Over the past 60 years, the U.S. aerospace community has developed, refined, and standard-
ized an integrated approach to structural dynamic model verification and validation. One name
for this overall approach is the Integrated Test Analysis Process (ITAP) for structural dynamic
systems. ITAP consists of seven sequential tasks, namely: (1) definition of test article finite
element models; (2) systematic modal test planning; (3) measured data acquisition; (4) mea-
sured data analysis; (5) experimental modal analysis; (6) systematic test-analysis correlation; and
(7) reconciliation of finite element models and modal test data. Steps 1, 2, and 7 rely strictly
on mathematical model disciplines, and steps 3 and 4 rely on laboratory disciplines and tech-
niques. Current industry practice of steps 5 and 6 calls for interaction of mathematical model
and laboratory disciplines, which compromises the objectivity of both modeling and labora-
tory disciplines. This book addresses technical content, strategies, and key relevant experiences
related to all steps of ITAP, except for measured data acquisition which is the specialized do-
main of highly experienced laboratory professionals who contend with mechanical and electrical
practicalities of instrumentation, excitation hardware, and data collection systems.
model, test plan, data analysis, modal analysis, correlation, reconciliation