ENGINEERING TRIPOS PART IIA - 2012/2013

Project SC2 - Bicycle Design

Leaders: Prof D.A. Cardwell and Dr M.P.F. Sutcliffe email: dc135 and mpfs

Project Type: Standard
Project Category: Design
Prerequisites: Part I Mechanics, Materials and Structures
Timing: Fridays 11-1pm and Tuesdays 9-11am plus afternoons

SUMMARY

The project will investigate the mechanical, structural and materials design considerations for the bicycle.

AIMS

• To define the specification of various types of bicycle in current use.
• To choose suitable materials for a number of components, using the Cambridge Engineering Selector as the principal tool, but also drawing on other sources.
• To investigate in detail one aspect of bicycle design, as listed below.

ACTIVITIES

1. Introduction (joint sessions).

An introductory session will put the bicycle in its historical perspective and discuss the specification of various types of bicycle. Students choose a mini-project for section 3.

2. Specification, Conceptual Design and Use of the Cambridge Engineering Selector (students work alone in week 1).

All students will receive two handouts. The first will guide the writing of a report on the specification and conceptual design of selected parts of the bicycle and an introduction to their mini-project.

The second handout will lead students through the use of the Cambridge Engineering Selector (CES) to identify suitable materials and help them establish performance indices for a number of key components.

3. Mini-projects (students in pairs).

Students will undertake a mini-project on one aspect of bicycle design. Mini-projects will be directed through the use of handouts and timetabled supervision. Each student will write a report on their mini-project.

The subjects covered are:

• Optimisation on cost or performance
• Tyre rolling resistance
• Bearing and chain performance
• Fork and frame loading
• Fatigue failure of frames and spokes.

4. Presentation and Assessment Each student will make a short presentation of their findings.

ASSESSMENT

Format: Submission Date - Marks

First report: Tuesday 14 May 2012 - 10 marks

CMS report: Thursday 16 May 2012 - 10 marks

Presentation: Tuesday 4 June 2013 - 10 marks

Mini-project report: Friday 7 June 2013 - 50 marks

Last updated: November 2012