Bicycle Parameters Module

A python program designed to produce and manipulate the basic parameters needed for the Whipple bicycle model.

Dependencies

These are the versions that I tested the code with, but the code will most likely work with older versions.

Required

• Python 2.7.1
• Scipy 0.9.0
• Numpy 1.5.1
• Matplotlib 0.99.3
• Uncertainties 1.7.3
• yeadon 0.8
• DynamicistToolKit 0.1.0dev

Optional

These are required to bulid the documentation:

• Sphinx
• Numpydoc

Installation

The easiest method to download and install is with pip:

$ pip install BicycleParameters

There are other options for getting the source code:

1. Clone the source code with Git: git clone git://github.com/moorepants/BicycleParameters.git
2. Download the source from Github.
3. Dowload the source from pypi.

Once you have the source code navigate to the directory and run:

>>> python setup.py install

This will install the software into your system and you should be able to import it with:

>>> import bicycleparameters

Example Code

>>> import bicycleparameters as bp
>>> import numpy as np
>>> rigid = bp.Bicycle('Rigid')
>>> par = rigid.parameters['Benchmark']
>>> rigid.plot_bicycle_geometry()
>>> speeds = np.linspace(0., 10., num=100)
>>> rigid.plot_eigenvalues_vs_speed(speeds)

Documentation

Please refer to the online documentation for more information.

Release Notes

0.2.0

• Commands using the state space form of the Whipple model have been reordered to [roll angle, steer angle, roll rate, steer rate]
• Added another rider's measurments.
• Added a module for printing tables of data.
• Added the Gyrobike and the ability to manage it's flywheel rigidbody.
• Fixed a bug in calculate_abc_geometry() that gave incorrect geometry values.
• Better error checking when putting a rider on the bicycle.
• Handles two additional points for the Davis Instrumented Bicycle.
• Added a chiled sized person based on scaling Charlie's measurments.
• Added Bode plot commands.
• Added nominal output options for several methods.
• Added a dependency to DynamicistToolKit

0.1.3

• Speed increase for the eigenvalue calculations.
• Added measurements for the human configuration on some bikes.

0.1.2

• Fixed the tex related bug for the pendulum fit plots
• Fixed some import bugs affecting the split fork/handlebar calcs

0.1.1

• changed the default directory to .
• added pip install notes
• fixed urls in setup.py and the readme
• added version number to the package
• removed the human machine classifier
• reduced the size of the images in the docs
• broke bicycleparameters.py into several modules
• updated the documentation

0.1.0

Initial release.