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公开(公告)号：US4719583A
公开(公告)日：1988-01-12
申请号：US662976
申请日：1984-10-18
申请人： Hideo Takafuji , Tsugio Ishida , Shoichi Sekiguchi
发明人： Hideo Takafuji , Tsugio Ishida , Shoichi Sekiguchi
CPC分类号： G01N3/42 , G01N3/30 , G01N33/20 , G01N2203/0017 , G01N2203/0082 , G01N2203/0098 , G01N2203/0222 , G01N2203/0641
摘要： In order to evaluate the mechanical properties of steel, empirical equations showing the relationship between each of the tensile strength, yield point and elongation of steel and its hardness, grain size and chemical composition are determined in advance based on experimental results. Then, the hardness, grain size and chemical composition of the steel to be evaluated are determined. The tensile strength, yield point and elongation of the steel to be evaluated are determined by inserting the determined hardness, grain size and chemical composition in the empirical equations. In determining the energy absorbed according to a method of this invention, empirical equations showing the relationship between each of the shelf energy, transition temperature and temperature range of the energy transition region of steel and its hardness, grain size and chemical composition are determined in advance. Then, the hardness, grain size and chemical composition of the steel to be evaluated are determined. The shelf energy, transition temperature and temperature range of the energy transition region of the steel to be evaluated are then derived by inserting the determined hardness, grain size and chemical composition in the empirical equations. Finally, the energy absorbed at a given temperature is derived from the shelf energy, transition temperature and temperature range of the energy transition region thus determined.
摘要翻译： 为了评价钢的力学性能，根据实验结果，预先确定显示钢的每个拉伸强度，屈服点和伸长率与其硬度，晶粒尺寸和化学成分之间的关系的经验方程。 然后，确定要评价的钢的硬度，晶粒尺寸和化学组成。 通过将确定的硬度，晶粒尺寸和化学组成插入到经验方程式中来确定要评估的钢的拉伸强度，屈服点和伸长率。 在确定根据本发明的方法吸收的能量时，预先确定表示钢的能量过渡区域的搁架能量，转变温度和温度范围之间关系的经验方程及其硬度，晶粒尺寸和化学成分。 。 然后，确定要评价的钢的硬度，晶粒尺寸和化学组成。 然后通过将确定的硬度，晶粒尺寸和化学组成插入到经验方程式中来得到要评估的钢的能量过渡区域的搁架能量，转变温度和温度范围。 最后，在给定温度下吸收的能量来源于如此确定的能量过渡区的架能，转变温度和温度范围。
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公开(公告)号：US4344037A
公开(公告)日：1982-08-10
申请号：US8945
申请日：1979-02-02
申请人： Charles W. Ragsdale
发明人： Charles W. Ragsdale
IPC分类号： A61B3/16 , G06G7/68 , H03K5/153 , G01R19/165
摘要： A system and method analyzes tonosignals and other electrical signals such as those representative of force-displacement information from applanating probes initially to determine the presence of an acceptable waveform or tonosignal. Once an acceptable waveform is found, that waveform is analyzed further to locate the point of applanation. The level of the waveform at that point may be converted to a digital signal and displayed to indicate the pressure within the eye or other objects to which the probe is applied.
摘要翻译： 系统和方法分析了tonosignals和其他电信号，例如代表来自压平探头的力位移信息的那些，以确定是否存在可接受的波形或tonosignal。 一旦找到可接受的波形，就进一步分析该波形以确定压平点。 该点处的波形的电平可以被转换成数字信号并且被显示以指示眼睛或其他被施加探针的物体的压力。
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公开(公告)号：US3826902A
公开(公告)日：1974-07-30
申请号：US35139773
申请日：1973-04-16
摘要： Disclosed is an instrument for calculating and reading out various parameters of tensile testing results. The instrument receives an input signal from the testing apparatus whose voltage is proportional to the elongation of the sample being tested and another input signal whose voltage is proportional to the force to which the sample is subjected. At the point of sample breakage the maximum elongation of the sample and maximum force applied to the sample is readily determined and signals proportional thereto are fed to a readout device. The instrument also includes means to calculate and display an indication of the work necessary to break the sample and in the event of cyclic testing, the area within the hysteresis loop resulting when the force is removed from the sample.
摘要翻译： 公开了一种用于计算和读出拉伸试验结果的各种参数的仪器。 该仪器接收来自测试装置的输入信号，该测试装置的电压与被测试样品的伸长率成正比，另一个输入信号的电压与样品所受的力成比例。 在样品断裂点，容易确定样品的最大伸长率和施加到样品的最大力，并将与其成比例的信号馈送到读出装置。 该仪器还包括计算和显示打破样品所需工作的指示以及在循环测试的情况下当从样品中取出力时产生的磁滞回线内的区域的方法。
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公开(公告)号：US3659456A
公开(公告)日：1972-05-02
申请号：US3659456D
申请日：1968-03-22
摘要： A shock spectrum analysis and synthesis method and apparatus which includes the use of a shock spectrum analyzer and a shock spectrum synthesizer. The analyzer is a special purpose analog computer which provides an automatic shock spectrum analysis of both the primary and residual spectrum by solving the equation of motion for a single degree of freedom, mass-spring-damping system and displaying the output signals on an oscilloscope or X-Y recorder. The synthesizer generates a variable transient electrical input to a vibration shaker system by generating a plurality of steady-state signals each having a different frequency and gating and summing the signals.
摘要翻译： 包括使用冲击频谱分析仪和冲击频谱合成器的冲击频谱分析和合成方法和装置。 分析仪是一种专用模拟计算机，通过解决单自由度，质量弹簧阻尼系统的运动方程和在示波器上显示输出信号，提供主要和残余频谱的自动冲击频谱分析，或 XY记录仪。 合成器通过产生多个具有不同频率的稳态信号并且对信号进行选通和求和来产生振动振荡器系统的可变瞬态电输入。
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5.发明授权公开(公告)号：US08538734B2
公开(公告)日：2013-09-17
申请号：US11040072
申请日：2005-01-21
摘要： Extreme event performance evaluation using real-time hysteresis monitoring. A structure is monitored using one or more sensors. One or more inter-story Hysteresis Loops for the structure are generated in real-time using data from the sensors, thus enabling rapid decision making regarding the structure's condition.
摘要翻译： 使用实时滞后监控的极端事件性能评估。 使用一个或多个传感器来监视结构。 使用传感器的数据实时地生成结构的一个或多个故障间迟滞循环，从而能够对结构状况进行快速决策。
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公开(公告)号：US5886263A
公开(公告)日：1999-03-23
申请号：US826149
申请日：1997-03-27
申请人： Robert H. Nath , James J. Schwarz , Jay G. Saxton
发明人： Robert H. Nath , James J. Schwarz , Jay G. Saxton
CPC分类号： G01N29/4418 , G01N29/045 , G01N29/12 , G01N29/4472 , G01N2291/014 , G01N2291/2693
摘要： A method of resonant ultrasonic measurement frequencies to determine materials properties is combined with the use of a finite element model and empirical data made from an actual prototype part to create a validated finite element model. The validated finite element model is then used as a standard for comparison to additional production parts, and production part measurement data is stored and archived by part serial number for future comparison to part tests performed during periodic maintenance of equipment utilizing the part after shipment to customer.
摘要翻译： 共振超声波测量频率来确定材料性质的方法结合使用有限元模型和实际数据从实际原型部分创建一个有效的有限元模型。 然后将验证的有限元模型用作与附加生产零件进行比较的标准，并通过零件序列号存储和归档生产零件测量数据，以便将在运送到客户后使用零件的设备定期维护期间进行的零件测试进行比较 。
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公开(公告)号：US5327358A
公开(公告)日：1994-07-05
申请号：US741871
申请日：1991-08-07
申请人： Norris Stubbs
发明人： Norris Stubbs
CPC分类号： G01M5/0033 , G01H17/00 , G01M5/0066 , G01M7/00
摘要： A method for detecting damage in the structure includes a plurality of steps. These steps include determining first data indicative of pre-damage modal parameters of the structure, determining second data indicative of post-damage modal parameters of the structure, and identifying at least one location of the damage based upon first and second data applied to an indicator function. The damage detection method is capable of localizing damage in the structure, and subsequently estimating the magnitude of such damage, using limited modal information.
摘要翻译： 用于检测结构中的损伤的方法包括多个步骤。 这些步骤包括确定指示结构的损伤前模态参数的第一数据，确定指示结构的损伤后模态参数的第二数据，以及基于应用于指标的第一和第二数据来识别损伤的至少一个位置 功能。 损伤检测方法能够对结构进行定位，然后利用有限的模态信息估计这种损伤的大小。
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公开(公告)号：US4164863A
公开(公告)日：1979-08-21
申请号：US839584
申请日：1977-10-05
申请人： Charles W. Ragsdale
发明人： Charles W. Ragsdale
摘要： A system and method analyzes tonosignals and other electrical signals representative of force-displacement information from applanating probes such as those initially to determine the presence of an acceptable waveform or tonosignal. Once an acceptable waveform is found, that waveform is analyzed further to locate the point of applanation. The level of the waveform at that point may be converted to a digital signal and displayed to indicate the pressure within the eye or other objects to which the probe is applied.
摘要翻译： 系统和方法分析了代表来自诸如那些最初确定可接受波形或tonosignal的存在的压平探针的力位移信息的tonosignals和其他电信号。 一旦找到可接受的波形，就进一步分析该波形以确定压平点。 该点处的波形的电平可以被转换成数字信号并且被显示以指示眼睛或其他被施加探针的物体的压力。
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公开(公告)号：US3474237A
公开(公告)日：1969-10-21
申请号：US3474237D
申请日：1966-10-03
申请人： AUTOMATION IND INC
发明人： HASTINGS JOSEPH C
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公开(公告)号：US2601382A
公开(公告)日：1952-06-24
申请号：US72221147
申请日：1947-01-15
申请人： FUBINI EUGENE G
发明人： FUBINI EUGENE G
IPC分类号： G06G7/68
CPC分类号： G06G7/68
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