Journal issue
Volume 22 (1998)
- Issue 6 Pages 303-
- Issue 5 Pages 237-
- Issue 4 Pages 175-
- Issue 3 Pages 121-
- Issue 2 Pages 63-
- Issue 1 Pages 2-
Predecessor
Volume 22
, Issue 6
Showing 1-8 articles out of 8 articles from the selected issue
- |<
- <
- 1
- >
- >|
-
Seiichiro Namba1998 Volume 22 Issue 6 Pages 303-309
Published: December 01, 1998
Released: October 06, 2009
JOURNALS FREE ACCESSDownload PDF (1067K) -
Juichi Igarashi1998 Volume 22 Issue 6 Pages 310-316
Published: December 01, 1998
Released: October 06, 2009
JOURNALS FREE ACCESSDownload PDF (1206K) -
Kazuhiro Kuno1998 Volume 22 Issue 6 Pages 317-321
Published: December 01, 1998
Released: October 06, 2009
JOURNALS FREE ACCESSDownload PDF (606K) -
Yohzoh Okumura, Yasaki Oishi, Yoshiaki Mishina1998 Volume 22 Issue 6 Pages 322-326
Published: December 01, 1998
Released: October 06, 2009
JOURNALS FREE ACCESSDownload PDF (749K) -
Ichiro Yamada1998 Volume 22 Issue 6 Pages 327-333
Published: December 01, 1998
Released: October 06, 2009
JOURNALS FREE ACCESSDownload PDF (1001K) -
Hirohito Yasuoka1998 Volume 22 Issue 6 Pages 334-340
Published: December 01, 1998
Released: October 06, 2009
JOURNALS FREE ACCESSDownload PDF (751K) -
Kazuhisa Miyashita, Ikuharu Morioka1998 Volume 22 Issue 6 Pages 341-345
Published: December 01, 1998
Released: October 06, 2009
JOURNALS FREE ACCESSDownload PDF (725K) -
Tohru Kawaharazuka, Tomotaka Hiramatsu, Heiichiro Ohkawa1998 Volume 22 Issue 6 Pages 346-352
Published: December 01, 1998
Released: October 06, 2009
JOURNALS FREE ACCESSProblem on noise emitted from drain pipe has always been caused. In recent years, the number of apartment houses and hotels which have different plan at each floor is increased because originality for room design is regarded as important. So new problems on noise emitted from drain pipe have been arisen. It is supposed that the investigations on concrete reduction methods for noise emitted from drain pipe and the many applications have been carried out. But paper on these investigations is very few.
The experimental investigations on generation mechanism, basic characteristics and reduction method of sound emitted from drain pipe were carried out. From these results the followings were shown.
(1) Sound emitted from drain pipe is caused by vibration of pipe wall which is generated by excitation by water drop of drain.
(2) Emitted sound is different from material of drain pipe. And the magnitude depends on the driving point impedance of pipe wall.
(3) Relation between emitted sound and drain quantity is linear.
(4) Emitted sound is almost constant regardless of the height of drain because drain is running at inner wall of pipe.View full abstractDownload PDF (813K)
- |<
- <
- 1
- >
- >|