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Filtering by: Subject Ice mechanics -- Mathematical models Remove constraint Subject: Ice mechanics -- Mathematical models Academic Affiliation Mechanical Engineering Remove constraint Academic Affiliation: Mechanical Engineering

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  • Parameters affecting mechanical collisions

    Creator:
    Aum, Ho Sung
    Abstract:
    Even though the elastic deformations that occur during the impact of colliding bodies may be small in comparison to their actual dimensions, they play an important role in mechanical collisions. During the time the bodies are in contact, elastic, friction, and inertia properties combine to produce a complex variation of...
    Resource Type:
    Dissertation
    Full Text:
    impulse and velocity changes that occur during contact. However, a considerably-simplified model captures

  • Rebound predictions of mechanical collisions

    Creator:
    Lai, Liang-Ju
    Abstract:
    Predictions of mechanical collisions between two bodies frequently cannot be completed by the impulse-momentum equation together with a complete description of the motion of the system at the initial contact. Additional account must be taken of the deformations and frictional interaction induced by the impulsive reaction force, where the bodies...
    Resource Type:
    Dissertation
    Full Text:
    , a considerably simplified, coupled, conservative model, which captures the essential

  • Rebound predictions for elastic collisions

    Creator:
    Liu, Pao-pao
    Abstract:
    In this paper, a numerical method is used to predict the response of an elastic body during a collision in which both normal and tangential impulses are important. Results are compared with those from simplified prediction procedures, which stem from the assumptions that the energy-returning capacity of the normal deformation...
    Resource Type:
    Dissertation
    Full Text:
    TRANSIENT DYNAMIC ANALYSIS IN THE ANSYS PROGRAM 37 4.1 Selection of time step size 37 4.2 Model description

  • Modelling root reinforcement in shallow forest soils

    Creator:
    Skaugset, Arne E.
    Abstract:
    A hypothesis used to explain the relationship between timber harvesting and landslides is that tree roots add mechanical support to soil, thus increasing soil strength. Upon harvest, the tree roots decay which reduces soil strength and increases the risk of management -induced landslides. The technical literature does not adequately support...
    Resource Type:
    Dissertation