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    Cable stress and fatigue control
    2.
    发明授权
    Cable stress and fatigue control 失效
    电缆应力和疲劳控制

    公开(公告)号：US4158283A

    公开(公告)日：1979-06-19

    申请号：US757300

    申请日：1977-01-05

    申请人： Milton A. Nation

    发明人： Milton A. Nation

    IPC分类号： D07B1/06 ,  D07B5/00

    CPC分类号： D07B5/00 ,  D07B1/06 ,  D07B1/0693 ,  Y10T428/12424 ,  Y10T428/12743

    摘要： Titanium aluminum, non-frangible structural wire, when assembled into axially symmetric and contrahelically wrapped cable has high fatigue strength and loading linearity for uniquely high work efficiency. Dynamic stresses are moderated by more suitable mechanical, physical and dynamic properties so that stress and fatigue control are passively achieved. Structural wire is specially processed from selected titanium base alloys having high drop test tear energy, wherein new construction designs and specifications are then suitable and used during cable assembly to substantially advance work performance and increase service life.Work characteristics are basically improved and changed by (1) adding elastic and constructional stretch, (2) materially reducing mass density, and (3) loading cable with hard and soft spring. These cable attributes translate into much higher fatigue strength, mainly by absorbing, storing and dissipating induced work loads at rapid rates.A new construction characteristic is enlarged cores for both structural and electrical reasons wherein stress stratification, stress transfer and distribution between layers, and stress propagation and vibration are changed, wherein stretch is increased and loading dynamically counterbalanced. Internal stresses are also reduced in the interrelated process by greater component compliance.Variably designed core and outer strand constructions including composite cable are used to increase work capacity and service life, and to reduce cost. Non-frangible, aluminum wire may be used as components in cable constructions, interchangeably with titanium wire as conductor and structural components in many cases in this invention.

    摘要翻译： 钛铝，非易碎结构线组装成轴对称和反缠绕电缆具有高疲劳强度和负载线性度，以达到独特的高工作效率。 动态应力通过更合适的机械，物理和动态性能来缓和，从而实现应力和疲劳控制。 结构线由具有高跌落试验撕裂能量的所选钛基合金进行特殊加工，其中新的结构设计和规格适用于电缆组装期间并大大提高工作性能并延长使用寿命。

    Fail-safe cable and effect of non-frangible wire in cable structures
    5.
    发明授权
    Fail-safe cable and effect of non-frangible wire in cable structures 失效
    电缆故障安全电缆和不易碎电线的影响

    公开(公告)号：US4154050A

    公开(公告)日：1979-05-15

    申请号：US757551

    申请日：1977-01-05

    申请人： Milton A. Nation

    发明人： Milton A. Nation

    IPC分类号： D07B1/06 ,  D07B5/00

    CPC分类号： D07B5/00 ,  D07B1/06

    摘要： A synthesis of four (4) factors is applied, through a test approach, to eliminate wire fractures, and fractures and overstressing of other cable components. This approach shows this "crucial flaw" is prevented from occurring amidst other flaws within the "flaw state" of the complex structure of work performing cable. These other flaws prove to be minor during the cable's service life.Non-frangible, ductile aluminum (al) and titanium (ti) wire are used in the cable assembly wherein their high dynamic properties and other attributes prevent wire fractures, and neutralize or reduce wire wear, depending upon load level, to change and improve the cable's "flaw state" so that a "fail-safe" cable may be designed to provide a protracted service life.Steel and copper wire fail to qualify for "fail-safe" cable constructions due to their low dynamic properties and other flaws in the cable structure.

    摘要翻译： 通过测试方法应用四（4）个因素的综合，以消除线断裂，以及其他电缆部件的断裂和过应力。 这种方法表明，在工作执行电缆的复杂结构的“缺陷状态”中，防止其他缺陷发生“关键缺陷”。 在电缆使用寿命期间，这些其他缺陷证明是微不足道的。