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LDS 固定装置

使用我们专为电动振动台和LDS系统设计的扩展头和隔热板,扩展您的测试能力,其额定推力至少为9.8 kN (2205 lbf)。

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LDS 固定装置

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LDS® 标准系列高品质振动台扩展头可增加现有振动台系统的有效安装面积(相对于动圈而言),从而提升其承载能力,并可容纳更大的有效载荷。

扩展头采用先进的有限元 (FE) 分析建模技术设计,并由高强度镁合金铸造而成,具有优异的阻尼性能。
每个扩展头均配有紧固件和安装工具,可立即进行测试。
为了能够与环境试验箱配合使用,该系列中的每种尺寸都配备了隔热板。其他图案的嵌片可根据特殊订单提供。

用途

  • 增加振动台动圈的有效安装面
  • 容纳更大的有效载荷
  • 增加单次测试中的测试题数量以减少测试时间
  • 提高夹具设计的灵活性

功能

  • 采用优质航空级镁合金结构,具有优异的阻尼性能
  • 可用频率范围最高可达 2 kHz
  • 标准插片样式,M8、M10 或 3/8 UNC 插片尺寸
  • 经内部测试,动态性能准确(提供第一模态数据)
  • 包含全套安装工具
  • 防腐蚀设计未加工的零件涂漆;加工过的零件涂润滑剂。
  • 标准现成设计,交货周期短
  • 提供全面技术支持
  • 加速度计选项

Characteristics of head expanders

Designed using finite element analysis (FEA) technology, LDS® Head Expanders are cast from a high-strength, aerospace-grade magnesium alloy with excellent damping properties to minimize force dispersion. They have a usable frequency range from DC – 2000 Hz. To prevent corrosion, non-machined parts are painted, and machine parts are coated with lubricant.

We offer two types of head expander as standard products: guided and unguided.

  • Guided head expanders enable you to test payloads with masses greater than those the shaker can support. Available for LDS® V875, V875LS, V8, V9x shakers (whether trunnion- or combo-mounted) they are 1200 mm2 in size and have a support capability up to 1200 kg.
  • Unguided head expanders allow you to test payloads whose dimensions exceed those of the shaker’s armature work surface. As they are intended to accommodate larger – not heavier – articles, unguided head expanders do not provide additional load support. Unguided head expanders for the V850, V875, V875LS, V8 and V9x come in four sizes: 610, 762, 1000 and 1220 mm2 – for model V830-335, a 610 mm2 expander is available. Head expanders are also available for the larger water-cooled systems, including the 289 kN V994 shaker system.

For immediate testing, all head expanders are supplied complete with fasteners and fitting tools, including keyed payload attachment inserts in both grid and armature patterns, as well as armature screws, dedicated wrench key and torque wrench, and lifting eye-bolt.

Characteristics of thermal barriers

By reducing the heat conductivity between payload and shaker (or slip table, if one is used), thermal barriers enable vibration testing systems to operate with climactic chambers for environmental tests. We offer thermal barriers to match all sizes of head expander in the LDS range; other insert patterns can be supplied to special order.

The thermal barrier has clearance holes corresponding to the expander’s insert pattern and M6 helicoil inserts along the edges for the clamping strips. All thermal barriers are supplied with lifting eyebolts, clamping strips, corner clamping strips, and attachment screws.

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