专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5079920A Hydraulic shape memory material stress to hydraulic pressure transducer 失效
标题翻译：液压形状记忆材料对液压传感器的应力
公开(公告)号：US5079920A
公开(公告)日：1992-01-14
申请号：US563056
申请日：1990-08-06
申请人： Charles A. Whitehead , Kenneth N. Groom
发明人： Charles A. Whitehead , Kenneth N. Groom
IPC分类号： F03G7/06 , F16D65/14 , F16D65/28
CPC分类号： F03G7/065 , F16D2121/32 , F16D2125/10
摘要： A hydraulic shape memory material force converter is provided comprising a shape memory material. The force converter utilizes hydraulic units and a hydraulic fluid. The hydraulic unit is changed from a first position to a second position when the shape memory material, connected at one end to one end of the hydraulic unit and its other to a fixed point or a second end of the hydraulic unit, changes from a martensitic to an austenitic state upon heating. The hydraulic fluid responds to the movement of the hydraulic unit by moving from the hydraulic unit to a receiving device, which receiving device performs work due to the motion of the hydraulic fluid. Upon cooling the shape memory material to change it from the austenitic state back to the martensitic state, the hydraulic unit returns to its original position, with a biasing means being provided to return the hydraulic unit to its rest position.
摘要翻译：提供了包括形状记忆材料的液压形状记忆材料力转换器。力转换器使用液压单元和液压油。当形状记忆材料在液压单元的一端连接到液压单元的一端而另一端连接到液压单元的固定点或第二端的形状记忆材料从马氏体变化时，将液压单元从第一位置改变到第二位置在加热时达到奥氏体状态。液压流体通过从液压单元移动到接收装置来响应液压单元的运动，接收装置由于液压流体的运动而执行工作。在冷却形状记忆材料以将其从奥氏体状态改变回马氏体状态时，液压单元返回其初始位置，其中设置有偏压装置以将液压单元返回到其静止位置。

2. 发明授权

US06496765B1 Control system and method for payload control in mobile platform cranes 失效
标题翻译：移动平台起重机控制系统和有效负载控制方法
公开(公告)号：US06496765B1
公开(公告)日：2002-12-17
申请号：US09695815
申请日：2000-10-24
申请人： Rush D. Robinett, III , Kenneth N. Groom , John T. Feddema , Gordon G. Parker
发明人： Rush D. Robinett, III , Kenneth N. Groom , John T. Feddema , Gordon G. Parker
IPC分类号： G06F1900
CPC分类号： B66C13/063
摘要： A crane control system and method provides a way to generate crane commands responsive to a desired payload motion to achieve substantially pendulation-free actual payload motion. The control system and method apply a motion compensator to maintain a payload in a defined payload configuration relative to an inertial coordinate frame. The control system and method can further comprise a pendulation damper controller to reduce an amount of pendulation between a sensed payload configuration and the defined payload configuration. The control system and method can further comprise a command shaping filter to filter out a residual payload pendulation frequency from the desired payload motion.
摘要翻译：起重机控制系统和方法提供了一种响应于期望的有效载荷运动来产生起重机命令的方式，以实现基本无假定的实际有效载荷运动。控制系统和方法应用运动补偿器来相对于惯性坐标系将有效载荷维持在限定的有效载荷构造中。该控制系统和方法还可以包括一个摆式阻尼器控制器，用于减少检测到的有效载荷配置和所定义的有效载荷配置之间的摆动量。控制系统和方法还可以包括命令整形滤波器，以从期望的有效载荷运动中滤出残余有效载荷倾斜频率。

3. 发明授权

US06442439B1 Pendulation control system and method for rotary boom cranes 失效
标题翻译：旋转式起重机的调度控制系统及方法
公开(公告)号：US06442439B1
公开(公告)日：2002-08-27
申请号：US09339787
申请日：1999-06-24
申请人： Rush D. Robinett, III , Kenneth N. Groom , John T. Feddema , Gordon G. Parker
发明人： Rush D. Robinett, III , Kenneth N. Groom , John T. Feddema , Gordon G. Parker
IPC分类号： G05B1302
CPC分类号： B66C13/063
摘要： A command shaping control system and method for rotary boom cranes provides a way to reduce payload pendulation caused by real-time input signals, from either operator command or automated crane maneuvers. The method can take input commands and can apply a command shaping filter to reduce contributors to payload pendulation due to rotation, elevation, and hoisting movements in order to control crane response and reduce tangential and radial payload pendulation. A filter can be applied to a pendulation excitation frequency to reduce residual radial pendulation and tangential pendulation amplitudes.
摘要翻译：用于旋转式起重机的命令成形控制系统和方法提供了一种减少由实时输入信号引起的有效负载弯曲的方式，来自操作员指令或自动起重机操作。该方法可以采取输入命令，并且可以应用命令整形滤波器来减少由于旋转，升高和起重运动引起的有效负载弯曲的贡献，以便控制起重机响应并减少切向和径向有效载荷。滤波器可以应用于摆动激励频率，以减少残余径向摆动和切向摆动振幅。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式