著者

石田 勝裕 渡邉 鉄也 田中 基八郎

出版者

一般社団法人 日本機械学会

雑誌

ジョイント・シンポジウム講演論文集:スポーツ工学シンポジウム:シンポジウム:ヒューマン・ダイナミックス 2007 (ISSN:24331309)

巻号頁・発行日

pp.172-177, 2007-11-13 (Released:2017-08-01)

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Lure fishing and fly-fishing have been positioned as sports deliberately different from the traditional Japanese fishing-style. In the case of fly-fishing, casting is the element which anglers must master in order to cast a fly, done so by using the weight of a line. This study uses experimental and computational analysis to investigate the dynamic behavior of a fly line. Fly-fishing constitutes various elements, but the importance that casting holds is extremely large. Fling speed, the casting process and the loop shape of the line while in flight are important for the proper presentation of flies. Moreover, the shape of a fly line is also important for a long cast or controlled cast. However, it is difficult to grasp the phenomenon or to make a numerical model because a fly line is an object of flexible string. Therefore, the most suitable casting method will be clarified from the viewpoint of sports engineering and human dynamics. In addition, measuring an angler performing movements with a flexible object such as a rod or a line is difficult. So establishing a method to measure the dynamic behavior precisely is also one of the purposes of this study. For the past study, casting that uses only one hand have been analyzed. However, casting that uses both hands is often done in the actual fishing field. In this paper, line's behavior is examined in double haul casting.

著者

渡邉 鉄也 伊藤 淳二 田中 基八郎 細矢 直基

出版者

日本感性工学会

雑誌

感性工学研究論文集 (ISSN:13461958)

巻号頁・発行日

vol.2, no.2, pp.43-48, 2002-08-31 (Released:2010-06-28)

参考文献数

6

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A human being laughs in every day life when happy, and a facial expression changes unconsciously. It is thought that the facial expression has close relation to feelings and Kansei. The facial expression is more intelligibly than the expression by word, and can convey a delicate nuance when introducing feelings. Intention communication with a different foreigner is possible by a facial expression and a gesture. In this way, the role that a facial expression serves as by communication is very big. The aim of this study is to control a mind state by the intentionally modified facial expression. The final aim is the application to a field of the medical welfare. In this study, measuring the behavior of each muscle of a face using electromyogram in order to evaluate the expression quantitatively elucidates the mechanism of a facial expression. Six facial expressions is paid attention. When a human being made a facial expression intentionally, it is thought that a mind state changes by the facial expression. For example, it is said that a mind state is stable unconsciously when making a smile intentionally. On the other hand, it is thought that a mind state becomes unstable when a partner makes a facial expression of anger. In this way it is thought that a mind state is closely related to a facial expression, but there are many subjects that have not been elucidated. So the relation of a facial expression and a mind state is cleared from bio-information such as electromyogram or brain waves as an engineering approach and will be applied to the medical welfare.

著者

森 裕介 田中 基八郎 渡邉 鉄也 戸田 富士夫

出版者

一般社団法人日本機械学会

雑誌

Dynamics and Design Conference : 機械力学・計測制御講演論文集 : D & D (ISSN:13480235)

巻号頁・発行日

vol.2000, 2000-09-01

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Triangle is a popular instrument of high frequency sound. But its generation mechanism of sound is not clear. In this paper, we investigated frequency characteristics and mode shape of vibration of the triangle, and measured distribution of sound pressure level around the triangle. As a result, we were able to make certain that those were closely related. Considering that hanging position is an important parameter of damping property, we experimented using a C type curved beam. We compared its damping result with that of the triangle.

著者

鈴木 健太 渡邉 鉄也 田中 基八郎

出版者

社団法人日本機械学会

雑誌

日本機械学會論文集. C編 = Transactions of the Japan Society of Mechanical Engineers. C (ISSN:03875024)

巻号頁・発行日

vol.74, no.746, pp.2549-2554, 2008-10-25

参考文献数

8

被引用文献数

1

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rights: 社団法人日本機械学会rights: 本文データは学協会の許諾に基づきCiNiiから複製したものであるrelation: IsVersionOf:http://ci.nii.ac.jp/naid/110006967447/Generally a coefficient of friction of a human finger is very higher than a coefficient of friction of metal. The physical characteristics of a human finger are important in the work by hand. Therefore, the physical and numerical modeling of fingertip is useful for the design of various equipments, for example, a handrail of stairs, a robot hand, an operation simulator, and so on. In this study, "Coulomb friction", "absorption by fingerprint and sweat" and "elasticity of finger" are considered as the element of the friction characteristics. The aim of this study is to express the force by these characteristics as function model and to make the physical fingertip model. At first, the force by friction and absorption are measured, and the contact area between fingertip and board is calculated. Next, the function of friction force with respect to vertical force acting on the contact surface between fingertip and board is suggested. Finally, the actual finger model is made and the friction force is modeled to the function.

著者

田中 基八郎 松原 謙一郎 佐藤 太一

出版者

一般社団法人日本機械学会

雑誌

日本機械学會論文集. C編 (ISSN:03875024)

巻号頁・発行日

vol.61, no.592, pp.4730-4735, 1995-12-25

被引用文献数

16

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Strange sounds generated by machines express trouble or poor condition of the machines. Especially, in automobiles and air conditioners, strange sounds are paid attentions carefully, and the sources of those sounds are investigated and improved. To express strange sounds in Japanese, many kinds of onomatopoeia are used. Onomatopoeia is characteristic of Japanese culture. In this paper, the relationship between onomatopoeia expressing impulsive sounds and beat sounds, and the real sounds of the phenomena, are studied from the viewpoint of acoustic physics.

著者

田中 基八郎 松原 謙一郎 佐藤 太一

出版者

一般社団法人日本音響学会

雑誌

日本音響学会誌 (ISSN:03694232)

巻号頁・発行日

vol.53, no.6, pp.477-482, 1997-06-01

被引用文献数

9

著者

大野 麻里恵 佐藤 太一 田中 基八郎

出版者

一般社団法人日本機械学会

雑誌

評価・診断に関するシンポジウム講演論文集

巻号頁・発行日

vol.2004, no.3, pp.29-32, 2004-12-15

被引用文献数

1

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Strange sounds generated by machines are expressed by onomatopoeia. And onomatopoeia expresses trouble or poor condition of the machines. Especially, many kinds of onomatopoeia are used for expressing strange sound of automobiles, and the relationship between onomatopoeia and the sources of strange sound is reported. In this study application of onomatopoeia for expressing strange sound is discussed. Onomatopoeia is language which people utter. Therefore it is necessary to clarify the relationship between the frequencies perceived to sound like the onomatopoeic word and uttered sounds. In this report, we paid attention to both the vowel and the consonant of uttered sound of onomatopoeia. As a result we found that the utterance time of a consonant changes by the mechanism of utterance. And the ratio of energy between the vowel and the consonant influences frequency of the sound that an onomatopoeia expresses.

著者

佐藤 太一 尾山 敬一 小林 春美 田中 基八郎

出版者

一般社団法人日本機械学会

雑誌

IIP情報・知能・精密機器部門講演会講演論文集

巻号頁・発行日

vol.2005, pp.320-325, 2005-03-21

被引用文献数

1

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We have performed basic experiments for the purpose of applying onomatopoeia to engineering problems. In these experiments, test subjects were made to perform lifting actions while listening to onomatopoeic utterances. We thereby demonstrated that there is a relationship between the onomatopoeic utterances and the lifting forces exerted by the test subjects. We examined how the lifting forces are related to the magnitude of the onomatopoeic utterances and the envelope of these sounds. Furthermore, by comparing this phenomenon with the effects of simple tones and white noise, we investigated how the lifting force is affected depending on whether or not emotion is expressed when uttering the onomatopoeia.