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Development of a grinding-specific performance test set-up.

C G Olesen¹, B H Larsen, E L Andresen

¹a Department of Mechanical and Manufacturing Engineering , Aalborg University , Aalborg , Denmark.

European Journal of Sport Science

|November 5, 2014

Summary

Researchers developed a new test setup to measure the performance of America's Cup grinders. This system accurately simulates on-boat grinding and collects data for performance analysis.

Keywords:

America's Cup ergometer sailing

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Area of Science:

Sports Science
Biomechanics
Ergonomics

Background:

America's Cup yacht racing demands high physical output from grinders.
Existing methods for assessing grinder performance lack specificity to on-boat conditions.
A validated testing protocol is needed to evaluate physiological loads and performance metrics.

Purpose of the Study:

To develop and validate a performance test setup for America's Cup grinders.
To create a system that accurately mimics the biomechanical demands of on-boat grinding.
To establish a protocol for collecting quantifiable data on grinder performance.

Main Methods:

Literature review to define America's Cup grinding demands.
Development of a custom grinding ergometer with computer-controlled resistance.
Creation of a test protocol with 10 intervals of 20 revolutions (forward/backward) and exponentially rising resistance.
Inclusion of active rest periods (50s) between intervals.

Main Results:

A functional test setup mimicking on-boat grinding was successfully developed.
The custom ergometer effectively controlled resistance and collected performance data.
The test protocol allows for the measurement of key performance indicators like peak power and performance decline.
Data analysis can reveal insights into repeated grinding performance and physiological strain.

Conclusions:

The developed test setup and protocol provide a valid method for assessing America's Cup grinder performance.
This system enables objective evaluation of physiological loads and performance metrics relevant to yacht racing.
The collected data can inform training strategies and equipment design for optimal grinder efficiency.