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Design of Dual-redundancy Electric Mini-actuator

Author: WangHuiJuan
Tutor: WangDaoBo
School: Nanjing University of Aeronautics and Astronautics
Course: Control Theory and Control Engineering
Keywords: Dual redundant Electric steering gear UAV Reliability Fault Diagnosis Redundancy management
CLC: TJ760.35
Type: Master's thesis
Year: 2010
Downloads: 243
Quote: 1
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Abstract


UAV and missile servo actuator system has been widely used in the electric steering gear . Conventional single rudder loop task reliability is difficult to have a new breakthrough . High reliability requirements of modern UAV servo engineering practice , Three Small dual redundant electric steering gear , and reliability analysis , drawn from a small dual redundant electric steering gear general conclusions. According to the specific requirements of the project in two models , this paper designed two kinds of of double redundancy electric steering gear , steering gear for one of the principle prototype test . The working principle and the mathematical model based on in-depth study of dual- redundant servo position loop , current loop dual closed - loop control scheme and simulation , the simulation results show that this control scheme allows dual redundant steering gear single , double redundancy can reach runtime servo performance . To achieve dual redundant steering gear online dynamic detection system , based on in-depth analysis of the typical failure of the steering gear , dual redundant steering gear is divided into multiple components , according to the different characteristics of the components , the choice of using the model comparative monitoring or compare two channel output method constitutes a failure of the system self-test module . This paper gives a detailed dual redundant electric steering gear hardware design and the design of each functional module microprocessor TMS320F28335 DSP as the core experimental platform . This paper presents a flow diagram of the entire process of the steering gear failure diagnosis and detection module developed test interface . The experimental results show that of the prototype , the prototype can be used to meet the performance requirements of dual redundant steering gear control .

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CLC: > Industrial Technology > Arms industry > Rockets, missiles > Missile > General issues > Structure > Control mechanism
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