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Squash ball mechanics and implications for play.

A E Chapman, R N Zuyderhoff

    Canadian Journal of Applied Sport Sciences. Journal Canadien Des Sciences Appliquees Au Sport
    |March 1, 1986
    PubMed
    Summary
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    Squash ball performance, including coefficient of restitution and stiffness, is significantly influenced by temperature and velocity. These factors impact ball dynamics, suggesting current industry standards may be inadequate for optimal squash play.

    Area of Science:

    • Sports science
    • Materials science
    • Physics of sports equipment

    Background:

    • Squash balls are critical to game dynamics.
    • Understanding ball properties under varying conditions is essential for players and manufacturers.
    • Existing standards may not fully capture real-world performance variations.

    Purpose of the Study:

    • To investigate the impact of temperature and velocity on the coefficient of restitution of squash balls.
    • To analyze how temperature affects the force-deformation characteristics of different squash ball types.
    • To evaluate the suitability of current squash ball standards.

    Main Methods:

    • Experimental analysis of coefficient of restitution at varied temperatures and projection velocities.
    • Static force-deformation testing of squash balls under different temperature and force conditions.

    Related Experiment Videos

  • Comparison of experimental data with standards set by the Canadian Squash Racquets Association.

    • Main Results:

    • Coefficient of restitution increases with temperature and decreases with velocity.
    • Temperature's effect on restitution is more pronounced at lower velocities.
    • The double yellow dot ball exhibited lower restitution, but differences diminished with increased temperature and velocity.
    • Ball stiffness increases with applied force and temperature; the yellow dot ball was stiffer.
    • Current Canadian Squash Racquets Association standards were found to be inappropriate.

    Conclusions:

    • Temperature and velocity are key determinants of squash ball performance.
    • The double yellow dot ball's properties differ from the standard yellow dot ball.
    • Existing testing standards require revision to accurately reflect on-court ball behavior.
    • Findings offer insights for optimizing squash ball design and testing protocols.