Photo Realistic Rendering

MODELLING OF AMERICAN CHOPPER IN SOLID WORKS

INTRODUCTION:

This project explains about the designing of different parts of chopper and assembling them to get a complete model of the chopper using Solidworks. It also tells about the rendering of the model using Solidworks Visualize to make the chopper more natural and realistic.Solidworks is one of the most prominent modelling software.By using this software we create a 3d parts using 2d sketches and we can use add-in feature like photo360 which helps on rendering of the final model to make it more realistic.In this project we learnt about delailed design of American Chopper parts and assemble them and rendering of the final chopper.

OBJECTIVES:

The objective of this project is:

• To create indivisual parts of chopper using solid works
• To assemble all the indivisual parts into a chopper
• To know thw application of decals,lights,camera etc
• To create photorealistic model and rendering it using photoview360 and solid worksvisualisation.

DESIGNING METHODOLOGY/APRROACH :

FRONT & REAR FENDERS:

A Fender is the part of a car, truck or motorcycle that surrounds the wheel well. The primary function of a Fender is to prevent dirt and debris from being thrown into the air by the tire. It was very easy to model these fenders. Both fenders are modelled by using features like revolve, split and other features with different dimensions.

FRONT

REAR

CHAIN:

Chain is used to transmit mechanical power from engine to rear wheel. Roller chain is the commonly used type. Though the chain is a complicated model, it was easily modelled by using mirror, curves and curve driven pattern. The links were modelled as blocks and later imported. The curve driven pattern was done multiple times to get the accurate result.

ENGINE:

Engine is the heart of bike. It provides the power necessary to drive the vehicle. A picture is imported for reference before modelling. First, bottom part of the engine, consisting of crank shaft, motor and transmission pulleys, was modelled. Then upper part of the engine with cooling fins are drawn. Then rear sprocket and air filter were modelled. Finally the exhaust system and spark plug were modelled using splines, projected curves and sweep features.

TRANSMISSION BELT:

Belts are mechanical elements used for power transmission without phase shift. They are loops of flexible materials used to mechanically connect several rotating shafts, most often parallel. Belts can be used as a transmission element, to efficiently transmit power or movement.

CHASSIS:

Chassis is the main body of the chopper. It is the skeletal frame of the bike and holds other components like front fork, pedals, kickstand, oil tank, gas tank and engine. It provides strength and support to the bike. Its modelling 17 was started by using a picture as a reference for sketching. It involved features like splines, projected curves and split. It took more time to model.

KICKSTAND:

A kickstand is a device on a bicycle or motorcycle that allows the bike to be kept upright without leaning against another object or the aid of a person. A kickstand is usually a piece of metal that flips down from the frame and makes contact with the ground. It is generally located in the middle of the bike or towards the rear. Some Touring bicycles have two: one at the rear, and a second in the front.

OIL TANK:

A OIL TANK (also called a petrol tank or gas tank) is a safe container for flammable fluids. Though any storage tank for fuel may be so called, the term is typically applied to part of an engine system in which the fuel is stored and propelled (fuel pump) or released (pressurized gas) into an engine.

PEDAL:

A pedal is a strong rigid body and used to rest the foot while riding bikes. Splines, fillets, dome and linear pattern were some of the features used to model the pedal.

GAS TANK:

The gas tank covers the oil tank and engine and also acts as a shield that prevents the heat from engine. The seat and opening for fuel tank are located on the top of gas tank. This also involved using a reference picture for sketching. One half of the tank was created and the mirrored. Then seat was modelled on the top of it and fillets were applied. Finally the tank was shelled to make it hollow.

FRONT FORK:

The front fork is the two long tubular things that hold the front wheel on the bike. That is but one function of the fork. They also move up and down to soak up bumps in the road surface like a car shock absorber does.

FRONT WHEEL:

The friction force acts in the forward direction on the rear wheel and it acts in the backward direction on the front wheel. These two are equal if the bicycle moves with a constant speed. First, the rim was created using revolve feature and spider webbed spokes were created by using arcs and offsets. Then rotor and caliper were modelled. Finally the tire was modelled using revolve and treads were applied.

REAR WHEEL:

The rear tire is primarily used for acceleration and propelling the motorcycle forward. It is wider than the front wheel to improve stability of the bike. The steps followed for front wheel were used here. But this wheel has a rear sprocket as additional component. It has varying dimensions.

TOOLS/FEATURES USED WHILE DESIGNING:

The various modelling features are used for modelling the American Chopper which are discussed below:

EXTRUDE:

Using the SOLIDWORKS Surface Extrude feature, we can extrude the boundary edges of a face of a solid body or edges of a surface body in a customized direction. When we run the Extruded Surface command, two things can happen: Either a sketch is active or preselected or no sketches exists.

REVOLVE:

Revolves add or remove material by revolving one or more profiles around a centerline. You can create revolved boss/bases, revolved cuts, or revolved surfaces. The revolve feature can be a solid, a thin feature, or a surface. The Revolve feature can be found on the Sketch or Feature toolbar. Revolve rotates Faces, Sketch regions, Edges, and Sketch curves about a central axis in order to create, add to, remove, or intersect a part.

SWEEP:

A sweep is a tool that creates a solid, a cut or a surface feature by moving a profile along a path. To create a solid, use the Swept Boss tool to move a profile along a path. The profile can contain one or more closed contours.

FILLET:

Fillet/Round creates a rounded internal or external face on the part. You can fillet all edges of a face, selected sets of faces, selected edges, or edge loops.

CHAMFER:

The chamfer tool creates a beveled feature on selected edges, faces, or a vertex. Enter values for the three distances on each side of the selected vertex, or click Equal Distance and specify a single value. Choose Select through faces to enable selection of edges through faces that hide the edges.

MIRROR:

Creates a copy of a feature, (or multiple features), mirrored about a face or a plane. You can select the feature or you can select the faces that comprise the feature. Bodies to Mirror. Select a body in a single model or multibody part to create a mirror entity.

SHELL:

The shell tool hollows out a part, leaves open the faces you select, and creates thin-walled features on the remaining faces. If you do not select any face on the model, you can shell a solid part, creating a closed, hollow model. You can also shell a model using multiple thicknesses.

LINEAR & CIRCULAR PATTERN:

Use linear patterns to create multiple instances of one or more features that you can space uniformly along one or two linear paths. Circular Patterns. Use circular patterns to create multiple instances of one or more features that you can space uniformly around an axis.

PROJECTED CURVES:

Projected curve is used to create a curve that represents the intersection of sketches from two intersecting planes. The two sketches (gray) project onto each other to form the 3D curve (green). The curve is used as a path for a sweep. The swept geometry is used to create this power adapter.

MATES:

Mates create geometric relationships between assembly components. As you add mates, you define the allowable directions of linear or rotational motion of the components. You can move a component within its degrees of freedom, visualizing the assembly's behavior.

ASSEMBLY OF THE CHOPPER:

All parts of the chopper was imported and assemble them. In assembly mate feature was used to give a relation between the two parts. Chassis was inserted initially and fixed. The other components were inserted and related to the chassis. Some parts were modified during assembly to make it perfect.

RENDERING:

• Rendering is the process of creating a natural and realistic images
• Rendering has been done in two ways in solidworks
• photoview360
• Solidworks visualize

PHOTOVIEW360:

Photoview360 is a visualization and rendering solutions include with solidworks providing a highly intaractive envirnment for viewing

SOLIDWORKS VISUALIZATION:

Solidworks visualize provides a suit of stand-alone software tool that combine industry leading rendering capabilities with visual design oriented features and workflows,allowing easy and fast creation of visual content that communicates a design vision,passionand emotion

CONCLUSSION:

• The parts of the chopper are modelled
• The parts are inserted into the assembly and the chopper is assambled
• The realistic image was rendered by using photoview and solidworks visualize