结构动力学测试

加速测试

在受到增加的重力负荷增加时，放置在材料或产品上的应力可能是灾难性的。加速度负荷可能导致结构问题，如偏转，紧固件或硬件故障，以及流量和压力调节的问题。

We have a range of centrifuge systems to subject products to increased g loading. Some of ouracceleration testingcapabilities include:

• 强制高达11400 kgf
• Frequencies from 5 – 3,000 Hz.
• 液压振动器高达4500 kgf
• Payloads up to 1600 kg

Spin Testing

与盘和诸如磁盘和诸如磁盘，航空发动机的旋转部件在飞机安全性方面非常敏感 - 威胁可能导致危险甚至灾难性的效果。为此原因spin testingbecomes an indispensable part of aero engine development.

Using our extensive range of facilities can test most rotating components of aero engines, turbine compressors, turbochargers and blowers under realistic conditions using highly sophisticated spin test rigs.

• Our spin testing capabilities include:
• 温度范围从-40c到1000c
• Speeds from 24,000 – 200,000 RPM
• 组件高达2500kg
• Generation of 3D temperature gradients by special oven technologies
• Multi-channel telemetry systems
• Permanent vibration monitoring
• Crack detection and crack growth monitoring at rotating specimens
• 高速摄像头

高级振动和扩展应力会降低产品的结构完整性，制作high-cycle fatigueand低周期疲劳材料和产品资格计划的关键部分。我们的设备使我们能够在短时间内测试各种频率，模拟组件的使用寿命和环境压力源。

Some of our capabilities include:

• Strain gauge calibration
• Specimen sizes from standard bars to full-size fan blades
• 频率高达20kHz
• Temperatures up to 1200°C
• Force-controlled and strain controlled programs
• Open-hole fatigue testing
• Tension-tension fatigue testing
• 张力压缩疲劳试验

振动测试

Vibration testing在测试环境下，模拟产品或结构在其寿命期间可能看到的条件。振动测试可用于确保产品在运行或运输过程中安全地安全，避免现场意外的性能或早期寿命失败。

我们执行的振动测试方法包括：

• Sinusoidal
• 随机
• Resonance Search & Dwell
• 随机随机狭窄
• Sine-on Random
• Combined Temperature and Vibration
• 直升机转子频率仿真
• Gunfire Simulation
• SRS
• 叶片振动（发动机风扇刀片损耗和风车）

跌落和休克测试

休克测试is used to measure the impact of sudden acceleration caused by explosion, drop, or collision. Our labs perform shock testing to prepare products for harsh industrial, transportation and military environments. Using an accelerometer to calculate speed and force, components are subjected to loads up to 50,000 g for less than one second. Our labs then evaluate the product for damage and stress, and to ensure that it can meet the demands of its work environment.

Some of our shock testing capabilities include:

• Operational shock and crash safety
• 枪声模拟
• Classical shock (half sine and saw tooth testing)
• 腐朽正弦波测试
• Bump testing
• Impulse testing
• Drop testing
• 影响测试

元件helps manufacturers to understand and meet the seismic qualification requirements, of which are often specific to a project, industry or sector. Ourseismic testingand certification services ensure that a product will continue to perform without loss of function under the most extreme vibration conditions, making them essential for nuclear equipment manufacturers of safety-critical systems and components.

Our seismic testing program includes:

• Test plan and strategy creation
• Fixture design
• Exploratory Testing
• Single Axis Testing
• 双轴测试
• 三轴地震检测
• Qualification Documentation

越来越多的轻质设计需求，结合改进的功能，质量和经济建设，继续推动在航空航天部门的关键结构系统和部件内进行全面测试的需求。元素有最先进的设备和设施展示了能力和专业知识，执行复杂和高度复杂的测试活动。

Some of our capabilities include:

• Deformation measurement
• 声学缺陷检测
• 不平衡测试
• Impact Testing
• Load Testing
• Compression Testing
• Tension and Torque Testing
• Endurance Testing
• 多轴检测

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冲击锤测试

• 冲击锤试验使用撞击锤的物理接触来表征结构或材料的动态性质
• Precise hammer strikes are coupled with accelerometers to record responses
• 元素的结构动力学工程师可以执行开场和场外测试以满足您的精确要求

Scanning Laser Doppler Vibrometer (SLDV)

• 从快速和激光准确的结果中受益
• Non-contact method of modal analysis
• Doesn’t damage prototype or affect object’s structural dynamics
• Principally used to scan test objects to determine mode shapes
• Maximum acquisition bandwidth of 1MHz
• Excitation by EM shaker, speaker or piezo crystal

FEA Model Validation

• 用于验证针对可用数据的FEA建模。
• Helps ensure against risky under-design and costly over-design
• Scanned 3D geometry, grid points and results can be imported into finite element analysis software for model generation and results correlation