TRANSACTIONS OF THE JAPAN FLUID POWER SYSTEM SOCIETY最新文献

Relationship between the Complex Parameters of Normalized Termination Impedance and the Standing Waves of Pressure Pulsation in a Hydraulic Pipe Line: (Analysis of the Transition of Resonant Mode by Numerical Calculation)@@@(数値計算による共振モードの遷移の解析) 归一化终端阻抗复参数与液压管路压力脉动驻波的关系:(数值计算的谐振模式转换分析)@@@(英文)

TRANSACTIONS OF THE JAPAN FLUID POWER SYSTEM SOCIETY Pub Date : 2013-09-15 DOI: 10.5739/JFPS.44.102

T. Ichiyanagi, T. Kuribayashi, T. Nishiumi

{"title":"Relationship between the Complex Parameters of Normalized Termination Impedance and the Standing Waves of Pressure Pulsation in a Hydraulic Pipe Line: (Analysis of the Transition of Resonant Mode by Numerical Calculation)@@@(数値計算による共振モードの遷移の解析)","authors":"T. Ichiyanagi, T. Kuribayashi, T. Nishiumi","doi":"10.5739/JFPS.44.102","DOIUrl":"https://doi.org/10.5739/JFPS.44.102","url":null,"abstract":"It is well known that the amplitude of pressure pulsation becomes extremely high when the frequency of the pump rotational speed coincides with the resonant frequency of the pressure pulsation standing waves. In the previous report, the authors investigated the relationship between the resonant modes of the standing wave arising in the connecting pipe and the termination characteristics of the hydraulic circuit. Although the influence of the two terminations, a restrictor and volume, on the resonant modes was clarified, the termination impedance contains only a real number or a purely imaginary number in terms of the complex characteristic. In this report, a further investigation of the influence of the complex parameters of termination impedance characteristics is undertaken. In particular, the non-dimensional pressure pulsation in the connecting pipe is examined by the numerical calculation to understand the resonant phenomena of a standing wave for the complex parameters of termination impedance. Consequently, the transition of the resonant mode between the “both ends closed” mode and the “pump end closed and termination end opened” mode is confirmed. The characteristics of the transition resonant mode are clarified, and it is found that pressure pulsation also becomes extremely high under the transition resonant mode conditions.","PeriodicalId":216805,"journal":{"name":"TRANSACTIONS OF THE JAPAN FLUID POWER SYSTEM SOCIETY","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116242101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Performance Test of an AC Servomotor Drive Valveless Hydraulic Power Steering by Using a Passive Type Electro-hydraulic Load Simulator 利用被动式电液负载模拟器测试交流伺服电机驱动无阀液压助力转向的性能

TRANSACTIONS OF THE JAPAN FLUID POWER SYSTEM SOCIETY Pub Date : 2013-07-15 DOI: 10.5739/JFPS.44.75

Yasukazu Sato, K. Hirano, Hirohisa Tanaka

引用次数: 1

A Study on the Large-Scale Bilateral Manipulator: (1st Report : Concept Planning and Experiment using a Single Lnik Model)@@@(第１報コンセプトの立案と単軸モデル実験) A Study on the Large-Scale Bilateral Manipulator:(第一篇报告:Concept Planning and Experiment using a Single Lnik Model)@@(第1报概念的立案和单轴模型实验)

TRANSACTIONS OF THE JAPAN FLUID POWER SYSTEM SOCIETY Pub Date : 2013-05-15 DOI: 10.5739/JFPS.44.55

H. Yoshinada, Shunya Takeda, S. Yokota

引用次数: 1

Characteristics on Sliding Torque of Blades in a Slide-Blade Type Air Pump 滑叶式气泵叶片滑动力矩特性研究

TRANSACTIONS OF THE JAPAN FLUID POWER SYSTEM SOCIETY Pub Date : 2013-01-15 DOI: 10.5739/JFPS.44.1

T. Ueki, K. Inaba

{"title":"Characteristics on Sliding Torque of Blades in a Slide-Blade Type Air Pump","authors":"T. Ueki, K. Inaba","doi":"10.5739/JFPS.44.1","DOIUrl":"https://doi.org/10.5739/JFPS.44.1","url":null,"abstract":"Slide-blade type air pumps are utilized in printing machines as an air source which provides both the action of air blowing and suction necessary for the paper handling. In the air pump, a large part of the motor power is occupied by the sliding friction between blades and cylinder surface of the casing. So, it is necessary to clarify the mechanism of the friction quantitatively in order to design practical dry air pumps with longer life and less energy consumption. In the paper, ﬁ rst of all, the sliding force by a single blade was measured experimentally through the axle torque, and its mechanism was made clear. Then, the torque by multi-blades was investigated similarly, and its characteristics which should be aﬀ ected by chamber pressure were analyzed. As a result, the following conclusions are obtained: １）． The sliding torque by a single blade indicates a cyclic change with rotor rotation, the absolute value of which is far larger than the theoretical one estimated by the centrifugal force to the blade solely. ２）． The sliding torque by a single blade is aﬀ ected signiﬁ cantly due to the constraint of the blade movement at the rotor slit. Speciﬁ cally, the sliding torque is the largest around a point between the maximum protrusion hight and the maximum thrust speed. Therefore, the set angle of rotor slits is an important parameter for the blades behavior. ３）． In actual air pumps with multi-blades, the air pressure in the blade chambers as well as in the bottom space of the rotor grooves seriously aﬀ ect the blade motion along the rotor slit. Therefore, air holes connecting the bottom of the rotors slits as well as air slots formed on the blade side-face are eﬀ ective for decreasing the sliding torque.","PeriodicalId":216805,"journal":{"name":"TRANSACTIONS OF THE JAPAN FLUID POWER SYSTEM SOCIETY","volume":"118 S1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131776631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Flow Rate Control using Particle Excitation Valve with Non-linear Compensation 非线性补偿颗粒激励阀的流量控制

TRANSACTIONS OF THE JAPAN FLUID POWER SYSTEM SOCIETY Pub Date : 2012-09-15 DOI: 10.5739/JFPS.43.117

D. Hirooka, K. Suzumori, T. Kanda

引用次数: 1

Wrist Rehabilitation Using Pneumatic Parallel Manipulator : Proposal of Rehabilitation Based on EMG Signal 气动并联机械臂腕部康复:基于肌电信号的康复方案

TRANSACTIONS OF THE JAPAN FLUID POWER SYSTEM SOCIETY Pub Date : 2012-05-15 DOI: 10.5739/JFPS.43.85

M. Takaiwa, T. Noritsugu, D. Sasaki

引用次数: 9

STUDY ON ENERGY EFFICIENCY OF WATER HYDRAULIC FLUID SWITCHING TRANSMISSION 水液压换向传动的能效研究

TRANSACTIONS OF THE JAPAN FLUID POWER SYSTEM SOCIETY Pub Date : 2011-10-27 DOI: 10.5739/JFPS.42.19

W. Kobayashi, K.Ito K.Ito, S. Ikeo, Tsuyoshi Yamada, Koji Takahashi, K. Ito

引用次数: 1

A Study of Flow Force on a Spool Valve 滑阀上的流动力研究

TRANSACTIONS OF THE JAPAN FLUID POWER SYSTEM SOCIETY Pub Date : 2011-01-15 DOI: 10.5739/JFPS.42.13

Kazuhiro Tanaka, Kouki Tomioka, F. Shimizu, M. Fuchiwaki

引用次数: 2

A Flexible Mechanical System Using a Hydrostatic Skeleton : Comparison of Driving Forces and Avoidance of Stress Concentrations Based on Nonlinear Finite Element Analysis 采用静水骨架的柔性机械系统:基于非线性有限元分析的驱动力比较与应力集中避免

TRANSACTIONS OF THE JAPAN FLUID POWER SYSTEM SOCIETY Pub Date : 2010-05-15 DOI: 10.5739/JFPS.41.43

D. Maruyama, H. Kimura, M. Koseki, N. Inou

{"title":"A Flexible Mechanical System Using a Hydrostatic Skeleton : Comparison of Driving Forces and Avoidance of Stress Concentrations Based on Nonlinear Finite Element Analysis","authors":"D. Maruyama, H. Kimura, M. Koseki, N. Inou","doi":"10.5739/JFPS.41.43","DOIUrl":"https://doi.org/10.5739/JFPS.41.43","url":null,"abstract":"The purpose of this study is to develop a design method of a fl exible mechanical system using a hydrostatic skeleton driving mechanism. The system consists of two types of fl exible bags in order to separate the roles into a structural part and an actuator part. One is a constant pressure bag as a structural part, and the other is a pressure tunable bag as an actuator part. There are remarkable advantages of using this system as listed below: i) Because of the fl exibility, the system can be applied safely to various kinds of workspaces where living beings and mechanical systems work together. ii) Because of using two types of bags, driving effi ciency of the system is higher than that of other fl exible systems using only one type of bag. The theoretical design method of the system is required to realize these advantages. In order to realize the design method, it is important to calculate the structural strength of the structural part and driving force generated by the actuator part. In this paper, strength evaluation of the structural part is performed by nonlinear FEA. From the comparison between the analytical result and measurement results, defl ection of the structural part is obtained. On the other hand, the driving force that is generated by the actuator part is also analyzed. Based on the analytical results, an empirical equation about the driving force is induced. The validity of the empirical equation is confi rmed by the comparison between measurement values and the values of the empirical equation. These results will contribute to an optimum design of the proposed fl exible mechanical system.","PeriodicalId":216805,"journal":{"name":"TRANSACTIONS OF THE JAPAN FLUID POWER SYSTEM SOCIETY","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127653024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Omni-Directional Vision and 3D Robot Animation Based Teleoperation of Hydraulically Actuated Hexapod Robot COMET-IV 基于全向视觉和三维机器人动画的液压驱动六足机器人COMET-IV遥操作

TRANSACTIONS OF THE JAPAN FLUID POWER SYSTEM SOCIETY Pub Date : 2009-11-15 DOI: 10.5739/JFPS.40.117

H. Ohroku, K. Nonami

引用次数: 7