Equipment and technology solutions
Quality and safety are paramount considerations for consumers evaluating automotive brands, hence automotive manufacturers undertake considerable efforts to ensure that their products meet or exceed consumers’ expectations in those areas. In general, manufacturers require extensive testing and evaluation of product components and designs throughout the research and development process, as well as realtime quality assessment testing during assembly and manufacturing. Failure to identify quality and safety issues can expose drivers and passengers to potential safety risks, result in expensive and time-consuming recalls as well as damage to a brand’s reputation in the market.
What is damper testing?
Damper testing assesses the performance, durability and service life of essential automotive components,including shock absorbers, dampers, struts and other parts. Damper testing is frequently used during the research and development phases to evaluate different material properties for their suitability in various applications and scenarios. Thereby, repeatability and good controls are crucial as small changes can affect the test results. In addition, damper testing is also used on the manufacturing line as part of ongoing quality testing and auditing to ensure that just components which meet certain requirements are delivered to the customer.
For many years, damper testing systems have relied on hydraulically-actuated technology. While hydraulic-based systems have contributed to significant improvements in automotive safety and quality, they require extensive maintenance as they age, and leaks and ruptures of hydraulic lines can result in safety and environmental risks. Further, their operation consumes significant amounts of energy, making them energy inefficient. Finally, because of their complex design, hydraulic-based damper testing systems offer minimal configuration flexibility, thereby limiting their versatility and overall usefulness.
What are the advantages of SEA-based damper testing systems?
Designed to replace servohydraulic-based systems and exceed the performance of other electric options; servoelectric actuator (SEA)-based damper testing systems offer a clean, efficient and dynamically responsive solution for both performance and durability testing in the automotive industry.
The key benefits of SEA-based damper testing technology include:
- Energy efficiency
- Quite operation
- Precise and full digital control with built-in diagnostics
- High continuous dynamic force capacity
- High bandwidths
- Liquid or air-cooling
- Multiple measurements, control algorithms and configurable Inputs/Outputs
For further information about the advantages of SEA technology and the specification of our damper testing systems please download our infosheet:
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How can we help you?
TÜV SÜD’s series of SEA-based damper test systems bring state-of-the-art technology to automotive damper testing. Our damper testers include two standard models offering varying peak dynamic force capacities (SEA.10.200 – 10.3kN (2,328lbf); SEA 20.200 – 20.7kN (4,652lbf)), and achieve significantly higher continuous loads, making them the only electric option for extended durability testing. Standard and custom configurations are available for various applications, including:
- Damper characteristics
- Strut/shock testing
- Spring testing
- NVH component testing
- Full spectrum of waveform
- Road profile/time history playback
- High velocity configuration (up to 8.7m/second)
TÜV SÜD SEA damper test systems come with Microsoft Windows®-based DAMPER TEST control and analysis software, which generates a full spectrum of waveforms, including sinusoidal, triangle, square, random, frequency sweeps and other custom waveforms. The software also allows road profiles and time history data to be imported and replayed. Our SEA systems take advantage of fully integrated digital processing, without introducing electrical noise inherent in analogue conversion processes, providing more precise control as well as more comprehensive troubleshooting, diagnostic and monitoring tools.