JPS6449734A - Precise vibration absorbing device - Google Patents

Precise vibration absorbing device

Info

Publication number
JPS6449734A
JPS6449734A JP20786687A JP20786687A JPS6449734A JP S6449734 A JPS6449734 A JP S6449734A JP 20786687 A JP20786687 A JP 20786687A JP 20786687 A JP20786687 A JP 20786687A JP S6449734 A JPS6449734 A JP S6449734A
Authority
JP
Japan
Prior art keywords
head
cone
vibration
circular
pole
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.)
Pending
Application number
JP20786687A
Other languages
Japanese (ja)
Inventor
Toshio Kasahara
Kazuya Shimizu
Hiroshi Yamashita
Keiichi Takayama
Shiro Hasegawa
Katsuaki Nanba
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SWCC Corp
Original Assignee
Showa Electric Wire and Cable Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Showa Electric Wire and Cable Co filed Critical Showa Electric Wire and Cable Co
Priority to JP20786687A priority Critical patent/JPS6449734A/en
Publication of JPS6449734A publication Critical patent/JPS6449734A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/03—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using magnetic or electromagnetic means

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

PURPOSE:To effect passive braking by means of the low number of passive dampers, by a method wherein the one of a pair of like-polar magnetic members the one of which has a circular (or square) cone and the other of which has a recessed surface positioned facing to the circular cone is excited by means of a control signal. CONSTITUTION:A passive damper is formed with a head 62 connected to a vibration absorbing bed 1 through a permanent magnet 61 and a pole 64 secured to an electromagnet 63 and forming a circular cone or a square cone, and the head 62 has a recessed surface positioned facing to the circular (or square) cone. A steady current flows through a driven winding 66 of the electromagnet 63 on the sides, positioned facing each other, of the head and the pole, and the sides are kept with a given distance therebetween. When the distance therebetween is fluctuated due to vibration, a current is generated at the winding 66, a brake force is generated by means of internal resistance, and a control current is applied from a circuit part to output a control signal. Thus, since an exciting force and a brake force in a reverse phase are exerted on the head 62, a damping force in the direction of displacement is generated in the shapes of the head 62 and the pole 64 together with a damping force, and vibration of a vibration absorbing bed 1 is substantially offset for absorption of vibration.
JP20786687A 1987-08-20 1987-08-20 Precise vibration absorbing device Pending JPS6449734A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20786687A JPS6449734A (en) 1987-08-20 1987-08-20 Precise vibration absorbing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20786687A JPS6449734A (en) 1987-08-20 1987-08-20 Precise vibration absorbing device

Publications (1)

Publication Number Publication Date
JPS6449734A true JPS6449734A (en) 1989-02-27

Family

ID=16546845

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20786687A Pending JPS6449734A (en) 1987-08-20 1987-08-20 Precise vibration absorbing device

Country Status (1)

Country Link
JP (1) JPS6449734A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101692289B1 (en) * 2016-07-29 2017-01-04 김형돈 vibration isolating device using permanent magnet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101692289B1 (en) * 2016-07-29 2017-01-04 김형돈 vibration isolating device using permanent magnet

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