Some information about the inertial properties of a human and how to measure them, including some software that we wrote.<\/p>\n
Also available in presentation mode\u2026<\/a><\/p>\n We often model the human body as collection of rigid bodies connected by flexible joints, potentially passive or active. The measurement of the physical\u00a0properties (mass, center of mass and\u00a0inertia) of a human is difficult because the human\u00a0body parts are not as easily described as rigid bodes with defined joints and\u00a0inflexible geometry, daily varying mass, wobbly mass, etc.\u00a0Human mass, center of mass and inertia properties have been measured and\u00a0estimated in a multitude of ways. Each method has its advantages and\u00a0disadvantages.<\/p>\n Bj\u00f8rnstrup, J. 1995 gives a nice overview of most of these methods.<\/p>\n Yeadon’s geometrical estimation works well for the types of studies we do and allows us to quickly generate inertial properties from various people and supports a large range of configurations. We’ve written\u00a0a software package called yeadon<\/a>\u00a0that automates the process.<\/p>\n The yeadon package can be paired with various models, in particular the Whipple bicycle model. We’ve developed\u00a0a software package<\/a>\u00a0that configurations an arbitrary rider to sit on an arbitrary bicycle. Various parameter sets can be extracted from the model for different rider bio-mechanical models.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":" Some information about the inertial properties of a human and how to measure them, including some software that we wrote. Also available in presentation mode\u2026 Introduction We often model the human body as collection of rigid bodies connected by flexible joints, potentially passive or active. The measurement of the physical\u00a0properties \u2026 Continue reading Introduction<\/h2>\n
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Yeadon Method<\/h2>\n
Whipple Bicycle Model with Yeadon inertia<\/h2>\n