CAE Shredder Design Project: Advanced Engineering, Western Sydney

This document details a project focused on designing a shredder using Computer-Aided Design (CAD) and Finite Element Method (FEM) modeling. The primary aim is to design a shredder capable of destroying waste items like Acrylonitrile Butadiene Styrene (ABS), thermoplastics, and Poly Lactic Corrosive (PLA) for reuse and reprocessing. The design process involves utilizing 3D CAD to visualize the shredder, which is smaller than a scaled-down version, and configured for reprocessing plastic materials. The project covers different types of shredders, including shear shredders, and their specific applications. CAD modeling benefits are highlighted, such as avoiding costly mistakes and improving precision, while FEM modeling is used for calculations to predict material and structure responses. Stress analysis is performed on various components like support, rod, large gear, and blade, with results and discussions on each. The conclusion emphasizes that the shredder is designed using finite element analysis and computer-aided design to destroy plastic items, metals, and thermoplastics, with the reprocessed waste intended for further applications, particularly within a green-colored 3D printing system.

ADVANCED CAD

Introduction
To destroy the waste items like Acrylonitrile Butadience
Styrene(ABS),thermo plastics and Poly Lactic Corrosive(PLA),the
shredder will be designed. The 3-D(3 Dimensional)CAD(computer
aided design) will be used to design the shredder. The shredder
destroy the waste items into small size. It is reused and reprocessed
for further processing. The CAD will be used to display the whole
design process.

AIM
To design the shredder using CAD modelling and destroy
the waste items.
Shredder will be designed in smaller size than scaled
down shredder.
Shredder configuration process will be small.

shredder is designed to reprocess the plastic materials.
the shredder should be composed for fruition and
configuration of rehearse. The reused and reprocessed
materials are used for further applications.

Shredder design
The shredder is a machine.it is used to minimize the size of
materials. The shredder is designed using CAD and FE
modelling .Totally three types of Shredders are there.
1. Type 1 Shear shredder
2. Type 2 shredder
3. Type 3 shredder

Shredder design
Type 1 Shear shredder
The three variables are planned in the shear shredder.
• Implementations of substitute handling strategies
• Affectability of the downstream granulators to stun loads
• Nature of bolster

Shredder design
Type 2 Shredder
It is used for basic size lessening and deatroying before the
handling.It is commonly used to record decimation,multible
strong waste etc.It used the two contra-pivoting shafts.Thase
two shafts are run at different rates and torque yields.

Shredder design
Type 3Shredder
It is used in both certain idea of sustain material and
downstream process prerequisites.

CAD Modelling
CAD(Computer Aided Design) is used by engineers,
architect and artist to design the 2D and 3D models.it is
used for visualizing the design before the physical made.

CAD Modelling
Benefits
to aviod expensive mistake.
prescision and control is gained more.
mistakes in design is corrected quickly and clearly.
Creativity is improved.

CAD Modelling
Applications
• Surface modelling
• Drafting
• Detailing
• Reverse engineering

FEM Modelling
The FEM is used for calculation purpose.It is a
numerical method.By using the FEM, engineering and
mathematical physics calculations are solved.This
mathematical technique is used for predicting the response
of materials and structures.

FEM Modelling
A direct FEA count provides the results for
• Deformation
• Stresses.
• Constraint powers
• Strains, interior powers, and further outcomes got from the above
outcomes

Results and Discussion
Stress analysis of support
The missing of teeth in machine involved FPD. The
pier projections are used to rebuild the missed teeth and
moderate the dock projection. The nonregid connectors is
used for solving this problems.Photo elastic models is a
critical apparatus to examine the stress dissemination in
different structure. By using 3d,the capacity to reproduce
dental structures shapes and stacking attributes is measured.

Results and Discussion
Stress analysis of rod
The C.R target is to transmit push and draw the
cylinder stick to the wrench stick. It responds the movement
of cylinder into turning movement of wrench. It is little
end ,major end and shank. The shank may be tubular, round
and ellipsoidal section. The FEA analysis is used for basic
investigation and it is related with geometry and limit
condition. It reduce the shear stresses and streamlining.

Results and Discussion
Stress analysis of large gear
The gears are used to transmit the control between the parallel
shafts. Some of the burdens exhibit from the teeth of the turning gears,
that is considerable no.of stresses. The surface contact stretch computation
and root bowing anxiety is the basic investigation. The contact stress and
twisting worry for involute goad equip teeth in lattice is limited by
component technique.

Results and Discussion
Stress analysis of blade
Albeit is created to reduce the problems in complex
airframe structures.It is mergwed to the wide field of
continum mechanics.The limited component technique is
used for exact arragement of complex building issue.The
FEM is for critical apparatus of designing examination.The
conventional strategies is used fro building examination.

Conclusion
The shredder is designed by finite element analysis
and computer aided design. It is used for destroy the plastic
items, metals and thermo plastic.The reprocessed and
recycled waste is for applications. The shredding process is
done in the green color 3-D printing system.

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