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    • 41. 发明授权
    • Method for balancing rotating machinery
    • 旋转机械平衡方法
    • US5172325A
    • 1992-12-15
    • US561882
    • 1990-08-02
    • Mohammad A. Heidari
    • Mohammad A. Heidari
    • G01M1/20G01M1/22
    • G01M1/20G01M1/22
    • The invention described here provides a method for obtaining the "best" solution to balancing engine vibration where one or more corrective weights are applied to accessible stage of an engine, while other unbalanced stages remain inaccessible, and hence, no balancing weights can be applied there. The method involves placing balancing weights at accessible stages only, but taking into account vibration at such stages which is created by unbalances at the inaccessible stages. The method is practiced by calculating the angular limits for placing a corrective weight onto an engine stage, followed by calculating the minimum and maximum weight magnitude to be placed on the stage so that overall engine vibration remains below a certain desired level (D). Thereafter, the optimum weight and angular position is determined by minimizing D via a procedure of incremental calculations.
    • 这里描述的发明提供了一种获得用于平衡发动机振动的“最佳”解决方案的方法,其中一个或多个校正重量被施加到发动机的可接近级,而其他不平衡级保持不可接近,并且因此不能在其上施加平衡重量 。 该方法包括仅将平衡重物置于可接近的阶段,但考虑到在不可接近阶段由不平衡造成的这种阶段的振动。 该方法通过计算用于将校正重量放置在发动机台上的角度限制,然后计算要放置在载物台上的最小和最大重量幅值来实现,使得整个发动机的振动保持在一定的期望水平(D)以下。 此后,通过增量计算程序使D最小化来确定最佳重量和角位置。
    • 44. 发明授权
    • Balancing machine and method for calibrating the same
    • 平衡机及其校准方法
    • US3681967A
    • 1972-08-08
    • US3681967D
    • 1970-02-24
    • BALANCE TECHNOLOGY INC
    • HINES GORDON EANDERSON RONALD W
    • G01M1/20G01M1/22
    • G01M1/20G01M1/22
    • A balancing machine of the soft suspension type wherein the part under test is supported by carriers that are free to translate or oscillate during a test operation. Vibrators are provided to oscillate the carriers during initial setup to calibrate electronic readout of pickups used to sense displacement of the carriers. The vibrators are driven by precise drive signals that can be proportioned to simulate unbalance at any correction plane. The pickups and the electronic circuits for processing the pickup signals can be calibrated during setup to provide a direct readout of the unbalance at any selected correction plane directly in either inch-ounces or ounces. The balancing machine is set up and calibrated for any given part under test without rotating the part prior to actually running the machine to determine the actual unbalance.
    • 一种软悬浮式的平衡机,其中待测部分由在测试操作期间自由平移或振荡的载体支撑。 提供振动器以在初始设置期间振荡载波,以校准用于检测载波位移的拾取器的电子读数。 振动器由精确的驱动信号驱动,其可以成比例地在任何校正平面上模拟不平衡。 用于处理拾取信号的拾取器和电子电路可以在安装期间进行校准,以在任何选定的校正平面上直接以盎司盎司或盎司直接读出不平衡。 平衡机在任何给定的被测零件下进行安装和校准,而不必在实际运行机器之前旋转零件,以确定实际的不平衡。
    • 49. 发明授权
    • Modal impact testing assembly, system and method
    • 模态冲击试验装置,系统和方法
    • US09134212B2
    • 2015-09-15
    • US13937204
    • 2013-07-08
    • The Boeing Company
    • Steven G. Wallace
    • G01N3/30G01M7/08G01M1/20G01N3/34G01M1/16G01M1/22
    • G01N3/30G01M1/16G01M1/20G01M1/225G01M7/08G01N3/34
    • There is disclosed an assembly, a system and a method for modal impart testing. The assembly has a first set of components. The first set of components include an impact assembly, a cycle control element coupled to the impact assembly, and a signal response measuring device positioned opposite the impact assembly. The assembly further has a second set of components separate from the first set of components. The second set of components include a first controller coupled to the cycle control element and a second controller coupled to the signal response measuring device. The first set of components and the second set of components form a modal impact testing assembly for modal impact testing. The impact assembly of the modal impact testing assembly is configured to impact a test element rotating at operational speeds.
    • 公开了用于模态赋予测试的组件,系统和方法。 组件具有第一组件。 第一组部件包括冲击组件,联接到冲击组件的循环控制元件以及与冲击组件相对设置的信号响应测量装置。 组件还具有与第一组部件分离的第二组部件。 第二组件包括耦合到循环控制元件的第一控制器和耦合到信号响应测量装置的第二控制器。 第一组元件和第二组元件形成模态冲击测试组件,用于模态冲击测试。 模态冲击测试组件的冲击组件被配置成影响以操作速度旋转的测试元件。