Radar Mast & Final Assembly of Yacht

Radar Mast

Modelling of Sunseeker Predator Yacht

Objective

The objective off this project is solely aimed at applying all surface modelling tools in designing a parts(s) and then use the surface as reference to assemble the parts of the Sunseeker Predator Yacht in SolidWorks.

Introduction

In this project, we will design individual parts of the Sunseeker Predator Yacht in SolidWorks by making use of various modelling tools combined with solid modelling features, projected curves and reference geometries to eventually mate all parts using a reference surface to achieve the fully assembled yacht. All the sketches used to design the sunseeker predator yacht will be constrained with proper dimensional and geometrical constraints enabling us to make any variations during the design process. This technique/ approach that we are going to use in this project is called feature parametric modelling.

Design Approach: The parametric feature-based Bottom-Up approach has been followed in the modelling of this sunseeker predator yacht. Please refer to the Flowchart below.

Commonly used features for modelling:

Sketch: This feature in solidWorks helps to create 2D geometry with reference to a plane. This feature includes entities as line, spline, circle, rectangle, fillet entities etc.

Extrude: This feature helps to convert 2D geometry to 3D part with addition of 3^rd dimension to 2D geometry.

Revolve: This feature helps to revolve 2D geometry or sketch about selected axis, plane, edge and convert it to solid feature.

Mirror: It mirror the part, entity about selected plane, face, axis or edge to get exact replica of original one.

Extrude cut: It cut a solid model by extruding sketch geometry in specific dimension to get specific part shape.

Convert entities: it convert selected sketch entities, edge to sketch segment. This help to save time by eliminating process of re-sketching.

Reference geometry: This help to create new reference plane, axis, coordinate system and point as required.

Fillet: This feature generate rounded shape of curve for selected internal or external faces and edges with radius values in solid or surface feature.

Chamfer: These feature creates bevel feature along an edge, a chain of tangent edges or vertex.

Appearance: This adds visual properties to model which give them a materialistic look. There is no effect over physical properties by defining appearance.

Surface Loft: It create lofted surface between two closed profile in different plane.

Surface Trim: It trims the surface which is required only when there is a intersection surface, sketch or plane.

Surface Knit: It create or combine two adjacent non intersecting surface together.

Delete Face: It completely delete or remove face as required

Following Parts are modelled and assembly

Propeller

As the name suggests, propeller is a device which propels (drive or push forward) an object that transforms rotational power into linear thrust by acting upon a working fluid, such as wate, as we are creating a propeller for our yacht

Following commands are used to complete this part:

2D-Sketch, revolve boss/base, lofted boss/ base, fillet, extruded cut, circular pattern

Radar

The term radar was coined as an acronym for ‘Radio Detection and Ranging’. Here we are referring to Marine Radars which are used to detect what objects/ obstacles are around, seeing through darkness, precipitation and poor visibility to safely navigate a ship/boat by avoiding collision. The radar scanner keeps rotating at 360 degree about its vertical axis and is located at the top of the ship/boat. For our radar we will also create and add a text on its surface.

Following commands are used to complete this part:

2D-Sketch, Extrude Boss/Base, Fillet, Extruded cut, sketch driven pattern, mirror, spilt line

Hull

Hull is the watertight enclosure of the watercraft, which protects the cargo. The hull of a ship directly interacts with water and therefore is the most crucial consideration providing hydrodynamic point of view for designing.

Following commands are used to complete this part:

Projected curve, lofted surface, trim surface, extruded surface, knit surface, filled surface, shell, extruded boss/ base, extruded boss/ base, extruded cut, fillet, chamfer, plane, swept boss/base, revolved boss/base, dome, helix and spiral linear, linear pattern, 3D sketch, mirror, split line.

Garage Door:

Garage is used to store any essential commodities, vehicles and tools.

Following commands are used to complete this part:

Extruded cut, shell, fillet, mirror, plane

Front seat:

Seat are mean to have rest to occupants. Front seat lies exactly in front of superstructure in between of that we small water pool. Front seat designed using surface features and some of solid feature with reference to deck surface. Here we used dome feature to give shape like cushions.

Following commands are used to complete this part:

Plane, swept surface, extruded surface, trim surface, filled surface, lofted surface, knit surface, chamfer, revolved boss/base, extruded cut, fillet, mirror, dome.

Middle Seat:

Middle seat is situated next to superstructure. It is modelled with reference to deck surface.

Following commands are used to complete this part:

Extruded boss/base, plane, chamfer, fillet, mirror.

Rear Seat:

Rear seat locate at the end of deck. We used many surface feature to model this seat with reference to deck surface. A flag is modelled with 3D sketch giving a real look to it as it show during wind flow.

Following commands are used to complete this part:

Insert surface, swept surface, offset surface, trim surface, ruled surface, knit surface, extended surface, loft surface.

Superstructure:

It is the extension above deck surface of hull which house accommodation, offices, signal and communication unit, utility space and electrical system which are indispensable to the operation and the functionality of the ship as well as the sustainability of crew.

Following commands are used to complete this part:

Inset surface, extrude surface, swept surface, offset surface, trim surface, ruled surface, knit surface, extend surface, loft surface, surface fill, delete face, project curve, boss extrude, cut extrude chamfer, fillet, mirror and dome

Radar Mast:

A mast system is composed mainly of supporting frames, a c shape base plate, radar ( transmitter and receiver) and an antenna. This modelled with reference to superstructure top surface. Base plate support all equipment components over it.

Following commands are used to complete this part:

3D sketch, Projected curve, boss extrude, shell, chamfer, fillet, mirror, dome, revolve

Assembly of Yatch Model

Assembling is a process in which individual components of a system are placed together to form a complete system that we be worked as desired. There are mainly two types of approaches in assembly as follows

1. Top Down Approach

In top down parts, location of parts, designed related parameters are done in assembly environment itself. Hence with this approach very less rework required to change in design.

2. Bottom Up Approach:
   
   in is the traditional way in which we design parts or components individually and then insert them into assembly environment as needed and apply mates to define relative position each component. If there is any interference in assembly then we have to make changes separate in each part.

Mate Feature:

This feature creates a geometric relationship between two parts. To define it with refernce to part we add relation like linear, parallel, concentric, rotational which fix the part in proper way and according requirements.

Conclusion:

• Learnt to use surface modelling feature and converting them to solid model.

Design of complex shape and feature with applying appropriate appearance.