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DTIC ADA1049339: User's Guide to BIODYN-80; An Interactive Software...
by Defense Technical Information Center
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BIODYN-80 is an interactive computer program for solving
the dynamic motion response of seated aircrew (pilots or
equipment operators) working in a biodynamic environment
(such as vibration or changing levels of acceleration in
aircraft, surface vehicles, or motion simulators). The
multi-degree-of-freedom, lumped-parameter model includes
elements for: pelvis, torso, neck, head, eyes, upper and
lower arms, hand-grip and control stick (center-stick
with arm rest). An active 21-parameter neuromuscular
system is operable with either the limb or head control.
The eye's image motion dynamics include a 13-parameter
model for the fixation and vestibuloocular reflexes. The
nonlinear equations of motion of the body's main elements
are linearized about a general set of body-limb-head
postures, ranging from prone, to erect, to supine. Inputs
are vertical or fore-aft accelerations of the seat, while
a wide variety of outputs are available, including
motions of the shoulder, head, eyes, arm, hand, or
control stick. Typical parameter ranges and sources are
given, along with two 'typical' sets: a seated-pilot with
center-stick, and a seated crewman with hands in lap. The
program can be run in a mode interactive with the user,
or in a batch mode. The program helps the user load the
necessary parameters, and offers a 'quick-look' printer
plot of the resulting frequency responses, in standard
Bode-plot forms. The program also can produce
biomechanical transmissability files needed for use in
the Air Force's PIVIB program for tracking performance
estimation. Procedures and examples are given for both a
Cyber 175 version and a PDP-10 version.
Date Published: 2020-05-20 08:18:49
Identifier: DTIC_ADA1049339
Item Size: 35304088
Language: english
Media Type: texts
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DTIC Archive; Riedel,Susan A ; SYSTEM...
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