Naval Architecture

WIND Naval Architects Trimaran Wake Analysis

  • WIND Naval Architects provides a customised design tailored to the operational profile of the vessel. Ensuring optimal performance, efficiency and economic return.

    Concept to delivery support

  • Through decades of experience in the commerical vessel sector, WIND Naval Architects can offer smooth navigation through class approval for new and existing vessels

  • WIND Naval Architects can produce stability books and assessments for new and existing vessels. Using a range of hydrodynamic software include Orca and Maxsurf,.

Computational Fluid Dynamics (CFD)

WIND Naval Architects Computational Fluid Dynamics CFD

  • In the early stages of new designs WIND performs exhaustive CFD testing to ensure the hull shapes are best suited to operations. The flow on effects of good design practice lead to life long fuel efficiency and seakeeping. Eliminating guess work from performance estimations

  • Assessing existing vessel designs can offer economy and performance enhancements. Small modifications or additions can help modernise older designs

  • Simulations are produced to present different solutions to vessels to demonstrate the benefits to adding foils or appendages to hull shapes.
    These simulations have also been beneficial in the design of foiling vessels as they become a viable alternative for fast and efficient transport

Engineering Support

WIND Naval Architects Trimaran Engine Waterjet Drive

  • Repowering existing vessels is a strong way to modernise at lower capital expenditure.

    WIND can help bring vessels in line with the latest emission requirements or converting to electric or hybrid drive trains.

    WIND provide performance estimates, fuel economy evaluations, spatial fit and structural modification details.

  • Weight, performance & stability changes experienced in refits can have a major impact on vessel operations. WIND can help navigate the course to quicker solutions

  • WIND can use vast experience to work on behalf of clients. Providing smooth work flow and streamlined processes to achieve the best results

Concept Design

WIND Naval Architects WIND Flyer Trimaran CTV Concept

  • WIND offers it’s services to operators and shipyards to help prepare documentation for tender response and to help boost investor confidence. We believe professional presentations can build trust and demonstrate and understanding of design and operation criteria

  • Early stages of concepts are often assisted by 2 dimensional drawings. Sketches help the process of realising clients dreams

  • An integral part of design is to merge form and function. WIND staff have decades of experience efficiently producing designs that conform to client preferences and rule requirements

  • To help present concepts to operators and investors, WIND can produce quality 3 dimensional renderings. Renderings help visual concepts and move a step closer to reality

  • Further to static renderings, WIND produces fly around animations to bring a concept to life.

    Animations can also be produced to illustrate moving components and vessel motions

  • WIND performs seakeeping calculations by using ShipX VEssel RESponse program (VERES) and Computational Fluid Dynamics (CFD).

  • WIND frequently calculates displacements, velocities and accelerations on monohulls and multihulls (up to 5 hulls) at low and high speeds. This allows us to evaluate different hull configurations. By analysing the results, they are typically presented as:

    Motion transfer functions in six degrees of freedom.

    Relative motion transfer functions.

    Motion transfer functions at specified points, for instance passenger area, bow fender, etc.

    Unsteady global loads.

    Short- and long term statistics of above values.

    Operability limiting boundaries.

    Percentage operability.

  • WIND calculates viscous roll damping from hull friction, bilge keels, roll stabilising tanks and active roll stabilising fins.

  • WIND calculates the effects from passive free-surface roll stabilizing tanks, active and passive U-tube tanks, rudder control and actve and passive fins such as roll stabilizing fins, T-foils and integrated foils with flaps and interceptors.

    Motion control systems based on PID regulators and motion reference points are employed to optimise each design and evaluate the effect of the various motion control features.

    Combined with years of experience in model testing, full scale testing and analysis of motion control devices, WIND offers a unique capability to improve the motion characteristics of each design.

  • WIND performs time-domain calculations based on combining the linear hydrodynamic coefficiencts for the hull and the non-linear effects from wave exictation forces, restoring forces and motion control systems.

    This gives for instance the ability to evaluate forced roll and pitch motions to showcase the effect of a cetain motion control device, effects from the hull piercing through a wave, effects of wave peak or through when pushing against a wind turbine etc.

  • Short term statistics calculation includes:

    Standard deviations.

    Significant values.

    Expected maximum in a seastate of a given duration (for instance 3 hours).

    Average of the 1/nth largest values.

    Response zero-upcrossing period.

    Plotting of response spectra.

    The calculatons are based on selected standard wave spectra (Pierson–Moskowitz and JONSWAP), as well as measured wave spectra, and can be performed for long- and short-crested seas.

  • WIND calculates the long term statistics based on wave scatter diagrams for the relevant operation area.

    The long term statistics can be calculated for each wave heading, separately, or with a specified probability of each wave heading.

    A speed curve specifying the vessel speed as functon of significant wave height can also be delivered.

  • WIND calculates operability based on:

    Limiting significant wave height as a function of the wave period

    Operability diagram

    Percentage operability

    Motion Sickness Incidence (MSI)

    , based on the following criteria:

    WIND performs operability analysis based on the following criteria:

    Motions in six degrees of freedom

    Relative vertical motions

    Probability of slamming

    Probability of green water on deck

    Probability of air exposure

    Vertical accelerations according to ISO 2631 (motion sickness)

    Motion-Induced Interruptions (MIIs)

  • For the most demanding cases, WIND employ CFD calculations to extract hydrodynamic coefficients as input to the vessel response calculations, Further CFD analsyis can also be performed in waves to confirm the the vessel response calculations for more complex shapes.

WIND Naval Architects Trimaran Seakeeping

Seakeeping Analysis

Yard Support

  • Existing proven build processes integrated into new builds. WIND value the experience of shipyards and lessons learned through years of construction

  • To aid streamlined flow of information to the workshop floor, WIND place high importance on strong documentation governance

  • Through the use of the latest Shipconstructor Software, WIND can offer detailed tracking of individual parts along with weight, stock and nesting data

  • All construction projects are complemented with a 3D model that includes individual part names, stock type, nest sheet reference, assembly drawing identification

  • WIND can help shipyards communicate with class to help resolve difficult issues and reduce delays.

  • Support continues after vessel delivery including, transport, client liason, marketing, future modifications and vessel repurposing

  • WIND Staff are located across the globe to offer around the clock support

Visualization

  • Bring concepts to life with a 3 dimensional render images. Help visualise what the craft will look like and develop styling ideas and colour schemes

  • WIND can present animations to demonstrate the motions of integral vessel features. Perfect for communicating concepts to clients, operators and builders

  • Utilising the latest software, WIND can enhance the communication of key aspects in animated or still graphics

  • Walk through a vessel prior to vessel construction. Take the captains seat and know what to expect from a new build

  • 3D models give a real world understanding of how vital machinery and components fit into spaces allowing for early decision making and ultimately enhances design efficiency

Sea Trials and FMEA

  • As part of yard and owner follow-up, WIND typically takes part in dock trials, yard trials and sea trials on new builds as well as retrofit projects.

    WIND’s scope typically consists of developing test procedures, function testing, support the yard and owner in the execution of the testing and report results to yard, class and owner.

  • During design and engineering, WIND takes a vital part in preparing the failure mode effect analysis according to IMO High-Speed Code, prepare test procedures and guide the yard and owner during the FMEA testing.