Chapter 5 Robust Performance Tailoring with Tuning - SSL - MIT

Chapter 5 Robust Performance Tailoring with Tuning - SSL - MIT Chapter 5 Robust Performance Tailoring with Tuning - SSL - MIT

11.12.2012 Views

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Chapter 6 Focus Application: Structurally Connected TPF In the previous chapters, three tailoring methodologies are explored and it is shown through application to a low-fidelity development model that RPTT, Robust Per- formance Tailoring for Tuning, produces a design with the most desirable blend of nominal performance, robustness to uncertainty and tuning authority. The develop- ment model is representative of a structurally-connected interferometer but has only fifteen degrees of freedom and contains only structural elements. In realistic applica- tions a high-fidelity integrated model is required for design and analysis. Therefore, in this chapter the design methodologies are applied to an integrated TPF model that includes a high-fidelity structural component as well as a realistic disturbance model, vibration isolation and a simple ACS controller. PT, RPT and RPTT designs for a structurally-connected TPF interferometer (TPF SCI) are obtained, and performance trends similar to those in the previous chapters are observed. Implementation issues encountered with such a model are identified and addressed. 6.1 Model Description The TPF SCI model used for the study is an integrated model with components built in MATLAB and NASTRAN and integrated with the DOCS (Disturbance Optics 181

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