MIMO Analysis
MIMO Analysis Type 7764 allows Multiple-Input Multiple-Output (MIMO) analysis on large, complex and/or symmetrical structures where more than one exciter is required.
On large structures such as vehicles and aircraft, it may not be possible to drive the entire structure from a single excitation point. The solution is to distribute the excitation over the structure using several smaller shakers. This also reduces the risk of non-linear structural behaviour.
Complex structures exhibit local modes requiring multiple excitation points to extract all of them. On symmetrical structures, repeated roots are found (that is, more modes at the same frequency). The solution here is to decompose the repeated roots using MIMO analysis and poly-reference curve-fitting. Measuring simultaneously multiple outputs optimizes data consistency.
Uses
- Analysis of large structures requiring high excitation energy
- Analysis of complex structures with local modes
- Analysis of symmetrical structures with repeated roots
Features
- Determination of MIMO Frequency Response Function H1 and Hv, ordinary coherence and multiple coherence
- Number of inputs limited only by your PC’s processing power
- Automatic parameter setup when used with Modal Test Consultant Type 7753
