Transporting a ship over shallows of a watercourse
    1.
    发明授权
    Transporting a ship over shallows of a watercourse 失效
    将船运送到水道的浅层

    公开(公告)号:US06834604B2

    公开(公告)日:2004-12-28

    申请号:US10342865

    申请日:2003-01-15

    IPC分类号: B63C700

    CPC分类号: B63C1/02 B63B35/42

    摘要: A laden ship is transported across a shallow portion of a watercourse by a submergible floating vessel, while the ship is lifted upwardly within the water by means of a vessel platform placed under the hull. The vessel is preferably comprised of a multiplicity of rigid U-shape, separately floodable, buoyant sections, including end sections, which have self-propulsion. The several sections are pivotably interconnected, as by hinge assemblies, so the transporter platforms adjust to major up or down bends along the length of the hull, during lifting. The platforms are surfaced with a layer of resilient deformable material, or movable blocks, to accommodate local irregularities in the bottom of the ship.

    摘要翻译: 一艘满载的船舶由潜水的浮式船只运输在水道的浅部,而船舶则通过放置在船体下方的船只平台向上提升。 该容器优选地包括多个刚性的U形,单独可浸水的浮力部分,包括具有自推进力的端部部分。 几个部分通过铰链组件可枢转地相互连接,因此在提升期间,运输工具平台可以沿着船体的长度调整到主要的上下弯曲。 平台用一层弹性可变形材料或可移动块表面,以适应船底部的局部不规则。

    Method and system for designing a cutting tool
    2.
    发明授权
    Method and system for designing a cutting tool 失效
    切削刀具设计方法及系统

    公开(公告)号:US5377116A

    公开(公告)日:1994-12-27

    申请号:US724305

    申请日:1991-07-01

    摘要: A method of designing a cutting tool uses finite element numerical models to predict a response of the tool during a simulated cutting operation on a workpiece, and to simulate a chip-flow phenomenon occurring during the cutting operation. The chip-flow model incorporates representations of a fracture mechanism describing a chip separation phenomenon, a heat-generating mechanism describing a thermal coupling phenomenon, and a shear localization mechanism describing a shearing phenomenon wherein these phenomena occur during the cutting operation. The predicted tool response and the chip-flow simulation are evaluated by an artificial intelligence system to render rule-based judgments which are embodied in recommendations for continuously modifying the models and input design variables until the simulation and response converge to an optimal result.

    摘要翻译: 设计切削工具的方法使用有限元数值模型来预测模具在工件上的切割操作期间的响应,并且模拟在切割操作期间发生的切屑流现象。 芯片流模型包括描述芯片分离现象的断裂机构的表示,描述热偶合现象的发热机构以及描述剪切现象的剪切定位机制,其中在切割操作期间发生这些现象。 预测的工具响应和芯片流模拟由人工智能系统评估,以呈现基于规则的判断,这些判断体现在连续修改模型和输入设计变量的建议中,直到模拟和响应收敛于最佳结果。