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11.发明授权System and method for magnetorheological-fluid damping utilizing porous media 有权利用多孔介质进行磁流变流体阻尼的系统和方法公开(公告)号：US07874407B2
公开(公告)日：2011-01-25
申请号：US11818582
申请日：2007-06-15
申请人： Norman M. Wereley , Wei Hu , Eugene Cook , Alan L. Browne
发明人： Norman M. Wereley , Wei Hu , Eugene Cook , Alan L. Browne
CPC分类号： F16F9/537 , F16F9/3415
摘要： A magnetorheological fluid damping system includes a hydraulic cylinder, a piston head, a piston rod, and a porous valve. The hydraulic cylinder is configured for disposing magnetorheological fluid therein. The piston head is disposed within the hydraulic cylinder and has first and second sides defining first and second chambers within the hydraulic cylinder. The piston head is configured to be in sliding engagement with the hydraulic cylinder. The piston rod is connected to the piston head. The porous valve includes a magnetorheological fluid pathway, has first and second fluid connections, and is configured to dampen the flow of the magnetorheological fluid between the first and second fluid connections in accordance with a magnetic field. The first fluid connection is fluidly connected to the first chamber and the second fluid connection is fluidly connected to the second chamber. The magnetorheological fluid pathway at least partially directs magnetorheological fluid flow through a porous media.
摘要翻译： 磁流变流体阻尼系统包括液压缸，活塞头，活塞杆和多孔阀。 液压缸被配置为在其中设置磁流变流体。 活塞头设置在液压缸内，并且具有在液压缸内限定第一和第二室的第一和第二侧。 活塞头构造成与液压缸滑动接合。 活塞杆连接到活塞头。 多孔阀包括磁流变流体通道，具有第一和第二流体连接，并且被配置为根据磁场抑制第一和第二流体连接之间的磁流变流体的流动。 第一流体连接件流体地连接到第一腔室，而第二流体连接件流体连接到第二腔室。 磁流变流体通路至少部分地引导磁流变流体流过多孔介质。
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公开(公告)号：US20140152066A1
公开(公告)日：2014-06-05
申请号：US13916227
申请日：2013-06-12
摘要： A compact and failsafe magnetorheological energy absorber design including both a light weight piston (LWP) embodiment in which linear motion is subjected to a linear damping force, and a light weight rotary vane (LWRV)embodiment in which linear motion is converted into rotary motion and is subjected to a rotary damping force. Both embodiments allow increased damper stroke within a compact mechanical profile. A new lightweight Magnetorheological energy attenuation system (LMEAS) for a vehicle seat is also disclosed using the new LMRW MREA.
摘要翻译： 包括直线运动受到线性阻尼力的轻量级活塞（LWP）实施例和将直线运动转换成旋转运动的轻质旋转叶片（LWRV）实施例的致密和故障安全的磁流变能量吸收器设计， 受到旋转阻尼力的影响。 两个实施例允许在紧凑的机械轮廓内增加阻尼器行程。 还使用新的LMRW MREA公开了一种用于车辆座椅的新型轻量级磁流变能量衰减系统（LMEAS）。
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公开(公告)号：US08401740B2
公开(公告)日：2013-03-19
申请号：US12661435
申请日：2010-03-17
IPC分类号： B60R21/015
CPC分类号： B60N2/4242 , B60N2/42736 , B60N2/4279 , B60N2/501 , B60N2/502 , B60N2/522 , F16F9/53 , F16F15/002
摘要： An adaptive energy absorption system for a vehicle seat that functions in dual-modes, including a primary mode during severe (shock event) operation and a secondary mode during normal (non-shock event) operation. When operating in primary mode, the present system automatically adjusts a VPEA in real-time to keep loads transmitted to the occupant's body below acceptable injury threshold levels, and can recover to perform said function for multiple shock events. When operating in secondary mode the system reduces vehicle vibration transmitted to the occupant, thereby reducing fatigue and increasing situational awareness.
摘要翻译： 一种用于车辆座椅的自适应能量吸收系统，其在双重模式下工作，包括在严重（休克事件）操作期间的主模式和正常（非冲击事件）操作期间的次模式。 当在主模式下工作时，本系统实时自动调整VPEA，以将负载传输给乘客的身体低于可接受的伤害阈值水平，并可恢复执行多次冲击事件的所述功能。 当在二次模式下操作时，系统减少传递给乘员的车辆振动，从而减少疲劳和增加情境意识。
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14.发明授权Method of designing magnetorheological fluid energy absorbing device using hydromechanical analysis 有权使用水力机械分析设计磁流变流体能量吸收装置的方法公开(公告)号：US07930150B2
公开(公告)日：2011-04-19
申请号：US11969546
申请日：2008-01-04
申请人： Alan L. Browne , Nancy L. Johnson , Norman M. Wereley , Young Tai Choi , Wei Hu , Min Mao
发明人： Alan L. Browne , Nancy L. Johnson , Norman M. Wereley , Young Tai Choi , Wei Hu , Min Mao
IPC分类号： G06F17/50
CPC分类号： G06F17/5018 , G06F2217/16 , Y02T10/82
摘要： A method of designing a magnetorheological (MR) fluid energy absorbing damper is provided that uses hydromechanical analysis with lumped parameters to allow a determination as to whether a potential damper design will provide predetermined characteristics, such as a desired dynamic force range and maximum piston velocity, with a selected MR fluid and yield stress and preferably meeting predetermined geometric limitations.
摘要翻译： 提供了一种设计磁流变（MR）流体能量吸收阻尼器的方法，其使用具有集总参数的液压机械分析来确定潜在的阻尼器设计是否将提供预定的特性，例如期望的动态力范围和最大活塞速度， 具有选定的MR流体和屈服应力，并且优选地满足预定的几何限制。
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公开(公告)号：US20080156602A1
公开(公告)日：2008-07-03
申请号：US11819875
申请日：2007-06-29
CPC分类号： F16F9/53 , B60N2/4242 , B60N2/42736 , B60N2/501 , B60N2/508 , B60N2/522
摘要： An adaptive energy absorption system for a vehicle seat is disclosed, utilizing an adaptive energy absorber or variable profile energy absorber (VPEA) for mitigating occupant injury due to extreme vehicle movement (e.g., during a vehicle shock event), and/or for mitigating vibration experienced by an occupant of the vehicle seat during normal vehicle operating conditions. Various configurations of dual-goal energy absorption apparatuses using both VPEA and fixed load energy absorbers (FLEAs) that enable both shock mitigation and vibration isolation are disclosed. A semi-active control absorption system, comprising a VPEA and FPEA configured to work in series, is also disclosed.
摘要翻译： 公开了一种用于车辆座椅的自适应能量吸收系统，其利用自适应能量吸收器或可变轮廓能量吸收器（VPEA）来减轻由极端车辆运动（例如，在车辆冲击事件期间）引起的乘员伤害和/或减轻振动 在正常的车辆操作条件期间由车辆座椅的乘客经历。 公开了使用能够实现减震和隔振的VPEA和固定负载能量吸收器（FLEA）的双目标能量吸收装置的各种配置。 还公开了一种半主动控制吸收系统，其包括被配置为串联工作的VPEA和FPEA。
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公开(公告)号：US09109654B2
公开(公告)日：2015-08-18
申请号：US13916227
申请日：2013-06-12
摘要： A compact and failsafe magnetorheological energy absorber design including both a light weight piston (LWP) embodiment in which linear motion is subjected to a linear damping force, and a light weight rotary vane (LWRV) embodiment in which linear motion is converted into rotary motion and is subjected to a rotary damping force. Both embodiments allow increased damper stroke within a compact mechanical profile. A new lightweight Magnetorheological energy attenuation system (LMEAS) for a vehicle seat is also disclosed using the new LMRW MREA.
摘要翻译： 包括直线运动受到线性阻尼力的轻量级活塞（LWP）实施例和将直线运动转换成旋转运动的轻质旋转叶片（LWRV）实施例的致密和故障安全的磁流变能量吸收器设计， 受到旋转阻尼力的影响。 两个实施例允许在紧凑的机械轮廓内增加阻尼器行程。 还使用新的LMRW MREA公开了一种用于车辆座椅的新型轻量级磁流变能量衰减系统（LMEAS）。
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公开(公告)号：US07900755B2
公开(公告)日：2011-03-08
申请号：US11864107
申请日：2007-09-28
申请人： Alan L. Browne , John C. Ulicny , Chandra S. Namuduri , Nancy L. Johnson , Norman M. Wereley , Young Tai Choi , Wei Hu , Min Mao
发明人： Alan L. Browne , John C. Ulicny , Chandra S. Namuduri , Nancy L. Johnson , Norman M. Wereley , Young Tai Choi , Wei Hu , Min Mao
IPC分类号： F16F9/53
CPC分类号： F16F9/537
摘要： An energy absorbing device is provided that includes a damper assembly having inner and outer concentric tubes and a piston movable within the inner tube. The damper assembly is configured to form bi-fold valve-type cavities to operatively connect an inner chamber of the inner tube with an outer chamber formed between the inner and outer tubes. A magnetorheological fluid fills the chambers and the bi-fold valve-type cavities. The magnetorheological fluid preferably contains coated magnetic particles at about 10 to 60 percent by volume. Electrical coils adjacent the bi-fold valves are selectively energizable to such that the energy absorbing device provides a tunable damping force, preferably over the entire range of velocities of the piston, especially in automotive applications.
摘要翻译： 提供了一种能量吸收装置，其包括具有内部和外部同心管的阻尼器组件和可在内部管内移动的活塞。 阻尼器组件被构造成形成双重阀型腔，以将内管的内腔与形成在内管和外管之间的外室可操作地连接。 磁流变流体填充腔室和双折阀型空腔。 磁流变液优选含有约10至60体积％的涂覆磁性颗粒。 邻近双重阀的电气线圈选择性地被激励，使得能量吸收装置优选地在活塞的整个速度范围内提供可调谐阻尼力，特别是在汽车应用中。
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18.发明申请公开(公告)号：US20090177446A1
公开(公告)日：2009-07-09
申请号：US11969546
申请日：2008-01-04
申请人： Alan L. Browne , Nancy L. Johnson , Norman M. Wereley , Young Tai Choi , Wei Hu , Min Mao
发明人： Alan L. Browne , Nancy L. Johnson , Norman M. Wereley , Young Tai Choi , Wei Hu , Min Mao
CPC分类号： G06F17/5018 , G06F2217/16 , Y02T10/82
摘要： A method of designing a magnetorheological (MR) fluid energy absorbing damper is provided that uses hydromechanical analysis with lumped parameters to allow a determination as to whether a potential damper design will provide predetermined characteristics, such as a desired dynamic force range and maximum piston velocity, with a selected MR fluid and yield stress and preferably meeting predetermined geometric limitations.
摘要翻译： 提供了一种设计磁流变（MR）流体能量吸收阻尼器的方法，其使用具有集总参数的液压机械分析来确定潜在的阻尼器设计是否将提供预定的特性，例如期望的动态力范围和最大活塞速度， 具有选定的MR流体和屈服应力，并且优选地满足预定的几何限制。
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公开(公告)号：US08904919B2
公开(公告)日：2014-12-09
申请号：US12955242
申请日：2010-11-29
CPC分类号： A61F2/08 , A61F2002/0894 , A61F2002/5066 , F15B15/103
摘要： An Extensile Fluidic Muscle Actuator (FMA) that changes the normal direction of force and motion, achieving compressive force generation and extensile motion output with just a small increase in friction, weight, and cost is disclosed. The motion conversion is accomplished by a pushrod that is attached to the inside end of one of the actuator's end fittings, and extends through the actuator body and slidably out through the other end fitting. The other end fitting is held stationary by a seal housing that contains a sealing element to retain internal fluid pressure as the actuator moves. A linear bearing may also be installed to keep the rod aligned and centered properly in the seal. Upon pressurization of the actuator, the flexible body of the actuator will expand radially, causing relative contractile motion between the two end fittings. However, as the two end fittings are drawn towards each other, the pushrod is extended.
摘要翻译： 公开了一种通过改变法向方向和运动的拉伸流体肌肉致动器（FMA），实现压缩力产生和伸展运动输出，同时摩擦，重量和成本仅有小幅增加。 运动转换是通过一个推杆来实现的，该推杆连接到致动器端部配件中的一个的内端，并且延伸穿过致动器本体并且可滑动地穿过另一端配件。 另一端配件通过密封壳体固定，该密封壳体包含密封元件，以在致动器移动时保持内部流体压力。 还可以安装线性轴承，以使杆保持对准并适当地居中在密封中。 在致动器加压时，致动器的柔性体将径向膨胀，引起两个端部配件之间的相对收缩运动。 然而，由于两端配件相互牵引，推杆延伸。
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公开(公告)号：US08307753B2
公开(公告)日：2012-11-13
申请号：US12456139
申请日：2009-06-11
IPC分类号： F01B19/04
CPC分类号： B23P11/005 , B21D39/04 , B63B1/248 , B63G8/18 , B63H25/382 , Y10T29/494 , Y10T29/5367 , Y10T29/53717
摘要： A fluidic artificial muscle actuator consisting of an inner elastic bladder surrounded by a braided filament sleeve and sealed off on either end with end fittings. Pressurization of the actuator produces force and/or motion through radial movement of the bladder and sleeve which forces the sleeve to move axially. Both contractile and extensile motions are possible depending on the geometry of the braided sleeve. The fluidic artificial muscle actuator is manufactured using a swaging process which plastically deforms swage tubes around the end fittings, braided sleeve, and pressure bladder, creating a strong mechanical clamping action that may be augmented with adhesive bonding of the components. The swaging system includes the swaging die and associated components which are used to plastically deform the swage tube during assembly of the actuator.
摘要翻译： 流体人造肌肉致动器由内部弹性囊包围，其由编织的丝束套管包围，并在两端用末端配件密封。 致动器的加压通过使套筒轴向移动的囊和套筒的径向运动产生力和/或运动。 取决于编织套管的几何形状，收缩和伸展运动都是可能的。 流体人造肌肉致动器使用模锻工艺制造，该锻造工艺使模具管围绕端部配件，编织套筒和压力囊塑性变形，产生强大的机械夹紧动作，其可以通过部件的粘合剂粘合来增强。 模锻系统包括型锻模具和相关联的部件，其用于在组装致动器期间使挤压管道塑性变形。
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