碩士
國立中正大學
機械系
89
ABSTRACT
In this paper we study forward kinematics analysis of Tripod serial-parallel hybrid mechanisms. The focus of this paper is kinematics equations of Tripod mechanism are ...derived and solutions of nonlinear equations are solved and the realistic solutions are constructed using computer graphics.
We analyze three cases of serial-parallel mechanisms are Tripod-I , Tripod-II and Tripod-III . Tripod-I mechanism is analyzed in the chapter 2. First parallel part of Tripod-I is discussed. By giving the length of three limbs a 24th order polynomial equation in one unknown is derived. The roots of this polynomial are then solved numerically and real solutions are constructed using computer graphics. Only one of configurations passes master. Then by giving two angles in serial part of Tripod-I position and orientation of the spindle can be obtained. Tripod-II mechanism is analyzed in the chapter 3. Parallel part of Tripod-II is translational motion mechanism that is proved. A pair of analysis solu
碩士
國立清華大學
核子工程學系
83
Generally, dynamic system's responses were described by the
differential equations .Therefore, to model the system dynamics
of a complicated system , it requires rather long time ...to set
up the system governing equations. In addition, the computation
effort is also very huge. In order to reduce the computing
time, the calaulation of dynamic response of balance of plant
is usually neglected in the large system codes. This research
is to set up the dynamic model of balance of plant using the
neural networks so that the computing time can be very short.
In this research, the diagonal recurrent neural networks were
adopted, which need rather few neurons and also achieve good
performance. In addition, it converged very fast and then
reduced the training time. The data used for training were
generated by the compact simulator of Mannashan Nuclear Power
Plant which was developed by Institute of Nuclear Energy
Research and Institute for Information Industry. The whole
system was divided into six su
碩士
國立中興大學
植物病理學系
84
By using Japanese and Philippine differential varieties, Biolog
identification system, RFLP analysis and phage sensitivities,
102 strains of Xanthomonas oryzae pv. oryzae , the ...causal
organism of rice bacterial blight, isolated from Taiwan were
analyzed and grouped. Among fourteen rice cultivars examined
against Taiwanese isolates of X. oryzae pv. oryzae, DV 85, IR
1545-339, IR 20, Wase Aikoku 3, Java 14 and Chugoko 45 were
highly resistance; IR 8, IR 24, Kogyoku, Tetep, Kinmaze and
Kaoshiung sen 7 were morately resistance or susceptible, and Cas
209 and Rantai Emas were very susceptible. The Taiwanese
isolates were fallen into 6 groups according the responses
aganist inoculation to 5 Japanese differential cultivar (Rantai
Emas, Kinmaze, Kogyoku, Wase Aikoku 3 and Java 14), the major
group was J1, sharing 44.2% of the tested isolates, and 6.3,
8.4, 5.2, 18.9 and 12.6% for J2, J3, J4, J5 and J6 group,
respectively, however, 4 isolates were uncertain. These isolates
were classified into 7 gr
碩士
國立交通大學
電機與控制工程系
88
This thesis deals with the problem of using sliding mode technique to control and observethe states of an induction motor.We hope to directly regulate the rotor torque and the ...square of the rotor flux magnitude to the desired value. Nonlinear sliding surfaces are chosen and stator voltages
are derived such that the state trajectories have a sliding mode behavior for driving system to achieve the control objective.
Since in practice the rotor fluxes are hard to measure, a sliding mode observer is used to estimate the rotor fluxes.Moreover, we use a MARC speed controller to control the rotor speed.
Computer simulations in this thesis are performed using C language.Hardware implementation is based on a PC(Personal Computer) and relative circuits. Finally, experimental results are presented to show the superiority of the proposed theory and the accuracy of the software and hardware design for the experimental system.
