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Dimensional synthesis of four bar linkage for function generation with velocity and acceleration constraints

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Sommario

Il problema della sintesi dimensionale di un quadrilatero articolato per la generazione di funzioni assegnate può essere risolto in maniera completa tenendo conto non solo delle caratteristiche cinematiche del meccanismo ma anche di alcuni aspetti dinamici del suo funzionamento. In particolare nel presente studio si considerano le velocità ed accelerazioni di alcuni membri del meccanismo controllandone i valori massimi al fine di limitare l'entità delle forze d'inerzia.

Questo problema di sintesi, che assume particolare importanza nel progetto di meccanismi ad altre velocità è risolto mediante una tecnica di ottimizzazione del tipo della funzione di penalità. Si presentano alcuni risultati numerici relativi a differenti condizioni di vincolo e di progetto iniziale.

Summary

The dimensional synthesis of a four bar linkage for function generation, usually performed by considering only kinematic characteristics of the mechanism, may be improved by accounting also for its dynamical behavior. In the present study the maximum values of velocity and acceleration are controlled in order to limit the inertial forces, as required in the design of high-speed mechanisms. At this purpose an optimization technique, based on penalty function method, has been adopted. Several numerical results for different choices for constraints and initial design are presented and discussed.

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Author notes

  1. Z. Y. Dong

    Present address: Istituto di Macchine, Università di Roma, Italy

  2. M. Di Giacinto

    Present address: Istituto Propulsione Aerospaziale, Università di Roma, Italy

Authors and Affiliations

  1. Istituto di Meccanica Applicata alle Macchine, Università di Roma, Italy

    G. Guj

  2. The Shaanxi Mechanical Engineering Institute, Xian, China

    Z. Y. Dong

Authors
  1. G. Guj
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  2. Z. Y. Dong
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  3. M. Di Giacinto
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Guj, G., Dong, Z.Y. & Di Giacinto, M. Dimensional synthesis of four bar linkage for function generation with velocity and acceleration constraints. Meccanica 16, 210–219 (1981). https://doi.org/10.1007/BF02128323

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  • DOI: https://doi.org/10.1007/BF02128323

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