公开(公告)号：US6116258A

公开(公告)日：2000-09-12

申请号：US250518

申请日：1999-02-16

申请人： Vadim Shapiro ,  Dmitry Drob ,  Mykhailo Volynskyi ,  Boris Zilberman

发明人： Vadim Shapiro ,  Dmitry Drob ,  Mykhailo Volynskyi ,  Boris Zilberman

IPC分类号： F01D17/14 ,  F01D21/18 ,  F15B13/042 ,  F15B20/00 ,  F16K31/00

CPC分类号： F15B20/002 ,  F01D17/145 ,  F01D21/18 ,  F15B13/042 ,  F05D2220/72 ,  F05D2270/021 ,  F05D2270/301 ,  Y10T137/0318 ,  Y10T137/8663

摘要： Pilot valves used in electrohydraulic control systems are driven by either an electromagnetic electromechanical actuator or an electromotor electromechanical actuator. A drawback of electromagnetic actuation is that on brief interruptions of electrical power the actuator causes a trip response to the pilot valve, whereas a drawback of electromotor actuation is that on complete interruptions of electrical power the actuator cannot independently cause a trip response of the pilot valve on demand. The proposed modification, involving the pilot valve, provides a means to effect a trip response regardless of the electromechanical actuator type used, together with overcoming the drawback of electromotor actuation. To realize the trip response, an additional piston (connected to the electromotor actuator's stem) is positioned between the actuator stem and the pilot valve. A surface area of the additional piston and one surface area of the pilot valve are loaded by pressure from an oil trip line in the hydraulic system. The loaded surface area of the pilot valve causes a force in the direction opposite to that of a trip, while the force on the additional piston is in the direction required for a trip. When a trip is required, hydraulic pressure in the trip line is reduced causing (1) the force on the actuator stem to go to zero; and (2) the other force, intrinsically found on the pilot valve, to actuate the pilot valve into a trip condition. The decrease of trip line pressure is carried out by three solenoid drain valves (each equipped with two solenoid coils) manipulated by three electronic overspeed trip devices operated by a two-out-of-three voting scheme. Consequently, this invention not only negates the disadvantage of using electromotor actuators, but it also provides overspeed protection and an under-load test of various control system elements.

摘要翻译： 用于电液控制系统的先导阀由电磁机电致动器或电动机电机械致动器驱动。 电磁致动的缺点是，在短时间的电力中断时，执行器会导致对先导阀的跳闸响应，而电动机驱动的缺点是，在完全中断电力时，执行器不能独立地引起先导阀的跳闸响应 一经请求。 涉及先导阀的所提出的修改提供了一种实现跳闸响应的手段，而不管所用的机电致动器类型如何，同时克服了电机驱动的缺点。 为了实现行程响应，附加的活塞（连接到电动机致动器的杆）位于致动器杆和先导阀之间。 附加活塞的表面积和先导阀的一个表面积通过液压系统中的油脱扣管线的压力加载。 先导阀的负载表面积在与跳闸相反的方向上产生力，而附加活塞上的力处于跳闸所需的方向。 当需要行程时，跳闸线路中的液压减小，导致（1）致动器杆上的力变为零; 和（2）在先导阀上固有的另一个力将先导阀致动到跳闸状态。 跳闸线路压力的降低由三个由两个三分之一投票方案操作的电子超速跳闸装置操纵的电磁排放阀（每个配备两个电磁线圈）进行。 因此，本发明不仅否定了使用电动执行器的缺点，而且还提供了各种控制系统元件的超速保护和欠载试验。

公开(公告)号：US20050182500A1

公开(公告)日：2005-08-18

申请号：US10780204

申请日：2004-02-17

申请人： Vadim Shapiro ,  Dmitriy Khots ,  Ilya Markevich

发明人： Vadim Shapiro ,  Dmitriy Khots ,  Ilya Markevich

IPC分类号： G05B13/02 ,  G05B13/04 ,  G05B17/02 ,  G05B23/02 ,  H03D3/18

CPC分类号： G05B13/047

摘要： A method for controlling a system includes determining the lag in data from a variable signal. The data is arranged in matrices with one column for each variable signal. The columns are shifted to produce a plurality of different shifted matrices, each shifted matrix having a given value for the lag in data for each variable signal. A variable signal estimator processes each shifted matrix to output a variable signal function defining each variable signal in terms of its mathematical dependencies on all of the variable signals. A criterial function processes each variable signal function to provide an optimal lag value for each variable signal. A point calculation algorithm processes each shifted matrix to produce a point for each column. A lag estimator processes each point and optimal lag value to output a lag function defining each lag in terms of its mathematical dependency on all of the variable signals.

摘要翻译： 一种用于控制系统的方法包括从可变信号确定数据中的滞后。 数据以每个可变信号的一列排列成矩阵。 列被移位以产生多个不同的移位矩阵，每个移位矩阵具有用于每个可变信号的数据滞后的给定值。 可变信号估计器根据其对所有可变信号的数学依赖性处理每个移位矩阵以输出定义每个可变信号的可变信号函数。 标准函数处理每个可变信号函数，以为每个可变信号提供最佳滞后值。 点计算算法处理每个移位矩阵以产生每列的点。 滞后估计器处理每个点和最佳滞后值，以输出一个滞后函数，根据其对所有可变信号的数学依赖性定义每个滞后。

公开(公告)号：US20050060130A1

公开(公告)日：2005-03-17

申请号：US10896407

申请日：2004-07-22

申请人： Vadim Shapiro ,  Igor Tsukanov ,  Arpan Biswas ,  Michael Freytag

发明人： Vadim Shapiro ,  Igor Tsukanov ,  Arpan Biswas ,  Michael Freytag

IPC分类号： G06F17/10 ,  G06F17/50

CPC分类号： G06F17/5018 ,  G06F2217/06

摘要： A method is described for modeling heterogeneous material properties within a geometric model of an object (e.g., within a CAD model). Material functions are defined about material features (i.e., points, surfaces, or areas on or in the model) at which material properties are known, with the material functions each defining the behavior of that feature's material property at locations away from that feature. Combination of the material functions results in a single material function which defines the material properties throughout the geometric model. The resulting material function may then be used in subsequent analyses, such as in computerized behavior analysis of the geometric model. The material function may be constructed such that it meets desired constraints, and has desired smoothness and analytical properties, for ease of use in such subsequent analyses.

摘要翻译： 描述了用于在对象的几何模型（例如，在CAD模型内）内建模异质材料属性的方法。 材料功能是针对材料属性已知的材料特征（即，模型上或模型中的点，表面或区域）进行定义的，材料功能各自定义了远离该特征的位置处的该特征的材料属性的行为。 材料功能的组合产生一个单一的材料功能，它定义整个几何模型的材料特性。 所得到的材料功能可以用于后续分析，例如在几何模型的计算机行为分析中。 材料功能可以被构造成使其满足期望的约束，并且具有期望的平滑性和分析性质，以便在随后的分析中易于使用。

公开(公告)号：US5743715A

公开(公告)日：1998-04-28

申请号：US546114

申请日：1995-10-20

申请人： Serge Staroselsky ,  Brett W. Batson ,  Saul Mirsky ,  Vadim Shapiro

发明人： Serge Staroselsky ,  Brett W. Batson ,  Saul Mirsky ,  Vadim Shapiro

IPC分类号： F04D15/00 ,  F04D27/00 ,  F04D27/02 ,  F04B41/06 ,  F04B49/00

CPC分类号： F04D27/0269 ,  F04D27/02

摘要： Balancing the load between compressors is not trivial. An approach is disclosed to balance loads for compression systems which have the characteristic that the surge parameters, S, change in the same direction with rotational speed during the balancing process. Load balancing control involves equalizing the pressure ratio, rotational speed, or power (or functions of these) when the compressors are operating far from surge. Then, as surge is approached, all compressors are controlled, such that they arrive at their surge control lines simultaneously.

摘要翻译： 平衡压缩机之间的负载并不是微不足道的。 公开了一种用于平衡压缩系统的负载的方法，其特征在于浪涌参数S在平衡过程期间以相同方向与转速相同地改变。 负载平衡控制包括当压缩机远离浪涌运行时平衡压力比，转速或功率（或这些功能）。 然后，随着浪涌的进行，所有的压缩机被控制，使得它们同时到达它们的喘振控制线。

公开(公告)号：US07155367B1

公开(公告)日：2006-12-26

申请号：US11042783

申请日：2005-01-25

申请人： Vadim Shapiro ,  Ilya Markevich ,  Dmitriy Khots

发明人： Vadim Shapiro ,  Ilya Markevich ,  Dmitriy Khots

IPC分类号： G06F17/00

CPC分类号： G06Q10/043

摘要： The current invention is a computer implemented method of evaluating relative efficiency of equipment by constructing a mathematical model of the operation of the equipment, calculating a distance between an actual operating point and the mathematically obtained optimal operating point of the equipment, and processing the distances to identify efficiency changes of the equipment.

摘要翻译： 本发明是一种计算机实现的方法，通过构建设备运行的数学模型，计算实际工作点与数学上获得的设备最佳工作点之间的距离，并对距离进行处理，来评估设备的相对效率 识别设备的效率变化。

公开(公告)号：US07094019B1

公开(公告)日：2006-08-22

申请号：US10847556

申请日：2004-05-17

申请人： Vadim Shapiro

发明人： Vadim Shapiro

IPC分类号： F04D27/02 ,  F04D27/00 ,  F04B49/00

CPC分类号： F04D27/0284

摘要： A system and method of surge limit control for turbo compressors including a turbo compressor having an inlet and an outlet, an anti-surge valve, a variable speed drive to operate the compressor, a rotational speed transmitter, an inlet temperature transmitter, an inlet pressure transmitter, an outlet pressure transmitter and/or guide vanes, and a controller, the controller including a PID control module wherein the computer uses information from the transmitters to continuously calculate a pressure ratio of the compressor at the compressor's current operational speed and compare it to the compressor's calculated pressure ratio at surge limit conditions. A computer generates a control signal for determining when to open the anti-surge valve if the pressure ratio of the compressor at the compressor's current operational speed guide vanes are within a user defined safety margin to the calculated pressure ratio at surge limit conditions.

摘要翻译： 包括涡轮压缩机的涡轮压缩机的系统和方法，包括具有入口和出口的涡轮压缩机，防喘振阀，用于操作压缩机的变速驱动器，转速变送器，入口温度变送器，入口压力 变送器，出口压力变送器和/或导向叶片以及控制器，所述控制器包括PID控制模块，其中计算机使用来自发射器的信息来连续计算压缩机当前运行速度下的压缩机的压力比，并将其与 压缩机在浪涌极限条件下的计算压力比。 如果压缩机的当前操作速度导向叶片上的压缩机的压力比在浪涌限制条件下与用户确定的计算压力比的安全裕度之间，则计算机产生用于确定何时打开防喘振阀的控制信号。

公开(公告)号：US06718291B1

公开(公告)日：2004-04-06

申请号：US09602070

申请日：2000-06-22

申请人： Vadim Shapiro ,  Igor G. Tsukanov

发明人： Vadim Shapiro ,  Igor G. Tsukanov

IPC分类号： G06F1750

CPC分类号： G06F17/50 ,  G06F17/5018

摘要： A method and apparatus for mesh-free engineering analysis of geometric models is described. The method and apparatus, which are preferably software-based and implemented on personal computers or other programmable processing devices, represent geometric models by implicit mathematical functions. The implicit functions allow interpolation of all desired boundary conditions over the geometry without meshing, and the boundary conditions may then may be combined with a piecewise continuous model of the solution structure (i.e., the analysis problem). By solving for elements of the solution structure (its basis or coordinate functions) which satisfy the given boundary conditions either exactly or approximately, the solution structure will define the behavior and boundary conditions (exactly or approximately) throughout the geometric model.

摘要翻译： 描述了几何模型无网格工程分析的方法和装置。 优选基于软件并且在个人计算机或其他可编程处理设备上实现的方法和装置通过隐式数学函数表示几何模型。 隐式函数允许在几何体上对所有期望的边界条件进行插值而不进行网格划分，然后边界条件可以与解决方案结构的分段连续模型（即分析问题）相结合。 通过解决满足给定边界条件的解决方案结构（其基础或坐标函数）的要素，解决方案结构将定义整个几何模型中的行为和边界条件（完全或近似）。

公开(公告)号：US09008807B2

公开(公告)日：2015-04-14

申请号：US13481206

申请日：2012-05-25

申请人： Vadim Shapiro ,  Ilya Markevich ,  Dmitriy Khots

发明人： Vadim Shapiro ,  Ilya Markevich ,  Dmitriy Khots

IPC分类号： G05B11/01 ,  G05B13/02 ,  G06F19/00 ,  G06G7/10 ,  G05B13/04

CPC分类号： G05B13/02 ,  G05B13/04

摘要： This invention provides a system and method of Advanced Process Control for optimal operation of multi-unit plants in large scale processing and power generation industries. The invention framework includes the following components: continuous real time dynamic process simulation, automatic coefficient adjustment of dynamic and static process models, automatic construction of transfer functions, determination of globally optimal operating point specific to current conditions, provision of additional optimal operating scenarios through a variety of unit combinations, and calculation of operational forecasts in accordance with planned production.

摘要翻译： 本发明提供了一种高级过程控制系统和方法，用于大型加工和发电行业中多单位工厂的最优化运行。 本发明框架包括以下组件：连续实时动态过程模拟，动态和静态过程模型的自动系数调整，传递函数的自动构建，确定当前条件特定的全局最优工作点，通过一个 各种单位组合，按照计划生产计算运行预测。

公开(公告)号：US20130317629A1

公开(公告)日：2013-11-28

申请号：US13481206

申请日：2012-05-25

申请人： Vadim Shapiro ,  Ilya Markevich ,  Dmitriy Khots

发明人： Vadim Shapiro ,  Ilya Markevich ,  Dmitriy Khots

IPC分类号： G05B13/04

CPC分类号： G05B13/02 ,  G05B13/04

摘要： This invention provides a system and method of Advanced Process Control for optimal operation of multi-unit plants in large scale processing and power generation industries. The invention framework includes the following components: continuous real time dynamic process simulation, automatic coefficient adjustment of dynamic and static process models, automatic construction of transfer functions, determination of globally optimal operating point specific to current conditions, provision of additional optimal operating scenarios through a variety of unit combinations, and calculation of operational forecasts in accordance with planned production.

摘要翻译： 本发明提供了一种高级过程控制系统和方法，用于大型加工和发电行业中多单位工厂的最优化运行。 本发明框架包括以下组件：连续实时动态过程模拟，动态和静态过程模型的自动系数调整，传递函数的自动构建，确定当前条件特定的全局最优工作点，通过一个 各种单位组合，按照计划生产计算运行预测。

公开(公告)号：US6044306A

公开(公告)日：2000-03-28

申请号：US949379

申请日：1997-10-14

申请人： Vadim Shapiro ,  Horea T. Ilies

发明人： Vadim Shapiro ,  Horea T. Ilies

IPC分类号： G06T17/10 ,  G06F19/00

CPC分类号： G06T17/10

摘要： Disclosed are methods for determining the largest subset of points that remains within a set of points S (i.e., shape S) when S is subjected to a motion M. These methods, which are generally designated herein as unsweep (or formalistically unsweep(S,M)), can be implemented (preferably by computer) for a variety of practical purposes, for example mechanical parts design. In this instance, simply by knowing the motion to be experienced by a part and the envelope wherein the part must fit during motion, unsweep can define the largest part that fits within the envelope according to the given motion. While direct part shape output is obtained, no part shape needs to be proposed beforehand, and thus the design process is no longer an iterative process of proposing shapes and correcting them in the case of interference. Further, unsweep is related to the known sweep function and can be used to obtain sweeps as well as unsweeps.

摘要翻译： 公开了用于当S受到运动M时确定保持在一组点S（即，形状S）内的点的最大子集的方法。这些方法通常在此被称为非扫描（或形式上不清晰（S， M））可以实现（优选地通过计算机）用于各种实际目的，例如机械零件设计。 在这种情况下，简单地通过知道零件的运动和包围部分在运动过程中必须适应，否则可以根据给定的运动来定义装配在包络内的最大部分。 虽然获得了直接的零件形状输出，但是不需要事先提出零件形状，因此设计过程不再是在干涉的情况下提出形状并进行纠正的迭代过程。 此外，不清除与已知的扫描功能相关，并且可以用于获得扫描以及非扫描。