The Stinger missile system has been in the field for almost 30 years. As the system has matured and gone through several upgrades, the target modeling requirements in the hardware-in-the-loop (HWIL) simulation have be...
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ISBN:
(纸本)9781622763511
The Stinger missile system has been in the field for almost 30 years. As the system has matured and gone through several upgrades, the target modeling requirements in the hardware-in-the-loop (HWIL) simulation have become more stringent. One of the more difficult tasks is the registration of simulation irradiance models to the models used in the lethality program. This paper will describe the process by which the BRL-CAD™ models used in the lethality program are converted to models that are compatible with the HWIL simulation. The process by which the simulation models are validated to test data will also be discussed.
A micro satellite called "RISING-2" was developed by Space Robotics Laboratory (SRL) of Tohoku University, targeting scientific Earth observation on Sun-synchronous orbit using 5 m resolution telescope and t...
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ISBN:
(纸本)9781634399869
A micro satellite called "RISING-2" was developed by Space Robotics Laboratory (SRL) of Tohoku University, targeting scientific Earth observation on Sun-synchronous orbit using 5 m resolution telescope and technical demonstrations for future constellation by micro satellites. The attitude control system of the RISING-2 gives 3-axis zero-momentum stabilization by using three reaction wheels together with three magnetic torquers for dumping of body angular velocity. The attitude determination system is equipped with two star trackers, a gyro scope, sun direction sensors, a GPS, and a geomagnetic aspect sensor. Its behavior was evaluated by means of generic hardware-in-the-loop simulation (HILS) and verification environment, which is described in detail below. RISING-2 was launched by Japanese 24th H-IIA launch vehicle on May 24th 2014 at 3:05:14 (UTC). This paper describes pre-flight evaluation results of RISING-2 in HILS environment and also includes quick reviews about the first operation in orbit. In general, micro satellites have potentials to be rapidly developed in low cost. To achieve this, A Model-based Environment for Verification and Integration of μ-Satellite named MEVIμS was set up at SRL in parallel with the development of RISING-2 and our third micro-satellite called "RISESAT". In this environment, all satellite subsystems are simulated in software based on actual components including attitude control as well as data handling and power control. MEVIμS is based on a real-time OS to realize real-time simulation of HILS environment. HILS of RISING-2 attitude control system was demonstrated by utilizing the satellite on-board computer and reaction wheels. The star tracker test system was introduced to include the failure detection and time delay. As the results, the system development became more efficient since the attitude control system verification could be carried out all of the time. From the acquisition of the RJSING-2 data in real operation, the reli
This paper describes teaching experience in two courses in the authors' institution. These courses use hardware-in-the-loop simulation in order to require the students to design actual controllers (with full contr...
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This study explores the stability and security of power systems in the face of Denial of Service (DoS) attacks through hardware-in-the-loop (HiL) simulation technology. As the application of Distributed Energy Resourc...
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Powertrain drivability evaluation and calibration is an important part of vehicle development to enhance the customer experience. This step mainly takes place on vehicle testing very late in the product development cy...
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In this paper, the control strategy for a grid-connected inverter to seamlessly transition from grid following to grid forming operation with minimal interruption was proposed and verified with power hardware-in-the-l...
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On the basis of the market demand, our company proposed to upgrade the power steering system of some cars, from hydraulic power steering to electric power steering (EPS). First of all, the system match of key parts wa...
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With the growing development of high-power electronic applications, the hardware-in-the-loop(HIL)simulation had gained more and more attention, however the topology of power system is complex in which there are multi-...
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ISBN:
(纸本)9781846260612
With the growing development of high-power electronic applications, the hardware-in-the-loop(HIL)simulation had gained more and more attention, however the topology of power system is complex in which there are multi-switch devices with high switching frequency. So there is a conflict between computation speed and simulation accuracy of HIL. This paper presents a process control method based on time-couple for the hardware-in-the-loop simulation of high-power electronic devices, in which machine time of the controller is used for a time benchmark to control the simulation process. It solved the issue of time such as delay of interface, delay of calculation, time-consuming of calculation and time synchronization. Then the most accurate algorithm can be adopted to analyze dynamic characteristics of the system and functions of the device without considering times.
It is a new experience to apply constant slip frequency scheme and constant peroid scheme to one frequency modulation radio altimeter for height measurement.A brief introduction of the height measurement of UAV'Do...
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It is a new experience to apply constant slip frequency scheme and constant peroid scheme to one frequency modulation radio altimeter for height measurement.A brief introduction of the height measurement of UAV'Double-module Altimeter is given first, and thenmathematic model of the whole system is developed *** , hardware-in-the-Ioop simulation system based on RS422 is builded,and the height measuring simulation data can be changed with delayed *** dealy line method and the RF reflection method are applied through the whole height measurement simulation experiments,By the experiments,the critical switching height of Double-module Altimeter of UAV is finded,and his switching height can supply precise height data for the UAV'automatical land *** the height measuring principle and test result,the measuring data is accuracy and stable.
Using HIL(hardware - in - the - loop) simulation technology during the development of control module for space robot, we can test the software and hardware of the control system, decrease development time and costs. I...
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