LMS solutions for ground vibration testing

Ground Vibration Testing (GVT) provides critical information in validating aircraft design and for certification. The results from ground vibration tests are used for a wide range of design activity including flutter, control systems, structural dynamics and integrity. The quality of the data obtained is therefore critical to a successful design effort. Additionally, these tests are typically conducted just prior to first flight or after major redesign efforts and are almost always conducted under extreme time constraints making it essential that the tests are quick, efficient and accurate.

LMS offers a structured approach to ground vibration testing (GVT) utilizing state of the art technology to ensure high quality results. 

• Pre-test virtual GVT reduces the risk of missing critical modes during the physical test. By means of CAE tools, virtual GVT studies assess vehicle modes and identify the risks for test planning as well as effective placement of instrumentation and aircraft mounting.
• Tightly integrated data acquisition front-ends and testing and analysis software minimizes time required for test setup and facilitates successful execution to aggressive time schedules. The solution platform includes test instrumentation management, proficient modal analysis technology, integrated data management, online validation and efficient reporting tools.
• LMS GVT technologies enable testing teams to quantify the confidence of the delivered modal data. The test observation is increased through multiple excitation techniques, modal validation techniques and non linear behavior assessment of the structure.
• Near real time correlation and test quality validation capabilities allow testing and analysis teams to agree on acceptance of the data acquired and proceed to next phase of the test campaign.