MIL-HDBK-1530B(USAF)
5.2.10 Flutter analysis. Utilize the verification guidance for Aeroelasticity (4.7) in JSSG-2006 to comply with the detail requirements for aeroelastic (flutter divergence and other related aeroservoelastic or aeroservoelastic instabilities) analyses. These analyses should determine the characteristics of the air vehicle for flutter, divergence, and other related aeroelastic or aeroservoelastic instabilities. The primary objective of the analyses is to substantiate the ability of the air vehicle structure to meet the specified flutter (including divergence and other related aeroelastic or aeroservoelastic instabilities), airspeed margins, and damping requirements for all design conditions. Analyses
for design failure conditions should also be conducted.
5.2.11 Mass properties analysis. A Mass Properties Control and Management Process (MPCMP) should be implemented and the results provided to the U.S. Air Force. Vehicle mass properties estimates should be established based on the Initial Operational Capability (IOC) air vehicle. Analysis should continue throughout this task and be provided to the U.S. Air Force. Detail guidance may be found in JSSG-2006 and Society of Allied Weight Engineers Recommended Practice Number 7 (SAWE RP No. 7).
5.2.12 Nuclear weapons effects analyses. Detail requirements for nuclear weapons effects analyses are contained in the requirement and verification for Required structure survivability - nuclear (3.8 and 4.8) in
JSSG-2006. The objectives of the nuclear weapons effects analyses are to:
a. verify the design of the airframe will successfully resist the described environmental conditions with no more than the described residual damage, and
b. determine the structural capability envelope and crew radiation protection envelope for other degrees of survivability (damage) as may be required.
These criteria and nuclear weapons effects analyses should be conducted for transient thermal, overpressure, and gust loads and provide the substantiation of allowable structural limits on the structures critical for these conditions. The nuclear weapons effects capability envelope-including crew radiation protection, for a specified range of variations of weapon delivery trajectories, weapon size, air vehicle escape maneuvers, and the resulting damage limits-should also be defined.
5.2.13 Nonnuclear weapons effects analysis. Guidance for nonnuclear weapons effects analysis is contained in the requirement and verification for Required structure survivability - nonnuclear (3.9 and 4.9) in JSSG-2006.
5.2.14 Design development tests. Detail guidance for design development tests are contained in
JSSG-2006. The objectives of the design development tests are to establish material and joint allowables; to verify analysis procedures; to obtain early evaluation of allowable stress levels, material selections, fastener systems, and the effect of the design chemical/thermal environment spectra; to establish flutter and loads characteristics through wind tunnel tests; and to obtain early evaluation of the strength, durability (including aeroacoustic and vibration durability), and damage tolerance of critical structural components and assemblies. Examples of design development tests are tests of coupons; small elements; splices and joints; panels; fittings; control system
components and structural operating mechanisms; and major components such as wing carry through, horizontal tail spindles, wing pivots, and assemblies thereof. The scope of the proposed test program should be included in the response to the request for proposal and should be included in the ASIP Master Plan which is included in the Integrated Master Plan (IMP) and Integrated Master Schedule (IMS). The plans should consist of information such as rationale for selection of scope of tests; description of test articles, procedures, test loads and test duration; and analysis directed at establishing cost and schedule trade-offs used to develop the program.
5.3 Full-scale testing (Task III). The objective of this task is to assist in the determination of the structural adequacy of the basic design through a series of ground and flight tests.
5.3.1 Static tests. Detail verification guidance is contained in Static strength (4.10.5) in JSSG-2006. The test plans, procedures, and schedules should be reviewed by the SPO and the contractor prior to test initiation. The static test program should consist of a series of laboratory tests conducted on an instrumented airframe that simulate the loads which result from critical flight and ground handling conditions. Thermal environment effects should be
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