A program has been written to investigate the
dynamics of robot manipulators during task execution.
The program simulates robot motion along a path specified
by the user. A smooth trajectory is generated by
interpolation in joint space. Forces and torques on
actuators are calculated at intermediate points, using a
recursive...
Phase-space trajectories are often used to describe a system's
stability or response characteristics. It is desirable to observe such
a phase-space trajectory directly from an analog simulation of a
system, but a conventional oscilloscope display does not provide an
axis for the third variable,
A third axis could be provided...
In this thesis a method is presented for maintaining the left
ventricular wall stress of the human heart at a constant level during
the systole (active portion of the heart's cycle). This constant stress
level makes it possible to take isotonic measurements on the heart
muscles.
The left ventricle of...
A consumer orientated simulation of rotary solenoid performance
allows the user to determine what effects non-standard conditions
will have on performance in a contemplated application. Typical
variable conditions are: loads temperature and voltage.
Three differential equations are used to describe the solenoid
operation. Two of these are non-linear, second-order equations...
A compartmental model of the immune system is simulated.
Chapter I discusses the importance of such a
model, reviews past immune system models, and summaries
the immunological theory the model is based upon. In
Chapter II, the compartmental representation of the immune
system is developed from immunological and physiological
theory....
Effects of stochastic variations of parameters in the planning
and design of a particleboard production system are studied. The
solution obtained from a linear deterministic optimization model is
compared against both the solution derived from the traditional
stochastic programming techniques and the distribution of optimal
objective function values obtained from...
This thesis presents thermodynamic evaluations of various biomass-fueled combined-cycle power plants using a computer model developed for simulating such plants. The combined-cycle systems Investigated are characterized by having a wood-fueled combustor, an indirect-fired gas turbine, and a steam cycle. This work was part of a larger biomass energy project at...
The objective of many simulations is to study the
steady-state behavior of a nonterminating system. The
initial conditions of the system are often atypical because
of the complexity of the system. Simulators often start
the simulation with the system empty and idle, and
truncate, or delete, some quantity of the...
The proposal for the research project reported herein was principally prepared during 1968 and the starting date for this study was established as September 1, 1969. In the approximately four years from the preparation of this proposal to the completion of this final report, the state of the art for...