FR2284801A1 - Once only shock absorber e.g. for reactor shutdown rods - is cylinder made from stacked elements giving constant deceleration(NL-12.3.76) - Google Patents

Once only shock absorber e.g. for reactor shutdown rods - is cylinder made from stacked elements giving constant deceleration(NL-12.3.76)

Info

Publication number
FR2284801A1
FR2284801A1 FR7430608A FR7430608A FR2284801A1 FR 2284801 A1 FR2284801 A1 FR 2284801A1 FR 7430608 A FR7430608 A FR 7430608A FR 7430608 A FR7430608 A FR 7430608A FR 2284801 A1 FR2284801 A1 FR 2284801A1
Authority
FR
France
Prior art keywords
beams
shock absorber
once
line
force
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.)
Granted
Application number
FR7430608A
Other languages
French (fr)
Other versions
FR2284801B1 (en
Inventor
Jean Martin
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.)
Alsacienne Atom
Original Assignee
Alsacienne Atom
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 Alsacienne Atom filed Critical Alsacienne Atom
Priority to FR7430608A priority Critical patent/FR2284801A1/en
Priority to DE19752539645 priority patent/DE2539645A1/en
Priority to BE1006867A priority patent/BE833150A/en
Priority to NL7510637A priority patent/NL7510637A/en
Priority to IT2710675A priority patent/IT1042439B/en
Publication of FR2284801A1 publication Critical patent/FR2284801A1/en
Application granted granted Critical
Publication of FR2284801B1 publication Critical patent/FR2284801B1/fr
Granted 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
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/12—Vibration-dampers; Shock-absorbers using plastic deformation of members
    • F16F7/123—Deformation involving a bending action, e.g. strap moving through multiple rollers, folding of members

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Dampers (AREA)

Abstract

An irreversible shock absorber (i.e. for once-only use), for retarding a mass moving in a straight line, consists of a cylindrical structure which is axially compressed during the shock-absorbing stroke and which is constituted of short beams each laid with its ends resting on beams below; the bearing supports between successive beams along the line of action of the force are displaced laterally from the line of the force by a distance at least equal to one half of the length of a beam perpendicularly to the line of the force. In a prefd. arrangement, the cylindrical structure has all the supports between beams lying in a common cylindrical surface, the beams being curved so that each forms a sector of the cylinder, with openings between them. The shock absorber is used e.g. for braking safety vehicles or for arresting emergency shutdown control rods in a nuclear reactor.
FR7430608A 1974-09-10 1974-09-10 Once only shock absorber e.g. for reactor shutdown rods - is cylinder made from stacked elements giving constant deceleration(NL-12.3.76) Granted FR2284801A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR7430608A FR2284801A1 (en) 1974-09-10 1974-09-10 Once only shock absorber e.g. for reactor shutdown rods - is cylinder made from stacked elements giving constant deceleration(NL-12.3.76)
DE19752539645 DE2539645A1 (en) 1974-09-10 1975-09-05 DEVICE FOR IRREVERSIBLE SHOCK ABSORPTION
BE1006867A BE833150A (en) 1974-09-10 1975-09-08 KINETIC ENERGY ABSORBER WITH SUPERIMPOSED BEAMS
NL7510637A NL7510637A (en) 1974-09-10 1975-09-09 DEVICE FOR ABSORBING KINETIC ENERGY WITH BEAMS SPACED ON EACH OTHER.
IT2710675A IT1042439B (en) 1974-09-10 1975-09-10 KINETIC ENERGY ABSORBER WITH OVERLAPPING BARS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7430608A FR2284801A1 (en) 1974-09-10 1974-09-10 Once only shock absorber e.g. for reactor shutdown rods - is cylinder made from stacked elements giving constant deceleration(NL-12.3.76)

Publications (2)

Publication Number Publication Date
FR2284801A1 true FR2284801A1 (en) 1976-04-09
FR2284801B1 FR2284801B1 (en) 1979-03-09

Family

ID=9142923

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7430608A Granted FR2284801A1 (en) 1974-09-10 1974-09-10 Once only shock absorber e.g. for reactor shutdown rods - is cylinder made from stacked elements giving constant deceleration(NL-12.3.76)

Country Status (5)

Country Link
BE (1) BE833150A (en)
DE (1) DE2539645A1 (en)
FR (1) FR2284801A1 (en)
IT (1) IT1042439B (en)
NL (1) NL7510637A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2401051A2 (en) * 1976-05-26 1979-03-23 Porsche Ag Deformable steering wheel assembly - has apertured tube with zones deformable under differing loads
FR2415774A1 (en) * 1978-01-30 1979-08-24 Commissariat Energie Atomique INERTIA WHEEL PROTECTION DEVICE
US4759430A (en) * 1986-01-14 1988-07-26 Werkzeugmaschinen-Fabrik Oerlikon-Buhrle Ag Energy absorbing arrangements
FR2629162A1 (en) * 1988-03-25 1989-09-29 Ecole Nale Superieure Meca SHOCK ABSORBING DEVICE
CN101294611B (en) * 2007-04-24 2010-04-14 株式会社神户制钢所 Vibration reduction component

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3838595A1 (en) * 1988-11-15 1990-05-17 Kolbenschmidt Ag COMPONENT FOR ABSORPTION OF ENERGY

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1506378A (en) * 1966-09-08 1967-12-22 Electricite De France Device for limiting stresses on the fixed structures of a nuclear reactor
BE811622A (en) * 1973-03-02 1974-08-27 FOAM CONCRETE

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1506378A (en) * 1966-09-08 1967-12-22 Electricite De France Device for limiting stresses on the fixed structures of a nuclear reactor
BE811622A (en) * 1973-03-02 1974-08-27 FOAM CONCRETE

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2401051A2 (en) * 1976-05-26 1979-03-23 Porsche Ag Deformable steering wheel assembly - has apertured tube with zones deformable under differing loads
FR2415774A1 (en) * 1978-01-30 1979-08-24 Commissariat Energie Atomique INERTIA WHEEL PROTECTION DEVICE
US4759430A (en) * 1986-01-14 1988-07-26 Werkzeugmaschinen-Fabrik Oerlikon-Buhrle Ag Energy absorbing arrangements
CH668635A5 (en) * 1986-01-14 1989-01-13 Oerlikon Buehrle Ag BRAKE SLEEVE AND COUNTERMEASURE FOR A DEVICE FOR SHOCK-FREE SHOOTING.
FR2629162A1 (en) * 1988-03-25 1989-09-29 Ecole Nale Superieure Meca SHOCK ABSORBING DEVICE
CN101294611B (en) * 2007-04-24 2010-04-14 株式会社神户制钢所 Vibration reduction component

Also Published As

Publication number Publication date
FR2284801B1 (en) 1979-03-09
NL7510637A (en) 1976-03-12
IT1042439B (en) 1980-01-30
DE2539645A1 (en) 1976-03-18
BE833150A (en) 1976-03-08

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Legal Events

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