The Dynamic Response of Advanced Vehicles
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Report Number: WADD TR 60-518
Author(s): Bohne, Q. R., Clingan, B. E., DeCeault, C. W., Deutschle, P. C
Corporate Author(s): Boeing Airplane Company
Laboratory: Flight Dynamics Laboratory
Date of Publication: 1960-09
Pages: 230
Contract: AF 33(616)-6597
DoD Project: 1370
DoD Task: 14000
Identifier: AD0261041
Abstract:
An analytical study program has been conducted in order to determine dynamic load conditions and governing parameters for the flight of advanced vehicles; and an assessment of the adequacy and the applicability of existing dynamic loads prediction methods has been made. A typical two stage liquid fuel boost-glide configuration is assumed for the study, thus allowing for the interaction of such variables as fuel slosh, structural flexibility, aerodynamic forces and control system forces. The report is divided into sections which discuss dynamic loads in the following areas: pre-launch, launch, boosted flight, staging, re-entry and landing or recovery. Included in the Appendices are discussions of modal determination, simplified methods of analysis, computational techniques, and ground wind criteria. Also included is a development of flight equations of motion and an extensive bibliography of reference material. As a general conclusion it might be stated that the most formidable problems associated with dynamic loads determination result from man's inability to define aerodynamic forces accurately. Although mathematical models are becoming more complex, involving time-varying coefficients and nonlinear terms, their solutions can be obtained by the use of digital and analog computers.
Provenance: AFRL/VACA
Author(s): Bohne, Q. R., Clingan, B. E., DeCeault, C. W., Deutschle, P. C
Corporate Author(s): Boeing Airplane Company
Laboratory: Flight Dynamics Laboratory
Date of Publication: 1960-09
Pages: 230
Contract: AF 33(616)-6597
DoD Project: 1370
DoD Task: 14000
Identifier: AD0261041
Abstract:
An analytical study program has been conducted in order to determine dynamic load conditions and governing parameters for the flight of advanced vehicles; and an assessment of the adequacy and the applicability of existing dynamic loads prediction methods has been made. A typical two stage liquid fuel boost-glide configuration is assumed for the study, thus allowing for the interaction of such variables as fuel slosh, structural flexibility, aerodynamic forces and control system forces. The report is divided into sections which discuss dynamic loads in the following areas: pre-launch, launch, boosted flight, staging, re-entry and landing or recovery. Included in the Appendices are discussions of modal determination, simplified methods of analysis, computational techniques, and ground wind criteria. Also included is a development of flight equations of motion and an extensive bibliography of reference material. As a general conclusion it might be stated that the most formidable problems associated with dynamic loads determination result from man's inability to define aerodynamic forces accurately. Although mathematical models are becoming more complex, involving time-varying coefficients and nonlinear terms, their solutions can be obtained by the use of digital and analog computers.
Provenance: AFRL/VACA