TVC jet vane thermal modeling using parametric system identification
Nunn, R. H. (Robert H.)
MetadataShow full item record
Parametric system identification procedures, using the software package MATRIXx, are applied to the problem of simulating the thermal response of a TVC jet vane. The jet vane is discretized into thermal lumps and energy balances are written to develop the governing mathematical relationships. Boundary layer convection and stagnation point heating are considered as thermal inputs, and the associated resistances are estimated. System identification is used to determine the appropriate values for the convective resistances and the vane mount thermal sink. The identified model, which is linear time-variant, closely predicts the thermal response of the jet vane shaft, surface and tip. Keywords: Thrust vector control systems
NPS Report NumberNPS69-88-001
Showing items related by title, author, creator and subject.
Sakoda, Daniel; Phelps, Ronald; Donovan, Bryce (Monterey, California. Naval Postgraduate School, 2012-10); NPS-SP-12-002Thermal modeling is an important part of spacecraft design, especially where critical components have narrow operating temperature limits. For the Naval Postgraduate School’s NPSAT1 spacecraft, the lithium ion battery is ...
Morrison, Hugh; Peters, John M. (2018-05);An approximate analytic expression is derived for the ratio, λ, of the ascent rate of moist deep convective thermals and the maximum vertical velocity within them. λ is characterized as a function of two non-dimensional ...
Zhou, Hong; Forest, M. Gregory; Zheng, Xiaoyu; Wang, Qi; Lipton, Robert (2005);Our aim here is to predict elongational flow-induced enhancements in thermal or electrical conductivity of liquid crystal polymer (LCP) nanocomposites. To do so, we combine two classical mathematical asymptotic analyses: ...