公开(公告)号：US06291928B1

公开(公告)日：2001-09-18

申请号：US09461941

申请日：1999-12-15

申请人： Kenneth B. Lazarus ,  Jeffrey W. Moore ,  Erik Saarmaa ,  Eric Fitch ,  Carl Prestia ,  Edward F. Crawley

发明人： Kenneth B. Lazarus ,  Jeffrey W. Moore ,  Erik Saarmaa ,  Eric Fitch ,  Carl Prestia ,  Edward F. Crawley

IPC分类号： H01L4108

CPC分类号： H02N2/043

摘要： A hybrid actuator includes strain actuated elements that displace fluid to move a piston, with the elements forming a fluid housing, and being oriented and actuated to optimize force, stroke or bandwidth. In one preferred embodiment the elements are cylinders enclosing the fluid, with radial and axial components of strain-induced dimensional change adding together to enhance displacement. In another preferred embodiment, piezo bender elements produce large stroke, high bandwidth movements. Strokes of up to fifty percent of actuator length, and bandwidths above 500 Hz are achieved in light weight electrically actuated devices free of external piping or hydraulics. The actuator is readily integrated into a gate valve, sub-woofer, or other driven device.

摘要翻译： 混合致动器包括应变致动元件，其移动流体以移动活塞，其中元件形成流体壳体，并且被定向和致动以优化力，冲程或带宽。 在一个优选实施例中，元件是包围流体的圆柱体，应变引起的尺寸变化的径向和轴向分量加在一起以增加位移。 在另一个优选实施例中，压电弯曲元件产生大笔划，高带宽移动。 在不受外部管道或液压作用的轻型电动装置中实现高达致动器长度的50％的行程和500Hz以上的带宽。 致动器易于集成到闸阀，次低音扬声器或其他被驱动装置中。

公开(公告)号：US06485380B2

公开(公告)日：2002-11-26

申请号：US09759855

申请日：2001-01-12

申请人： Ronald Spangler ,  David Gilbert ,  Carl Prestia ,  Emanuele Bianchini ,  Kenneth B. Lazarus ,  Jeffrey W. Moore ,  Robert N. Jacques ,  Jonathan C. Allen ,  Farla M. Russo

发明人： Ronald Spangler ,  David Gilbert ,  Carl Prestia ,  Emanuele Bianchini ,  Kenneth B. Lazarus ,  Jeffrey W. Moore ,  Robert N. Jacques ,  Jonathan C. Allen ,  Farla M. Russo

IPC分类号： A63B4902

CPC分类号： A63B53/00 ,  A63B60/00 ,  A63B60/54 ,  A63C5/075

摘要： A golf club includes an electroactive assembly attached to the club and electrically tuned to capture energy from one or more vibrational modes with high efficiency. More generally, a sports implement includes an electroactive element, such as a piezoceramic sheet attached to the implement, and a circuit attached to the electroactive element. The circuit may be a shunt, or may include processing such as amplification and phase control to apply a driving signal which may compensate for strain sensed in the implement, or may simply alter the stiffness to affect performance. The electroactive element is located in a region of high strain to apply damping, and may include plural subassemblies mounted to capture energy in different planes, or to capture an asymmetric strain distribution while maintaining structural symmetry. In a ski the element captures between about one and five percent of the strain energy of the ski. The region of high strain may be found by modeling mechanics of the sports implement, or may be located by empirically mapping the strain distribution which occurs during use of the implement. In other embodiments, the electroactive elements may remove resonances, adapt performance to different situations, or enhance handling or comfort of the implement. Other embodiments include striking implements intended to hit a ball or object in play, such as mallets, bats and tennis racquets, wherein the strain elements may alter the performance, feel or comfort of the implement. The electroactive elements may be configured in sets to capture energy in different modes, and/or energy distributed along different directions.

摘要翻译： 高尔夫球杆包括附接到球杆的电动组件，并且被电调谐以从高效率的一个或多个振动模式捕获能量。 更一般地，运动器具包括电活性元件，例如附接到器具的压电陶瓷片和连接到电活性元件的电路。 该电路可以是分流器，或者可以包括诸如放大和相位控制的处理以施加可以补偿在工具中感测到的应变的驱动信号，或者可以简单地改变刚度以影响性能。 电活性元件位于高应变区域以施加阻尼，并且可以包括安装成在不同平面中捕获能量的多个子组件，或者捕获不对称应变分布同时保持结构对称性。 在滑雪板中，元素捕获滑雪板的约百分之一至百分之五的应变能量。 高应变区域可以通过运动器具的建模力学来发现，或者可以通过经验地绘制在使用中发生的应变分布来定位。 在其它实施例中，电活性元件可以去除谐振，适应不同情况的性能，或增强器具的处理或舒适度。 其他实施例包括旨在击打球或游戏中的对象的打击工具，例如槌，蝙蝠和网球拍，其中应变元件可改变工具的性能，感觉或舒适性。 电活性元件可以被配置成以不同模式捕获能量和/或沿着不同方向分布的能量。

公开(公告)号：US06196935B1

公开(公告)日：2001-03-06

申请号：US09057972

申请日：1998-04-09

申请人： Ronald Spangler ,  David Gilbert ,  Carl Prestia ,  Emanuele Bianchini ,  Kenneth B. Lazarus ,  Jeffrey W. Moore ,  Robert N. Jacques ,  Jonathan C. Allen ,  Farla M. Russo

发明人： Ronald Spangler ,  David Gilbert ,  Carl Prestia ,  Emanuele Bianchini ,  Kenneth B. Lazarus ,  Jeffrey W. Moore ,  Robert N. Jacques ,  Jonathan C. Allen ,  Farla M. Russo

IPC分类号： A63B5300

CPC分类号： A63B53/00 ,  A63B60/00 ,  A63B60/54 ,  A63C5/075

摘要： A golf club includes an electroactive assembly attached to the club and electrically tuned to capture energy from one or more vibrational modes with high efficiency. More generally, a sports implement includes an electroactive element, such as a piezoceramic sheet attached to the implement, and a circuit attached to the electroactive element. The circuit may be a shunt, or may include processing such as amplification and phase control to apply a driving signal which may compensate for strain sensed in the implement, or may simply alter the stiffness to affect performance. The electroactive element is located in a region of high strain to apply damping, and may include plural subassemblies mounted to capture energy in different planes, or to capture an asymmetric strain distribution while maintaining structural symmetry. In a ski the element captures between about one and five percent of the strain energy of the ski. The region of high strain may be found by modeling mechanics of the sports implement, or may be located by empirically mapping the strain distribution which occurs during use of the implement. In other embodiments, the electroactive elements may remove resonances, adapt performance to different situations, or enhance handling or comfort of the implement. Other embodiments include striking implements intended to hit a ball or object in play, such as mallets, bats and tennis racquets, wherein the strain elements may alter the performance, feel or comfort of the implement. The electroactive elements may be configured in sets to capture energy in different modes, and/or energy distributed along different directions.

摘要翻译： 高尔夫球杆包括附接到球杆的电动组件，并且被电调谐以从高效率的一个或多个振动模式捕获能量。 更一般地，运动器具包括电活性元件，例如附接到器具的压电陶瓷片和连接到电活性元件的电路。 该电路可以是分流器，或者可以包括诸如放大和相位控制的处理以施加可以补偿在工具中感测到的应变的驱动信号，或者可以简单地改变刚度以影响性能。 电活性元件位于高应变区域以施加阻尼，并且可以包括安装成在不同平面中捕获能量的多个子组件，或者捕获不对称应变分布同时保持结构对称性。 在滑雪板中，元素捕获滑雪板的约百分之一至百分之五的应变能量。 高应变区域可以通过运动器具的建模力学来发现，或者可以通过经验地绘制在使用中发生的应变分布来定位。 在其它实施例中，电活性元件可以去除谐振，适应不同情况的性能，或增强器具的处理或舒适度。 其他实施例包括旨在击打球或游戏中的对象的打击工具，例如槌，蝙蝠和网球拍，其中应变元件可改变工具的性能，感觉或舒适性。 电活性元件可以被配置成以不同模式捕获能量和/或沿着不同方向分布的能量。

公开(公告)号：US6086490A

公开(公告)日：2000-07-11

申请号：US54940

申请日：1998-04-03

申请人： Ronald Spangler ,  David Gilbert ,  Carl Prestia ,  Emanuele Bianchini ,  Kenneth B. Lazarus ,  Jeffrey W. Moore ,  Robert N. Jacques ,  Jonathan C. Allen ,  Farla M. Russo

发明人： Ronald Spangler ,  David Gilbert ,  Carl Prestia ,  Emanuele Bianchini ,  Kenneth B. Lazarus ,  Jeffrey W. Moore ,  Robert N. Jacques ,  Jonathan C. Allen ,  Farla M. Russo

IPC分类号： A63B53/14 ,  A63B49/08 ,  A63B53/00 ,  A63B59/00 ,  A63C5/00 ,  A63C5/075

CPC分类号： A63C5/075 ,  A63B60/54 ,  A63B2208/12 ,  A63B53/00

摘要： A baseball bat includes an electroactive assembly attached near the handle and electrically tuned to capture energy from several modes with high efficiency. More generally, a sports implement includes an electroactive element, such as a piezoceramic sheet attached to the implement, and a circuit attached to the electroactive element. The circuit may be a shunt, or may include processing such as amplification and phase control to apply a driving signal which may compensate for strain sensed in the implement, or may simply alter the stiffness to affect performance. In a ski, the electroactive element is located near to the root in a region of high strain to apply damping, and the element captures between about one and five percent of the strain energy of the ski. The region of high strain may be found by modeling mechanics of the sports implement, or may be located by empirically mapping the strain distribution which occurs during use of the implement. In other embodiments, the electroactive elements may remove resonances, adapt performance to different situations, or enhance handling or comfort of the implement. Other embodiments include striking implements intended to hit a ball or object in play, such as mallets, golf clubs and tennis racquets, wherein the strain elements may alter the performance, feel or comfort of the implement. The electroactive elements may be configured in sets to capture energy in different modes, and/or along different directions.

摘要翻译： 棒球棒包括附接在手柄附近的电活性组件，并被电调谐以从高效率的几种模式捕获能量。 更一般地，运动器具包括电活性元件，例如附接到器具的压电陶瓷片和连接到电活性元件的电路。 该电路可以是分流器，或者可以包括诸如放大和相位控制的处理以施加可以补偿在工具中感测到的应变的驱动信号，或者可以简单地改变刚度以影响性能。 在滑雪板中，电活性元件位于高应变区域的根部附近以施加阻尼，并且该元件捕获滑雪板的约百分之一至百分之五的应变能量。 高应变区域可以通过运动器具的建模力学来发现，或者可以通过经验地绘制在使用中发生的应变分布来定位。 在其它实施例中，电活性元件可以去除谐振，适应不同情况的性能，或增强器具的处理或舒适度。 其他实施例包括旨在击打游戏中的球或物体的打击工具，例如槌，高尔夫球杆和网球，其中应变元件可改变工具的性能，感觉或舒适性。 电活性元件可以被配置成以不同模式和/或沿不同方向捕获能量。