“Ungrounded haptic rendering device for torque simulation in virtual tennis” by Teck, Ling, Farbiz and Zhiyong

  • ©Fong Wee Teck, Chin Ching Ling, Farzam Farbiz, and Huang Zhiyong

  • ©Fong Wee Teck, Chin Ching Ling, Farzam Farbiz, and Huang Zhiyong

Title:


    Ungrounded haptic rendering device for torque simulation in virtual tennis

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Entry Number: 26


Description:


    We present an ungrounded haptic device to render a variety of tennis ball impact accelerations and torques in an interactive virtual tennis system. Impact forces are common in real life, particularly in sports. Our daily experiences shows that our sensory system can discern the variations in these resulting strong vibrations. Common eccentric mass vibration motor-based haptics cannot create the magnitudes of the force and torque, or the variations in frequencies and waveforms, or the immediacy of such impacts[Yao and Hayward 2010]. Our device overcomes the above deficiencies and increases the richness of user experience in virtual reality.

    Novel features are the A-shape vibration element actuated using dual push-pull solenoids, and utilizing the inertia of the racket rim to act as an counterweight to generate torque at the handle. The rim has low mass, but acting like a ring, it has a large moment of inertia, which make it as an effective counterweight that is also light. Compared to our previous work [Fong et al. 2011], the ability to render high accelerations of different frequencies and waveforms is extended to rendering torque at the handle.

References:


    FONG, W., CHER, J., FARBIZ, F., AND HUANG, Z. 2011. Variable frequency 60-g haptic renderer for virtual tennis simulation. In SIGGRAPH Asia 2011 Posters, 54.

    YAO, H., AND HAYWARD, V. 2010. Design and analysis of a recoil-type vibrotactile transducer. The Journal of the Acoustical Society of America 128, 619–627.


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©Fong Wee Teck, Chin Ching Ling, Farzam Farbiz, and Huang Zhiyong ©Fong Wee Teck, Chin Ching Ling, Farzam Farbiz, and Huang Zhiyong ©Fong Wee Teck, Chin Ching Ling, Farzam Farbiz, and Huang Zhiyong

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