公开(公告)号：US06473682B2

公开(公告)日：2002-10-29

申请号：US09987140

申请日：2001-11-13

申请人： Akira Nakamura

发明人： Akira Nakamura

IPC分类号： G01N356

CPC分类号： G01N19/02 ,  B60T8/172 ,  B60T2210/12

摘要： An apparatus and method that determines a maximum road friction coefficient for each wheel regardless of whether the tire is in a predetermined drive slip state, and whether the wheel is a driving wheel. The braking force of each wheel is calculated, and the longitudinal force of the tire of each wheel is calculated. Then, the driving force of the vehicle is calculated, and the lateral force of the tire of each wheel is calculated. Next, the reaction force of the road to each wheel is calculated, and the vertical load of each wheel is calculated. Finally, the ratio of variation in reaction force of the road to variation in composite slip ratio is calculated for each wheel. The sum of the ratio of the reaction force of the road to the vertical load, and the product of a predetermined coefficient and the ratio of variation in reaction force of the road to variation in composite slip ratios is calculated for each wheel as the maximum road friction coefficient.

摘要翻译： 无论轮胎是否处于预定的驱动滑移状态，以及轮是否是驱动轮，都确定每个车轮的最大道路摩擦系数的装置和方法。 计算每个车轮的制动力，并且计算每个车轮的轮胎的纵向力。 然后，计算车辆的驱动力，并且计算每个车轮的轮胎的横向力。 接下来，计算到每个车轮的道路的反作用力，并计算每个车轮的垂直载荷。 最后，对每个车轮计算道路反作用力与复合滑移率变化的比值。 对于每个车轮计算道路的反作用力与垂直载荷的比率的总和以及预定系数与道路的反作用力的变化与复合滑移比的变化的比率的乘积作为最大道路 摩擦系数。

公开(公告)号：US06230544B1

公开(公告)日：2001-05-15

申请号：US09227917

申请日：1999-01-08

申请人： Tooru Matsubara ,  Minoru Tanaka

发明人： Tooru Matsubara ,  Minoru Tanaka

IPC分类号： G01N356

CPC分类号： G01N3/567

摘要： To provide a very novel frictional wear testing apparatus and a frictional wear testing method by which injection material injected to a test piece is not dispersed, the frictional wear characteristics may be measured for a short period time in very simplified steps, a measurement error is suppressed with a good reproduceability and it is possible to make the apparatus small in size. The frictional wear testing apparatus for measuring anti-wear characteristics of a test piece such as a metal member or a ceramic member, includes a fixing mechanism for fixing the test piece and an injection mechanism for reducing a mass of the test piece by injecting injection material, in which grinding particles are mixed into liquid, to the test piece fixed to the fixing mechanism together with pressurized air.

摘要翻译： 为了提供一种非常新颖的摩擦磨损试验装置和摩擦磨损试验方法，通过该摩擦磨损试验方法，喷射到试验片上的注射材料不被分散，摩擦磨损特性可以以非常简化的步骤在短时间内测量，测量误差被抑制 具有良好的可再现性，并且可以使装置尺寸小。 用于测量诸如金属构件或陶瓷构件的测试件的抗磨损特性的摩擦磨损测试装置包括用于固定测试件的固定机构和用于通过注射注射材料来减少测试件的质量的注射机构 其中研磨颗粒与液体混合到与加压空气一起固定到固定机构的试件上。

公开(公告)号：US06804987B2

公开(公告)日：2004-10-19

申请号：US10141089

申请日：2002-05-07

申请人： Klaus D. Kloeppel ,  Gregor Paco Flores

发明人： Klaus D. Kloeppel ,  Gregor Paco Flores

IPC分类号： G01N356

CPC分类号： F16C17/24 ,  F16C17/107 ,  F16C33/107 ,  F16C2370/12 ,  G11B19/2018 ,  G11B33/1473

摘要： A method for detecting air-contamination within a hydrodynamic bearing used with a disc drive comprises in one embodiment, a method to detect air-contamination with hydrodynamic fluid by measuring operating signals of the disc drive between different external air pressure conditions (including ambient) on the hydrodynamic bearing and comparing the operating signals to predetermined threshold values. In another aspect, the invention provides an air-contamination detecting apparatus adapted to detect air-contamination within the fluid of a hydrodynamic bearing. In another aspect, the invention provides a method to determine air-contamination within hydrodynamic bearings using the change in disc drive input/output signals responsive to air-pressure changes on the hydrodynamic bearings.

摘要翻译： 用于检测与盘驱动器一起使用的流体动力轴承内的空气污染的方法包括在一个实施例中，通过在不同的外部空气压力条件（包括环境）之间测量盘驱动器的操作信号来检测流体动力流体的空气污染的方法 流体动力轴承，并将操作信号与预定阈值进行比较。 另一方面，本发明提供一种适于检测流体动力轴承的流体内的空气污染的空气污染检测装置。 另一方面，本发明提供一种使用响应于流体动力轴承上的空气压力变化的磁盘驱动器输入/输出信号的变化来确定流体动力轴承内的空气污染的方法。

公开(公告)号：US06227032B1

公开(公告)日：2001-05-08

申请号：US09222355

申请日：1998-12-29

申请人： David Joe Sell ,  Perry Edward Phelan

发明人： David Joe Sell ,  Perry Edward Phelan

IPC分类号： G01N356

CPC分类号： G01M13/021 ,  G01N3/56

摘要： A surface durability roll tester includes a rotatable tapered center roller and a plurality of rotatable tapered pinion rollers engaging the tapered centered roller to simulate gear teeth geometry and kinematics when the tapered center roller and the tapered pinion rollers are rotated. Sliding and Pure rolling motion can be simulated.

摘要翻译： 表面耐久性辊测试仪包括可旋转的锥形中心辊和多个可旋转的锥形小齿轮滚子，其接合锥形中心辊，以在锥形中心辊和锥形小齿轮滚轮旋转时模拟齿轮齿几何形状和运动学。 可以模拟滑动和纯滚动运动。

公开(公告)号：US06167745A

公开(公告)日：2001-01-02

申请号：US09137113

申请日：1998-08-20

申请人： Clive Hamer ,  John Hutchinson

发明人： Clive Hamer ,  John Hutchinson

IPC分类号： G01N356

CPC分类号： G01N19/02

摘要： Traction and/or friction testing apparatus is described having inter-engaging, rotating, traction surfaces, the surfaces being independently driven to generate traction or friction forces therebetween. A force measuring means is provided to measure the resulting traction or friction force. The apparatus is characterised in that all forces applying in the traction measurement loop are directly readable, or elastic, thus eliminating internal friction and allowing an accurate indication of the traction or friction force. The apparatus is particularly useful for measuring rolling/sliding traction and friction.

摘要翻译： 牵引和/或摩擦测试装置被描述为具有相互接合的，旋转的牵引表面，所述表面被独立地驱动以在它们之间产生牵引力或摩擦力。 提供力测量装置以测量所得到的牵引力或摩擦力。 该装置的特征在于，在牵引测量回路中施加的所有力都是直接可读或弹性的，从而消除内部摩擦并允许对牵引力或摩擦力的精确指示。 该装置对于测量滚动/滑动牵引力和摩擦力特别有用。

公开(公告)号：US06813926B2

公开(公告)日：2004-11-09

申请号：US10344175

申请日：2003-02-06

申请人： Kenneth Dunning ,  Ronald Ian Cotterill ,  David Michael Lomas

发明人： Kenneth Dunning ,  Ronald Ian Cotterill ,  David Michael Lomas

IPC分类号： G01N356

CPC分类号： G01B5/0002 ,  B23Q3/1543 ,  B25B11/002 ,  H01F2007/208

摘要： Wear of a rubbing member of a triction couple, such as an iron brake disc (15), which is subject to slow wear by frictional engagement by brake pads (17), is determined by attaching a carrier member (25) of wear determining arrangement (24) to the rubbing surface of the disc by electromagnet (28) and causing a transducer (33), such as magnetic displacement sensor having probe (33/2), to s an across the surface along a track (48). After an initial scan to map the surface the carrier is removed and re-attached after a period of brake usage, whereupon the surface is scanned again and wear assessed. The carrier is provided with feet (26/1) and biassed by a resilient electromagnet mount against the surface. If the surface to which the carrier is attached is subject to wear a re-attached carrier is unable to provide a reference for the transducer signals and an alignment template (46) is used to provide both location recesses for re-locating the carrier to scan along the track and datum recesses (52/1), through which the transducer probe is scanned, having flat floor regions (62) that are no subject to wear and define a datum plane (88) relative to which all transducer signals can be referred. To facilitate ease of use, the location recesses by removal of the alignment template and the template may be coupled to the carrier member for attachment to the surface together before the template is removed.

公开(公告)号：US06802203B1

公开(公告)日：2004-10-12

申请号：US10198975

申请日：2002-07-18

申请人： Bryan M. Averill ,  Nathan W. Butler ,  Oliver Heravi ,  Scott J. Pugliese

发明人： Bryan M. Averill ,  Nathan W. Butler ,  Oliver Heravi ,  Scott J. Pugliese

IPC分类号： G01N356

CPC分类号： G01M3/223 ,  F16J15/3296 ,  G01N3/56

摘要： A rotary seal machine is provided and includes a motor drive shaft which extends into and through a canister. A test seal specimen surrounds the shaft in the outer wall, and contaminant circulates through the canister for inducing leakage of the contaminant through the seal being tested. The seal and protruded shaft are visually exposed from outside the outer wall so that contaminant leakage past the seal can be visually detected.

摘要翻译： 提供旋转密封机，并且包括延伸进入和穿过罐的马达驱动轴。 测试密封件样品围绕外壁中的轴，污染物通过罐循环，以引起污染物通过被测密封件的泄漏。 密封和突出的轴从外壁的外部目视露出，从而可以目视检测出通过密封件的污染物泄漏。

公开(公告)号：US06612150B2

公开(公告)日：2003-09-02

申请号：US10091828

申请日：2002-03-06

申请人： Raghavan Srinivasan

发明人： Raghavan Srinivasan

IPC分类号： G01N356

CPC分类号： G01N19/02 ,  G01N3/56 ,  G01N33/34 ,  G01N33/346 ,  G01N2203/0025 ,  G01N2203/0032 ,  G01N2203/0053 ,  G01N2203/0623

摘要： The present invention provides a device for testing the abrasiveness of paper and other sheet materials. The device comprises a punching module, a feed module for moving the material, a holding module that holds the material while the punching module penetrated the material, and an instrument that records and analyzes the amount of force needed to punch through the material and then calculates the abrasive properties of the material. The punching module comprises a punching instrument for punching the material, a driving mechanism for operating the punching instrument, and a measurement system that measures the amount of the force required to punch the material. A method for using the device is also provided.

公开(公告)号：US06418776B1

公开(公告)日：2002-07-16

申请号：US09624500

申请日：2000-07-24

申请人： Norm Gitis ,  Michael Vinogradov ,  Vlad Dorfman

发明人： Norm Gitis ,  Michael Vinogradov ,  Vlad Dorfman

IPC分类号： G01N356

CPC分类号： G01N3/56 ,  G01N19/02 ,  G01N2203/0623

摘要： A universal friction tester for testing tribological properties of materials comprises a frame with a carriage sliding in vertical guides and supporting a slide moveable in a horizontal direction. The slide supports a stationary upper specimen, which engages a moveable lower specimen, located in a replaceable module attachable to a base plate of the frame. The modules may be of a rotary, reciprocating, a block-on-ring, or any other type, required for different test conditions. Testing can also be carried out with heating or with the supply of oil in the zone of contact between the specimens.

摘要翻译： 用于测试材料的摩擦学特性的通用摩擦试验机包括一个具有在垂直引导件上滑动并支撑在水平方向上可移动的滑块的滑架的框架。 滑动件支撑固定的上部试样，该固定的上部试样与可移动的下部试样接合，该试样位于可附接到框架底板的可替换模块中。 模块可以是不同测试条件所需的旋转，往复运动，阻塞环或任何其它类型的模块。 测试也可以通过加热或在样品之间的接触区域中供应油进行。

公开(公告)号：US06401058B1

公开(公告)日：2002-06-04

申请号：US09249019

申请日：1999-02-12

申请人： Ozgen Akalin ,  Golam M. Newaz

发明人： Ozgen Akalin ,  Golam M. Newaz

IPC分类号： G01N356

CPC分类号： G05B17/02 ,  G01M13/005 ,  G01N3/56 ,  G01N2203/0623

摘要： A bench testing system creates a predetermined wear and friction environment wherein wear elements, illustratively a piston ring and a cylinder liner, can be tested, along with lubricant properties, under simulated conditions of an internal combustion engine. The effects of speed and normal load can be examined under multiple lubrication regimes, and variations in the coefficient of friction can be observed as a function of crank angle degree. Profilocorder techniques are used to examine photomicroscopic surface characteristics. The cylinder wall wear element is supported in a first support arrangement that is driven reciprocatingly along a substantially axial path. A dynamic counter-reciprocating arrangement is coupled thereto for controlling second harmonic inertial forces. A second support arrangement that supports the piston ring wear element is coupled to a linear drive that urges same in a direction transverse to the substantially axial path of reciprocation of the cylinder wall wear element. A force gauge coupled to the linear drive produces data corresponding to the force being applied thereby. A further force gauge measures the friction force. Rotational data is obtained from a rotational encoder, and a lubricant supply arrangement provides lubrication in accordance with a plurality of lubrication regimes.

摘要翻译： 台架测试系统产生预定的磨损和摩擦环境，其中可以在内燃机的模拟条件下测试磨损元件，例如活塞环和气缸套，以及润滑剂性质。 可以在多种润滑方式下检查速度和正常载荷的影响，并可以观察到作为曲柄角度函数的摩擦系数的变化。 Profilocorder技术用于检查光学显微镜表面特性。 圆筒壁磨损元件被支撑在沿着基本轴向路径往复运动的第一支撑装置中。 一个动态的往复运动的布置被耦合到其上，用于控制二次谐波惯性力。 支撑活塞环磨损元件的第二支撑装置被联接到线性驱动器，该线性驱动器在垂直于圆筒壁磨损元件的基本上轴向的往复运动路径的方向上推动相同。 耦合到线性驱动器的力计产生对应于其施加的力的数据。 另一个力量表测量摩擦力。 旋转数据从旋转编码器获得，并且润滑剂供应装置根据多个润滑方案提供润滑。