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 | |
# Topics | |
DTIC Archive; Riedel,Susan A ; SYSTEM... | |
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