• Title/Summary/Keyword: AMESim Software

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Characteristics Analysis of the Hydraulic Motor Design Variables (유압모터의 설계변수에 대한 특성 검토)

  • Liu, Liang-Liang;Jang, Joosup
    • Transactions of the Korean Society of Automotive Engineers
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    • v.21 no.4
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    • pp.188-194
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    • 2013
  • Hydrostatic pumps and motors occupy an important position in hydraulic system. There are a lot of researches on characteristics of hydraulic pumps, but not hydraulic motors. So in order to know the characteristics of hydraulic motors we had this research. The purpose of this study is to derive and analyze the theoretical calculation of hydraulic axial piston motor torque and torque ripples. Then, analyzed the differences between torque ripples with dead place and without dead place on the valve plate, and modeling a hydraulic motor with AMESim software. Finally, theoretical calculation of hydraulic motor torque ripples was verified from the viewpoint of simulation.

A Study on the Dynamic Characteristics of a Electric Motor Clutch for Commercial Vehicles (상용차용 전동식 클러치의 동적특성에 관한 연구)

  • Cho, Ihnsung;Jung, Jaeyoun
    • Transactions of the Korean Society of Automotive Engineers
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    • v.22 no.1
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    • pp.52-58
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    • 2014
  • To improve the performance of clutch actuator of clutch-by-wire system for commercial vehicles, it is necessary to understand the driving characteristics of the system. To explain and predict the effects of driving characteristics on clutch characteristics, AMESim software is used. The simulation model of clutch-by-wire system is developed in the AMESim environments under the geometrical dimensions and driving mechanisms of the clutch-by-wire system, such as the rotation speed of the DC motor, the gear ratio of the reducer, the design parameters of the release fork, the coefficient of the clutch diaphragm spring, and so on. The results show that the theoretical analysis of the clutch-by-wire system for commercial vehicles using the AMESim software find out the driving characteristics of the clutch actuator, and predict the performance characteristics of the clutch-by-wire system.

A Study on the Output Characteristic of Vacuum Booster (진공배력장치 출력특성에 대한 연구)

  • Lee, C.T.
    • Journal of Power System Engineering
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    • v.13 no.6
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    • pp.110-116
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    • 2009
  • In the present study, we proposed a simulation model of vacuum booster with AMESIM software to predict the output characteristic. And we performed the sensitivity analysis of output characteristic with main design parameters, such as diaphragm diameter. All of these parameters are main design parameters in the procedure of vacuum booster design. The simulation results of this paper offer qualitative information of vacuum booster output. Therefore, the simulation results of this paper will be used effectively for the design procedure of vacuum booster in the industrial field.

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Development of Analysis Model for High-Performance Heat Pump (고성능 히트펌프 해석모델 개발 연구)

  • Yim, Sang-Sik;Kim, Ki-Bum;Park, Sung-Young
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.14 no.12
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    • pp.6053-6059
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    • 2013
  • Heat pumps have attracted considerable attention as a green energy system because they use renewable energy, such as geothermal, solar energy and waste heat, and can have a low electricity consumption rate compared to other conventional electric heating system. Many studies of high efficient heat pump system design was performed previously,but it is not easy to find any an analytical model that consists of components (e.g. compressor, heat exchangers, and expansion valve), not only having an interrelation and interconnection each other but also being flexible to any change in geometry and operating parameters. In this study, a computational model was developed for a heat pump with warm air as a heat source using the one-dimensional modeling software, AMESim. In combination with an independently-developed analytical model for a scroll compressor, the heat pump model can simulate the physical characteristics and actual behavior of the heat pump precisely. In addition, the reliability of the model was improved by verifying the simulation results using experimental data. The simulation data fell into the 10% error range compared with the experimental data. The heat pump model can be used for system optimization studies of product development and applied to other applications in a range of industrial field.

A Study on Sliding Mode Control of EHA System for Robust Control (견실한 추종 제어를 위한 EHA 시스템의 슬라이딩 모드제어에 관한 연구)

  • Park, Yong-Ho;Park, Sung-Hwan
    • Journal of Advanced Marine Engineering and Technology
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    • v.33 no.1
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    • pp.71-80
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    • 2009
  • The response characteristics of EHA systems are sensitive to the temperature change of working fluid because the temperature of working fluid causes the variation of system parameters such as effective bulk modulus and viscous friction coefficient. In this paper, a precise position control of EHA system using the adaptive sliding mode control system is suggested. The adapted system parameters such as effective bulk modulus and viscous friction coefficient can be used for monitoring failures in the EHA system which has potential applications in the industrial fields. Not only the accuracy of adapted system parameters but also the improved performance and robustness in a given reference position of the cylinder are verified by computer simulation using AMESim software.

Developing AMESim Model to Find out Process Condition of High Purity Solvent Recovery System (고순도 용제 회수 시스템의 공정 조건 탐색을 위한 AMESim 모델 개발)

  • Kim, Dae Hyun;Joo, Kang Woo;Kim, Kwang Sun
    • Journal of the Semiconductor & Display Technology
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    • v.14 no.4
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    • pp.8-12
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    • 2015
  • As NMP (N-Methyl-2pyrrolidone) is becoming important in many fields, the demand for it is also rising rapidly. With its chemical property of high boiling point, low vapor pressure and high water solubility, it is easy to recover it after processing. Therefore, it is increasingly needed to develop a system that effectively recovers NMP solvent. The study produced a system modeling using AMESim software before developing high purity solvent recovery (HPSR) system to recover NMP solvent. Then, it verified reliability by comparing the simulation model with the test result.

Analysis of the Thrust Augmentation in the Canister with Baseplate Orifices (오리피스 형상에 따른 발사관 내 부가추력 특성 연구)

  • Yoon, Jin-Young;Lim, Beom-Soo
    • Journal of the Korea Institute of Military Science and Technology
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    • v.14 no.6
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    • pp.1067-1072
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    • 2011
  • If the flow of booster gas which is exhausted to the rear part of a canister is properly restricted in the canister of a hot-launch system, the resultant pressure built up in the canister provides additional force to accelerate the missile to a required launch velocity. These thrust augmentation performances can be controlled through the configuration design of baseplate orifices. In this paper, the simple technique to analyze the thrust augmentation performances of baseplate orifices is suggested and the thrust augmentation characteristics by its various configurations are compared. According to the initial displacement of a missile, the inner pressure of a canister is measured from scaled cold flow tests, and the discharge coefficient of baseplate orifices is calculated. Then the thrust augmentation in a canister is simulated by applying these discharge characteristics to the AMESIM software for launch dynamics.

PWM Control of On-Off Valves using MR Fluid Spool (MR유체 스풀을 이용한 온-오프 밸브의 PWM제어)

  • 양택주;배형섭;박명관
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2003.06a
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    • pp.1709-1712
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    • 2003
  • Almost the on-off type solenoid valve is used to hydraulic system. It has a strong point that concerned about rapid response, electric and hydraulic characteristic at the same time. In this paper we produced the new type spool using the MR fluid different from the others. Also we controlled a cylinder position through PWM method. And using the AMESim software, We compared our new type spool valve with existed one from data of simulation and experiment.

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Simulation on Characteristics of Constant Power Regulator Systems in Variable Displacement Axial Piston Pump (사판식 가변 용량형 액셜 피스톤 펌프의 일정출력 레귤레이터 특성 시뮬레이션)

  • Lee, J.M.;Park, S.H.;Park, Y.H.;Lee, H.H.
    • Journal of Power System Engineering
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    • v.15 no.2
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    • pp.5-12
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    • 2011
  • In this study, modeling and numerical simulations has been performed to investigate performance characteristics of constant power regulator system for swash plate type axial piston pump. The commercial numerical simulation software, AMESim was applied for analyzing the dynamic behavior of constant power regulator system of swash plate axial piston pump. The validity of simulation model of constant power regulator system is verified by comparing simulation results with experiments. Also, the behavior of main components of constant power regulator system such as spool, sleeve and counterbalance piston is investigated using the results of computer simulation.