JP3124024B2 - High-speed mobile body - Google Patents
High-speed mobile bodyInfo
- Publication number
- JP3124024B2 JP3124024B2 JP02272363A JP27236390A JP3124024B2 JP 3124024 B2 JP3124024 B2 JP 3124024B2 JP 02272363 A JP02272363 A JP 02272363A JP 27236390 A JP27236390 A JP 27236390A JP 3124024 B2 JP3124024 B2 JP 3124024B2
- Authority
- JP
- Japan
- Prior art keywords
- speed
- noise
- vehicle
- vehicle body
- aerodynamic noise
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Laminated Bodies (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
- Body Structure For Vehicles (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は，高速走行車両，航空機等の高速移動体の車
体に関するものである。Description: TECHNICAL FIELD The present invention relates to a vehicle body of a high-speed moving body such as a high-speed running vehicle and an aircraft.
（従来の技術） 従来の走行車両は,200km/h以下の走行速度で走行する
ので，空力的騒音は問題にならなかった。また航空機に
ついても，エンジン音が優勢で，空力的騒音は問題にな
らなかったが，車両の高速化，エンジン音の低騒音化に
伴い空力的騒音が問題になってきている。この空力的騒
音の低減に対しては，車体外表面の形状を整形して，流
れに乱れを生じさせないようにしている。(Prior art) Since a conventional traveling vehicle travels at a traveling speed of 200 km / h or less, aerodynamic noise was not a problem. For aircraft, aerodynamic noise was not a problem because engine noise was predominant, but aerodynamic noise has become a problem as the speed of vehicles has increased and engine noise has been reduced. In order to reduce the aerodynamic noise, the shape of the outer surface of the vehicle body is shaped so that the flow is not disturbed.
（発明が解決しようとする課題） 従来は前記のように車両の高速化，エンジン音の低騒
音化に伴って問題になっている空力的騒音に対して車体
外表面の形状を整形して，車体外表面を流れる空気流に
乱れを生じさせないようにしているが，機能上，車体外
表面に段差部，突起部等を設けなければならない場合が
ある。(Problem to be Solved by the Invention) Conventionally, as described above, the shape of the outer surface of the vehicle body is shaped by aerodynamic noise, which has been a problem with the increase in speed of the vehicle and the reduction of engine noise, Although the turbulence is not generated in the airflow flowing on the outer surface of the vehicle body, there are cases where it is necessary to provide a step portion, a projection, or the like on the outer surface of the vehicle body in terms of function.
その一例を第７図に示した。高速走行車両の従来例を
第７図に示した。（１）が車体，（４）が同車体（１）
の頂部に設けたパンダグラフカバー，（５）が同車体
（１）の頂部に設けた突起部で，同突起部（５）の外表
面を流れる空気流に乱れ（Ａ）が生じて，この部分の圧
力が変動する。同様に上記パンダグラフカバー（４）の
外表面を流れる空気流に乱れ（Ｂ）が生じ，この部分の
圧力が変動して，これらの突起部（５）及びパンダグラ
フカバー（４）が空力的騒音発生源（Ｃ）になってい
る。One example is shown in FIG. FIG. 7 shows a conventional example of a high-speed traveling vehicle. (1) is the car body, (4) is the car body (1)
The pandagraph cover provided on the top of the vehicle body (5) is a protrusion provided on the top of the vehicle body (1), and the air flow flowing on the outer surface of the protrusion (5) is disturbed (A). The pressure in the part fluctuates. Similarly, a turbulence (B) is generated in the air flow flowing on the outer surface of the pandagraph cover (4), and the pressure in this portion fluctuates, so that these projections (5) and the pandagraph cover (4) become aerodynamic. It is the noise source (C).
本発明は前記の問題点に鑑み提案するものであり，そ
の目的とする処は，空力的騒音を低減できて，走行車両
に適用した場合には，高速走行できる上に，地上設備に
要する費用を大幅に低減できる。また航空機に適用した
場合には，発着回数を増大できる上に，離発着運行の自
由度を高めることができる高速移動体の車体を提供しよ
うとする点にある。The present invention has been proposed in view of the above problems, and its purpose is to reduce aerodynamic noise, and when applied to a traveling vehicle, can travel at a high speed, and at the same time cost required for ground equipment. Can be greatly reduced. Another object of the present invention is to provide a vehicle body of a high-speed moving body that can increase the number of departures and arrivals and increase the degree of freedom of departure and arrival operation when applied to an aircraft.
（課題を解決するための手段） 上記の目的を達成するために，本発明の高速移動体の
車体は，空力的騒音発生源の外周面に吸着材を配設して
いる。(Means for Solving the Problems) In order to achieve the above object, the vehicle body of the high-speed moving body of the present invention is provided with an adsorbent on the outer peripheral surface of the aerodynamic noise source.
（作用） 本発明の高速移動体の車体は前記のように構成されて
おり，高速移動時，空力的騒音発生源の外周面に取付け
た吸音材の外表面を流れる空気流に乱れが生じ，圧力が
変動して，空力的騒音が発生するが，この空力的騒音を
上記吸音材により吸収して，低減する。(Operation) The vehicle body of the high-speed moving body of the present invention is configured as described above, and when moving at high speed, turbulence occurs in the airflow flowing on the outer surface of the sound absorbing material attached to the outer peripheral surface of the aerodynamic noise source, The pressure fluctuates and generates aerodynamic noise, which is absorbed and reduced by the sound absorbing material.
（実施例） 次に本発明の高速移動体の車体を高速走行車両に適用
した第1,2図に示す第１実施例により説明すると，
（１）が車体，（４）が同車体（１）の頂部に設けたパ
ンダグラフカバー（空力的騒音発生源），（３）が本発
明で最も特徴とする吸音材で，同吸音材（３）が上記パ
ンダグラフカバー（４）の周りに取付けられている。(Embodiment) Next, a description will be given of a first embodiment shown in FIGS.
(1) is a vehicle body, (4) is a pandagraph cover (aerodynamic noise source) provided on the top of the vehicle body (1), and (3) is a sound absorbing material which is the most characteristic of the present invention. 3) is mounted around the pandagraph cover (4).
次に前記第1,2図に示す高速走行車両の作用を説明す
る。高速移動時，パンダグラフカバー（４）の外表面に
取付けた吸音材（３）の外表面を流れる空気流に乱れが
生じ，圧力が変動して，圧力的騒音が発生するが，この
空力的騒音を吸音材（３）により吸収して，低減する。Next, the operation of the high-speed traveling vehicle shown in FIGS. 1 and 2 will be described. When moving at high speed, the airflow flowing on the outer surface of the sound absorbing material (3) attached to the outer surface of the pandagraph cover (4) is disturbed, and the pressure fluctuates, generating pressure noise. Noise is absorbed and reduced by the sound absorbing material (3).
その結果，騒音面から規制されていた走行車両の速度
制限が解除されて，高速走行が可能になる。また高速走
行車両の軌動周辺に配置されている防音壁等が不用にな
るか，これが非常に簡略化されて，地上設備に要する費
用が大幅に低減する。As a result, the speed limit of the traveling vehicle, which has been restricted in terms of noise, is released, and high-speed traveling becomes possible. In addition, a soundproof wall or the like disposed around the track of a high-speed traveling vehicle becomes unnecessary or is greatly simplified, and the cost required for ground equipment is greatly reduced.
また本高速移動体の車体を航空機に適用した場合に
は，空港の騒音規制により制限されていた航空機の発着
回数が増える。また発着時間帯の延長も可能で，離発着
運行の自由度が高められる。In addition, when the body of the high-speed moving body is applied to an aircraft, the number of times the aircraft has been departed and arrived at has been limited by airport noise regulations. In addition, it is possible to extend the departure / arrival time zone, which enhances the freedom of departure / arrival operation.
第3,4図は，第２実施例を示しており，（２）が車体
（１）の左右側面下部に形成した張り出し部を整形する
フエアリリング，（３）が同フエアリング（２）の外周
面に取付けた吸音材で，この第２実施例でも，前記と同
様の作用が行われる。3 and 4 show a second embodiment, in which (2) is a fairing ring for shaping the overhang formed in the lower left and right side surfaces of the vehicle body (1), and (3) is an outer peripheral surface of the fairing (2). The same operation as described above is performed in the second embodiment.
第5,6図は，第３実施例を示しており，（５）が車体
（１）の頂部に設けた突起部，（３）が同突起部（５）
の外周面に取付けた吸音材で，この第３実施例でも，前
記と同様の作用が行われる。5 and 6 show a third embodiment, in which (5) is a projection provided on the top of the vehicle body (1), and (3) is a projection (5).
The sound absorbing material attached to the outer peripheral surface of the third embodiment has the same effect as described above in the third embodiment.
（発明の効果） 本発明の高速移動体は前記のように高速移動時，空力
的騒音発生源の外周面に取付けた吸音材の外表面を流れ
る空気流に乱れが生じ，圧力が変動して，空力的騒音が
発生するが，この空力的騒音を上記吸音材により吸収し
て，低減するので，次の効果を達成できる。即ち， 騒音面から規制されていた走行車両の速度制限を解除
できて，高速走行できる。また高速走行車両の軌道周辺
に配置していた防音壁等を不用にできるか，これを簡略
化できて，地上設備に要する費用を大幅に低減できる。(Effect of the Invention) As described above, when the high-speed moving body of the present invention moves at high speed, the air flow flowing on the outer surface of the sound absorbing material attached to the outer peripheral surface of the aerodynamic noise source is disturbed, and the pressure fluctuates. Although aerodynamic noise is generated, the aerodynamic noise is absorbed by the sound absorbing material and reduced, so that the following effects can be achieved. That is, the speed limit of the traveling vehicle, which has been restricted in terms of noise, can be released, and the vehicle can travel at high speed. In addition, it is possible to eliminate or simplify the soundproofing walls and the like disposed around the track of the high-speed running vehicle, and to greatly reduce the cost required for ground equipment.
また本高速移動体の車体を航空機に適用した場合に
は，空港の騒音規制により制限されていた航空機の発着
回数を増大できる。また発着時間帯の延長が可能で，離
発着運行の自由度を高めることができる効果がある。Further, when the body of the high-speed moving body is applied to an aircraft, the number of times the aircraft has been departed and arrived, which has been restricted by airport noise regulations, can be increased. In addition, it is possible to extend the departure / arrival time zone, which has the effect of increasing the degree of freedom of departure / arrival operation.
第１図は本発明に係わる高速移動体の車体の第１実施例
を示す正面図，第２図はその側面図，第３図は第２実施
例を示す正面図，第４図はその側面図，第５図は第３実
施例を示す正面図，第６図はその側面図，第７図は従来
の高速走行車両を示す側面図である。 （１）……車体，（２）（４）（５）……空力的騒音発
生源（突起部），（３）……吸音材。1 is a front view showing a first embodiment of a high-speed moving body according to the present invention, FIG. 2 is a side view thereof, FIG. 3 is a front view showing a second embodiment, and FIG. FIG. 5, FIG. 5 is a front view showing the third embodiment, FIG. 6 is a side view thereof, and FIG. 7 is a side view showing a conventional high-speed traveling vehicle. (1) ... body, (2) (4) (5) ... aerodynamic noise source (projection), (3) ... sound absorbing material.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 柴田 勝彦 愛知県名古屋市港区大江町10番地 三菱 重工業株式会社名古屋航空宇宙システム 製作所内 (56)参考文献 特開 昭58−4667（ＪＰ，Ａ) 特開 昭54−35913（ＪＰ，Ａ) 実開 昭52−140512（ＪＰ，Ｕ) ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Katsuhiko Shibata Nagoya Aerospace System Works, Mitsubishi Heavy Industries, Ltd. 10 Oemachi, Minato-ku, Nagoya-shi, Aichi (56) References JP-A-58-4667 (JP, A) JP-A-54-35913 (JP, A) JP-A-52-140512 (JP, U)
Claims (1)
したことを特徴とする高速移動体の車体。1. A vehicle body for a high-speed moving body, wherein a sound absorbing material is provided on an outer peripheral surface of an aerodynamic noise source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02272363A JP3124024B2 (en) | 1990-10-12 | 1990-10-12 | High-speed mobile body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02272363A JP3124024B2 (en) | 1990-10-12 | 1990-10-12 | High-speed mobile body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04151370A JPH04151370A (en) | 1992-05-25 |
| JP3124024B2 true JP3124024B2 (en) | 2001-01-15 |
Family
ID=17512842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02272363A Expired - Fee Related JP3124024B2 (en) | 1990-10-12 | 1990-10-12 | High-speed mobile body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3124024B2 (en) |
-
1990
- 1990-10-12 JP JP02272363A patent/JP3124024B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04151370A (en) | 1992-05-25 |
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