HIGH ALTITUDE WIND RESPONSE OF MISSILE SYSTEMS
LOCKHEED MISSILES AND SPACE CO INC SUNNYVALE CA
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A survey of current practices to evaluate the critical rigid body response of vertically rising missiles to high-altitude winds was conducted. As a result, a parametric approach was developed which permits optimization of the design of a missile system. The launch probability can be optimized with respect to the mission of the vehicle and the structural weight traded off against payload capability or flight performance. The study resulted in the isolation of two definitive parameters maximum wind velocity and integrated area under the wind profile. Within statistical limits, these two parameters define the rigid body response to large scale winds. The probability that a certain response will be exceeded depends upon the joint probability function of maximum wind velocity and wind profile area. Parametric plots have been prepared to show this relationship. Statistical analysis of actual wind soundings has been initiated and preliminary joint distributions of the primary variables were obtained. These distributions agree qualitatively with the predictions and their application to several vehicles resulted in parametric response diagrams. The overall technique was verified using actual wind soundings.
- Guided Missile Trajectories, Accuracy and Ballistics