag regulations7.9Trends in electric multihulls7.10Case study: catamaran versus monohull comparison
8.1Definition of mission requirements8.2Configuration and dimensions8.3Interference and resistance study8.4Static stability analysis8.5Motion and slamming analysis8.6Transverse loads and structure8.7Operability assessment8.8Final optimisation and comparison of alternatives8.9Report and presentation8.10Final review with the tutor
How you'll learn
100% online training on the SEIUM campus, with downloadable material, recorded classes and an assigned technical tutor. No fixed timetables: students progress at their own pace within the intake, which makes it possible to combine study with work.
Each module combines theory, guided reading of the original standard and applied exercises. The working software is Maxsurf, STAR-CCM+, OpenFOAM, Rhinoceros 3D, in free, academic or evaluation versions. Assignments are based on real procedures: CFD of interference between hulls, static and dynamic stability calculation, and load analysis of the transverse structure. Assessment is continuous, module by module, plus the final integrating project.
Build it end to end
Your final project follows the real engineering workflow, step by step, reviewed by your tutor.
Analyse multihull configurations and their advantages.
Calculate resistance to advance and interference effects.
Apply CFD to the study of multihulls.
Assess the static stability of multihulls in accordance with the standard.
Analyse dynamic stability and motions in waves.
Where this takes you
Requirements
- Prior technical training or professional experience in the sector. A university degree is not required.
- Internet connection and a computer capable of running the programme's software.
- Sufficient level of Spanish to follow technical standards documentation.
Ready to start?
Send your application today. Our admissions team replies within 72 hours with your study plan and funding options.
Frequently asked questions
The programme comprises 800 hours in total, spread over 6 to 8 months. That is between 10 and 15 hours per week on average, compatible with a full-time job.
The work is carried out with Maxsurf, STAR-CCM+, OpenFOAM, Rhinoceros 3D. Free, academic or evaluation versions are used, and the tutor indicates the free alternative where one exists.
An own diploma from SEIUM Institute upon passing the continuous assessment and the integrating project. This is in-house training, not an official qualification from the Ministry.
Yes. Modules passed in a Course or Postgraduate Diploma in the same area count towards the higher programme. Check the recognition policy when you enrol.
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