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    • 3. 发明授权
    • Fixture for testing shear strength in tailor welded blanks
    • 用于在裁缝焊接坯料中测试剪切强度的夹具
    • US06453752B1
    • 2002-09-24
    • US09498687
    • 2000-02-07
    • Daniel Quinn HoustonPeter A. FriedmanWilliam Steven Stewart
    • Daniel Quinn HoustonPeter A. FriedmanWilliam Steven Stewart
    • G01N320
    • G01N3/00B23K31/12B23K2101/185G01N3/04G01N2203/0296
    • A fixture is provided for testing the shear strength of a longitudinal weld which interconnects a plurality of planar blanks forming a tailor welded blank. The fixture includes a first pair of triangular shaped face plates connected to one side of the tailor welded blank and a second pair of triangular shaped face plates connected to the other side of the tailor welded blank. Each of the face plates includes a transverse edge which extends across the longitudinal weld connecting the planar blanks. The fixture further includes each of the transverse edges having a first portion and a second portion spaced from and parallel to the first portion. The fixture also includes an isolation portion interconnecting the first and second portions of the transverse edges adjacent the longitudinal weld for isolating a portion of the weld whereby the isolated portion of the weld is tested for shear resistance by applying a tensile load to the first and second pair of face plates.
    • 提供了一种固定装置,用于测试纵向焊缝的剪切强度,该纵向焊缝互连多个形成裁缝焊接坯料的平面坯料。 夹具包括连接到裁缝焊接坯料的一侧的第一对三角形面板和连接到定制焊接坯料另一侧的第二对三角形面板。 每个面板包括横跨连接平面坯料的纵向焊缝延伸的横向边缘。 固定装置还包括每个横向边缘具有与第一部分间隔开并平行于第一部分的第一部分和第二部分。 固定装置还包括隔离部分,其将横向边缘的第一和第二部分相互连接在纵向焊缝上,用于隔离焊接的一部分,由此通过将拉伸载荷施加到第一和第二部分来测试焊接的隔离部分的抗剪切性 一对面板。
    • 5. 发明申请
    • SYSTEMS AND METHODS FOR AUTHORIZED CONNECTION OF UTILITY SERVICE
    • 用于授权连接实施服务的系统和方法
    • US20120326836A1
    • 2012-12-27
    • US13517792
    • 2012-06-14
    • Ronald R. SewellJody WeigleSteven Stewart
    • Ronald R. SewellJody WeigleSteven Stewart
    • G05B19/02
    • H04Q9/00H04Q2209/60
    • Systems and methods for authorizing the connection of a utility service are disclosed. The system can comprise a utility meter, or other utility connection, a utility server, and a means of communication. The utility meter can comprise a disconnect switch capable of connecting and disconnecting a location from the utility. The disconnect switch can connect the utility to the location upon a command from the server and confirmation from a customer. The system can enable utilities to offer pay-as-you-go and pre-paid utility services, which can minimize the financial exposure of the utility. The system can also enable customers to connect utility services without having to be present and/or come into physical contact with utility equipment.
    • 公开了授权连接实用服务的系统和方法。 该系统可以包括公用事业计量表,或其他实用连接,公用事业服务器和通信手段。 公用事业仪表可以包括一个断开开关,其能够连接和断开与该公用设施的位置。 断开开关可以根据服务器的命令和客户的确认将实用程序连接到位置。 该系统可以使公用事业机构能够提供即付即用和预付费电力服务,从而最大限度地减少电力公司的财务风险。 该系统还可以使客户能够连接公用事业服务,而不必与公用事业设备存在和/或实现物理接触。
    • 7. 发明授权
    • Method of analyzing spot welded structures
    • 点焊结构分析方法
    • US06186011B1
    • 2001-02-13
    • US09347558
    • 1999-07-06
    • Pey Min WungWilliam Steven Stewart
    • Pey Min WungWilliam Steven Stewart
    • G01N320
    • G01N3/00B23K11/11B23K31/12G01N2203/0296
    • Method of analyzing spot welded sheet metal structures subjected to forces that promote one or more basic failure modes of either shear tension, in-plane rotation, coach peel, normal tension, or any combination of such basic modes, the method comprising: (i) providing spot welded sheet metal test coupons for analysis of the selected failure mode for the structure to be analyzed and subjecting such test coupons to progressively increasing forces that eventually achieve failure in the selected failure mode to thereby generate measured load and displacement test data; (ii) analyzing the data from the basic modes to derive and extract spot weld strength and stiffness information and then surface fitting such extracted data to create a database; (iii) establishing a computer math model for simulating the spot weld failure modes of the structure and populating the database thereinto to enable simulated physical tests of the structure; (iv) creating a cumulative-damage failure criterion for the spot welded structure that ratios (a) the resultant strength information from the populated math model for selected combinations of load and selected combinations of time and structure thickness, and (b) the measured strength information derived for such combinations of load derived from the test data; and (v) solving the criterion to determine whether it indicates failure for the combination of resultant strength and other values selected.
    • 分析经受促进剪切张力,面内旋转,教练剥离,正常张力或这些基本模式的任何组合的一种或多种基本失效模式的力的点焊金属板结构的方法,所述方法包括:(i) 提供用于分析待分析结构的所选择的故障模式的点焊金属片试样,并使这些试样逐渐增加最终在选择的故障模式中实现故障从而产生测量的载荷和位移试验数据的力; (ii)从基本模式分析数据,得出和提取点焊强度和刚度信息,然后对这些提取的数据进行表面拟合以创建数据库; (iii)建立一个计算机数学模型,用于模拟结构的点焊失效模式并填充数据库,以实现结构的模拟物理测试; (iv)创建点焊结构的累积损伤破坏准则,其比例(a)根据所选择的负荷组合和选定的时间和结构厚度组合的填充数学模型的合成强度信息,(b)测量的强度 从测试数据导出的负载的这种组合的导出的信息; 和(v)解决标准,以确定它是否指示合并强度和所选择的其他值的组合的失败。