Xu Zhang

Harbin Engineering University, Charbin, Heilongjiang Sheng, China

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Publications (4)2.24 Total impact

  • Xu Zhang · Jia-Tai Zhang · Sheng-Hai Hu
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    ABSTRACT: A mechanical system for quickfeeding shells in gunboat is particularly analyzed from a dynamic view. 3D nonlinear structural simulation is completed by means of dynamic explicit finite element method. Analysis results prove that the mechanical structure is feasible substantially, the material of outer surfaces near striking and overstress position should be improved and measures should be taken to avoid parts high temperature. And all analysis results give a principal theoretical basis for further work.
    No preview · Article · Dec 2002 · Journal of Marine Science and Application
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    ABSTRACT: In this paper, a smart crank and slider mechanism is analyzed mostly from a dynamic view. By means of dynamic explicit finite element method, 3D nonlinear structure is simulated. It is proved that the mechanism can effectively accomplish smart movement prescribed. And in order to ensure reciprocal movement with higher frequency, measures should be taken to avoid over heating of parts. Compared with internal energy, kinetic energy of total rigid body is dominating, andY direction equivalent rigid velocity is much higher thanX direction velocity. Equivalent rigid velocity of all parts is consistent with respective movement condition. For both energy and velocity, slider effect is dominating. Three direction equivalent inertia force oscillates. Force amplitude inY-direction is comparitively the greatest.
    No preview · Article · Nov 2002 · Journal of Marine Science and Application
  • Xu Zhang · Jia-Tai Zhang · Gang Liu · S J Yuan · Z R Wang
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    ABSTRACT: On the basis of the principle of dieless hydrobulging technology, a novel hydrobulging technology for manufacturing hyperbolic plates is proposed. First, a toroidal pipe elbow or a partial toroidal pipe elbow is formed, then the single hydrobulged structure can be cut up into some desired plates. It is proved by experiments and finite element simulation that manufacturing technology of hyperbolic plates adopting integrated hydrobulging forming technology is feasible.
    No preview · Article · Jun 2002 · Journal of Marine Science and Application
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    ABSTRACT: The integral hydro-bulge forming (IHBF) technology of spherical vessels has achieved an increasing application in a variety of fields. Recently IHBF has been extended into the forming of an ellipsoidal shell, the center part of a container head shell and a ring shell. In this paper, the process, application, development and numerical simulation of IHBF are discussed.
    No preview · Article · May 2000 · Journal of Materials Processing Technology