Efficient technique for computing the sensitivities of reciprocating engine dynamics to dimensional tolerances

Alok Sinha, B. J. Gilmore, V. Kohli

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    An efficient method has been developed to determine the steady stat response of an internal combustion engine, which is governed by an nonlinear differential equation with discontinuous forcing function due to the nature of the pressure-volume (P-V) diagram. Unlike previously reported methods for dynamically driven mechanical systems, this approach can accurately and efficiently predict the sensitivities of an engine's output to dimensional tolerances. Hence, this technique is well suited for the development of an optimal tolerance allocation scheme based on nonlinear programming. The validity of the method which is based on the alternating frequency/ time (AFT) domain techniques has been established by comparison with results from numerical integration of differential equation of motion This method directly yields the mean crank speed and Fourier coefficients of temporal variations in engine's outputs such as crank's speed and the driving torque.

    Original languageEnglish (US)
    Title of host publicationAdvances in Design Automation
    EditorsMo Shahinpoor, H.S. Tzou
    PublisherPubl by ASME
    Pages349-357
    Number of pages9
    Volume65 pt 1
    ISBN (Print)0791811816
    StatePublished - 1993
    Event14th Biennial Conference on Mechanical Vibration and Noise - Albuquerque, NM, USA
    Duration: Sep 19 1993Sep 22 1993

    Other

    Other14th Biennial Conference on Mechanical Vibration and Noise
    CityAlbuquerque, NM, USA
    Period9/19/939/22/93

    Fingerprint

    Differential equations
    Engines
    Nonlinear programming
    Internal combustion engines
    Equations of motion
    Torque

    All Science Journal Classification (ASJC) codes

    • Engineering(all)

    Cite this

    Sinha, A., Gilmore, B. J., & Kohli, V. (1993). Efficient technique for computing the sensitivities of reciprocating engine dynamics to dimensional tolerances. In M. Shahinpoor, & H. S. Tzou (Eds.), Advances in Design Automation (Vol. 65 pt 1, pp. 349-357). Publ by ASME.
    Sinha, Alok ; Gilmore, B. J. ; Kohli, V. / Efficient technique for computing the sensitivities of reciprocating engine dynamics to dimensional tolerances. Advances in Design Automation. editor / Mo Shahinpoor ; H.S. Tzou. Vol. 65 pt 1 Publ by ASME, 1993. pp. 349-357
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    abstract = "An efficient method has been developed to determine the steady stat response of an internal combustion engine, which is governed by an nonlinear differential equation with discontinuous forcing function due to the nature of the pressure-volume (P-V) diagram. Unlike previously reported methods for dynamically driven mechanical systems, this approach can accurately and efficiently predict the sensitivities of an engine's output to dimensional tolerances. Hence, this technique is well suited for the development of an optimal tolerance allocation scheme based on nonlinear programming. The validity of the method which is based on the alternating frequency/ time (AFT) domain techniques has been established by comparison with results from numerical integration of differential equation of motion This method directly yields the mean crank speed and Fourier coefficients of temporal variations in engine's outputs such as crank's speed and the driving torque.",
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    Sinha, A, Gilmore, BJ & Kohli, V 1993, Efficient technique for computing the sensitivities of reciprocating engine dynamics to dimensional tolerances. in M Shahinpoor & HS Tzou (eds), Advances in Design Automation. vol. 65 pt 1, Publ by ASME, pp. 349-357, 14th Biennial Conference on Mechanical Vibration and Noise, Albuquerque, NM, USA, 9/19/93.

    Efficient technique for computing the sensitivities of reciprocating engine dynamics to dimensional tolerances. / Sinha, Alok; Gilmore, B. J.; Kohli, V.

    Advances in Design Automation. ed. / Mo Shahinpoor; H.S. Tzou. Vol. 65 pt 1 Publ by ASME, 1993. p. 349-357.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

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    Sinha A, Gilmore BJ, Kohli V. Efficient technique for computing the sensitivities of reciprocating engine dynamics to dimensional tolerances. In Shahinpoor M, Tzou HS, editors, Advances in Design Automation. Vol. 65 pt 1. Publ by ASME. 1993. p. 349-357