Publication Date:
2019-06-27
Description:
The asymmetric configuration of the space shuttle results in coupled pitch and axial vibration modes. This coupling results in interaction between the pogo and control systems. A detailed model of representative space shuttle structure, feedline, control, and engine systems revealed the coupled system may be unstable even though the pogo and control systems are stable individually. A method is developed for predicting the coupled system stability in terms of the stability of the separate systems.
Keywords:
SPACE VEHICLES
Type:
NASA-CR-2154
,
MDC-G2961
Format:
application/pdf
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