rack and pinion

           A rack and pinion is a pair of gears which convert rotational motion into linear motion. The circular pinion engages teeth on a flat bar - the rack. Rotational motion applied to the pinion will cause the rack to move to the side, up to the limit of its travel. For example, in a rack railway, the rotation of a pinion mounted on a locomotive or a railcar engages a rack between the rails and pulls a train along a steep slope.The rack and pinion arrangement is commonly found in the steering mechanism of cars or other wheeled, steered vehicles. This arrangement provides a lesser mechanical advantage than other mechanisms such as re-circulating ball, but much less backlash and greater feedback, or steering "feel". The use of a variable rack was invented by Arthur E Bishop,so as to improve vehicle response and steering "feel" on-centre, and that has been fitted to many new vehicles, after he created a hot forging process to manufacture the racks, thus eliminating any subsequent need to machine the form of the gear teeth

my design

DESIGN

week 9

                 In week 9 I spent most of my time writing up my project proposal. Our brief was to submit a project proposal containing the following elements:



The project proposal should have the following format:
Title Page
Abstract
Table of Contents
Introduction
Problem Statement
Literature Review
Methodology
Objectives
Benefits/ Contributions
Work Plan
Conclusion
References

               I began writing the document step by step explaining the details of my idea. Having completed the proposal, I then had a better understanding of what I was going to do and what I wanted to achieve with this project, and I can refer back to this propoosal when I get stuck. This is the base I can always return to if I need help.

Introduction

                 The first week of my final year project started on the July 2011. This week was the first in my process to  create a final project in my last year. The main focus of this week was to brainstorm for ideas.As I began  brainstorming, I tried to focus on what type of final output the project would be with e.g. through a film,website, animation etc.In my 3 years with this course so far I found a particular interest in making renewable shock absober .  A regenerative shock absorber is a type of shock absorber that converts parasitic  intermittent linear motion and vibration into useful energy,such  as electricity. Conventional shock absorbers simply dissipate this energy as heat. When used  in  an  electric  vehicle  or   hybrid  electric vehicle  the electricity generated  by the  shock absorber can be diverted  to its  power train  to increase  battery  life.In non-electric vehicles the electricity can be used to power accessories such as airconditioning.Several different  systems have been  developed  recently,  though they are still in stages of development and not installed on production vehicles.The system is controlled by an active mechanical system that optimizes the damping, providing a smoother ride than conventional shocks while generating electricity to recharge the batteries or  operate electrical equipment .I chose this because I am interested in how can the absober can absorb west to convert the electrical for our future user.To make the final project more interesting and technically better, I chose to create an interactive website.

             In week 5, I were assigned supervisors for my projects. My supervisor is sir AHMAD BASRI BIN HJ. ZAINAL and we were then asked to arrange a meeting to discuss our projects and the next steps on the road to developing our ideas. For the meeting I prepared a few topics to bring up to discuss. The topics are as follows:

Research & Resources
Idea & Brainstorming
Design aspects
Development aspects
The next steps I had to take for the project

RSA

Mohamad Salihin Bin Salim

51210111243