Rigid body assembly impact models for adiabatic cutoff equipments

• Autorzy: Massenzio M. , Pashah S. , Jaquelin E. , Bennani A.
• Języki publikacji: EN

Abstrakty

EN

This paper is concerned with systems consisting of components colliding with each other. In particular, a high velocity adiabatic impact cutoff machinę is investigated. For generał understanding of the impact dynamics (affected by a large number of parameters), the mech-anisms are modelled in a simplified and accurate manner. Two simple models are developed: the energy-balance model and the spring-mass model. The energy-balance model is based on the principle of total energy conservation. It provides only the punch minimum kinetic energy reąuired for efEcient cutting. Concerning the spring-mass model, the different components are represented by rigid masses and their deformations are modelled by springs (linear or non-linear in the case of contact stiffness). The resulting non-linear eąuations are solved using the Newmark numerical teclmiąue. The impact force, velocity, displacement and acceleration histories are calculated what makes possible a fine description of the cutoff cycle steps. The two models are helpful for both the design and tuning of the mechanisms involving impacts between their components.

Słowa kluczowe

EN

impact; rigid body; adiabatic cutoff; spring-mass model; energy-balance model

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Engineering Transactions
• Rocznik: 2008
• Tom: Vol. 56, iss. 2
• Strony: 101--116
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr.

Twórcy

autor

Massenzio M.

autor

Pashah S.

autor

Jaquelin E.

autor

Bennani A.

• Universite de Lyon, Lyon, F-69003, France

Bibliografia

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