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Denis Finohieiev

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Denis hasn't been on the service for a long time.
But on Freelancehunt, there are also 565 freelancers in category Engineering, who will professionally and timely complete a project of any complexity.

Ukraine Odessa, Ukraine
2 years back
Available for hire available for hire
1 Safe completed
3 years back
1 client
on the service 5 years

Rating

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Rating
225

Language proficiency level

Українська Українська: fluent
English English: upper-intermediate

Skills and abilities

Design & art

Services

Architecture


Writing

Portfolio


  • The Professional Sup Board. 3D simulation, CFD method

    Engineering
    The Professional Sup Board.3D simulation, CFD method

    CFD (Computational Fluid Dynamics) is a computerized method of water flow prediction.When a customer came, he gives me a simple task: recreate existence design with better surface quality.The time pass, we started CFD simulations, upgrade overall design and improve time on national championship.The Troubles:

    - Old design had a lot of surfaces, just imagine sup board created with scotch tape, it'll be close to the model I'd got.Find balance between stability and speed.Explain main parameter and water surface distraction.The Solutions:

    To solve old design trouble I created a new model basement which is consisted of crossing shapes in most valuable points.It's allowed me to change the model easily and gain solid surface across the board.+ According to discussion with the customer, each model design was created due to the championship's water type, like a flat water or wavy one.Depending on radius at the bottom of board, we achieved different results in speed and stability.It took a time to explain why water creates vortex in different locations and why wave forms itself at a certain distance.However, after some discussions we get agreed in these questions and the work went really great.After the first model was complete and show good results at the championship we had worked a lot and created 4 different types of boards, from Pro one, special for sport to a universal one for mass market.Now you can look at this board at the customer's site: rapid.ua (composite SUP board)

    If you're interesting about my cases, feel free to visit the site freestov.com
    If you have any comment about this post - leave it or dm me.Have a good day!#solidworks #cfd #board #supboard #sup #cad #surfacedesign #simulation #3d #engineer
  • Laser case, metal bending

    Engineering
    It measures parcels dimensions, part of a complex assembly.

    The results of work:
    1 . 3D Assemblythat Instantly Check
    Dimensions and Weight of a Parcel
    The 2nd Manufacturing files:
    Technical drawings
    Laser cut files (DXF)

    Adjustability, presented model is a part of a complex assembly thathaspossibility formanual or auto adjustment
  • Medical catheter, manufacturing files

    Engineering
    It helps make an injection of medicine into the blood.

    The results of work:
    1 . Design according to the customer needs
    The 2nd Appropriate materials chosen
    3 . Manufacturing files:
    Technical drawings
    Step files

    Selected materials for manufacturing are human body friendly and hypoallergenic.
  • The Excavator Teeth

    Engineering
    It digs the ground and will be replaced after wearing.

    The results of work:
    1 . Modified shapes due to customer needs
    The 2nd Manufacturing files:
    Technical drawings
    The STP files
    3 . Force analysis and wear prediction.
  • Agricultural machine, complex assembly

    Engineering
    It helps farmers create equal beds in the field. Model created by reengineering. All manufacturing files and drawings were created in one week.

    The results of work:
    1 . Ability to modify bed size
    The 2nd Manufacturing documentation:
    Technical drawings
    Laser cut files (DXF)
    Part lists
    Simple manufacturing
    All nonstandardized parts designed as sheet metal one. Assembly needs only 3 manufacturing processes:
    1 . Laser Cutting
    The 2nd by Bending
    3 . The Welding
  • Fuel tank, 3D simulation, method FEA

    Engineering
    Fuel tank for 39 tons and FEA (Finite element analysis) - computerized method of prediction model reaction.This fuel tank transports 39 tons of fuel for your car or another vehicle.Customer wanted to check weak zones and improve construction.After discussion, we decided to make a FEA analysis and check welding connections.Troubles

    3D model with big gap between the details because of a sheet metal bending requirements.Unable to check welds because of gaps between the corners.Complicated force distribution because of pressure difference between the top and bottom of fuel volume.Solution

    I transformed all sheet metal bodies to a surface bodies and repaired gaps.I saved directions of all surfaces, outer sides were outside, inner - inside.(Otherwise, I would have trouble with model preparing for simulation.)Thanks to repaired surfaces connection, I created welds plots on intersection of planes.According to transportation requirements, fuel tank must be filled for 90-95% of total volume.This condition created two zones of inner surfaces: under pressure and no pressure.Zone under pressure has complicated pressure pattern because of Pascal's paradox.This pressure can be applied on model by using mathematical formula or by CFD simulation.I used CFD simulation of fuel on the tank and export results to a model for FEA simulation.Results

    1 - Simulated safe factor, found out weak zones and checked welding plots.2 - Recommendations for improving weak zones.3 - Overall report of CFD and FEA simulations.If you're interesting about my cases, feel free to visit the site freestov.com
    If you have any comments about this post - comment it or dm me.Have a nice day!
  • Clear ice maker, Bar edition

    Engineering
    Clear ice maker and 3D thermal simulation - computerized method of temperature prediction.Look at your cocktail, 60% of it - clear ice.This ice maker creates it in 20 hours!Customer wanted to reduce overall dimensions, freezing time and material prize of an old design.After the discussion, we set goals:

    To reduce silicone volume in half.2 – To reduce plastic volume by 25%.To reduce the freezing time from 24h to 20h.Create a new design.Check the results by thermal simulation.Troubles

    Create new design with half of silicone and 75% of plastic volumes, that will work properly.Find solution for better thermal insulator with smaller dimensions.Get freezing time of 20 hours.Solution

    First I calculated the smallest wall thickness for silicone detail, add margin of safety ang create walls around the ice balls.These were required parts of silicone details.After I started designing variations of the model, at 13th design we stopped.(Yes is ! )I obtained better insulating efficiency by using air as an insulator.Air has low thermal conductivity, that is why changing shape of thermal insulator to radiators type decrease thermal conductivity at all.I made 18 thermal simulations after each upgrade of insulating efficiency.Every time I found out water's freeze time and compare it to real Ice Maker.The best result is in the design you can see on picture.When all requirements meet, I 3D printed a prototype and test Berlinzo Ice Maker in real life.All the indicators were good.The customer was satisfied, work done!Results

    1 - Reduced silicone volume by 42.2%.2 - Reduced plastic volume by 26.2%.Reduced freezing time to 20 h.
    Created Selling Design.Prototype 3D printed and tested6 - Overall reports of thermal simulations.If you're interesting about my cases, feel free to visit the site freestov.com
    If you have any comments about this post - comment it or dm me.Have a nice day!

Reviews and compliments on completed projects 1

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All goats, no instructions, only positive moments from work

Activity

  Latest proposals 9
Development of Design
68 USD
3D модель по фізичному зразку та масштабування. Personal project
451 USD
Cutting device, cheese cutting
90 USD
Making a frame of aircraft models
135 USD
Pneumomehanic conductor to break down the substrate
147 USD
Cutting for the conductor for the assembly of the undergrounds
30 USD
Calculate what weight can bear MDF, LVL, Bamboo plants
34 USD
by Gillotina
74 USD
Supply for the cat.
27 USD