BR102015008197A8 - machine for conducting resonance bending fatigue tests - Google Patents

machine for conducting resonance bending fatigue tests

Info

Publication number
BR102015008197A8
BR102015008197A8 BR102015008197A BR102015008197A BR102015008197A8 BR 102015008197 A8 BR102015008197 A8 BR 102015008197A8 BR 102015008197 A BR102015008197 A BR 102015008197A BR 102015008197 A BR102015008197 A BR 102015008197A BR 102015008197 A8 BR102015008197 A8 BR 102015008197A8
Authority
BR
Brazil
Prior art keywords
bending fatigue
specimen
counterweights
supported
tests
Prior art date
Application number
BR102015008197A
Other languages
Portuguese (pt)
Other versions
BR102015008197A2 (en
BR102015008197B1 (en
Inventor
Mosquen Amauri
Duarte Nunes Cristian
Favaro Borges Marcelo
De Oliveira Pinto Otávio
Roberto Strohaecker Telmo
Original Assignee
Favaro Borges Marcelo
Univ Federal Rio Grande Sul
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 Favaro Borges Marcelo, Univ Federal Rio Grande Sul filed Critical Favaro Borges Marcelo
Priority to BR102015008197-9A priority Critical patent/BR102015008197B1/en
Publication of BR102015008197A2 publication Critical patent/BR102015008197A2/en
Publication of BR102015008197A8 publication Critical patent/BR102015008197A8/en
Publication of BR102015008197B1 publication Critical patent/BR102015008197B1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M7/00—Vibration-testing of structures; Shock-testing of structures
    • G01M7/02—Vibration-testing by means of a shake table
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

' é ã |v|aou|na para a rea|.|zaçao de ensa|os de |=ao|oa em |=|.exao pon ressonãnc|a de ouros a presente invenção descrita nesse relatório consiste em um conceito de máquina para a realização de ensaios de fadiga em flexão por ressonância de dutos o qual permite principalmente, entre outras vantagens, o ajuste fino automático e instantâneo dos apoios em relação aos nós de vibração da amostra durante a execução do teste. para tanto, o corpo de prova (2) ê apoiado sobre cabos de aço (3), os quais são conectados a troles especiais (5) com rodízios polimêricos (6) por meio de tensores (4). o conjunto é suportado por dois pórticos metálicos (1). nas extremidades do corpo de prova (2), são posicionados contrapesos de aço (8), (10). em um dos contrapesos, são colocadas massas adicionais de aço (9). no outro, ê acoplada a massa excêntrica (12), que por sua vez ê acionada por um sistema de transmissão eletromecânico. a rotação da massa excêntrica (12) ê controlada por um inversor de frequência. o controle de deformação aplicada no duto durante o teste é realizado por meio de um sistema de aquisição e controle em malha fechada através do ajuste remoto da rotação do motor elétrico (13).It is the same for the performance of the tests on the resonance of other diamonds. The present invention described in this report consists of a machine concept. for conducting resonance bending fatigue tests which mainly allows, among other advantages, the automatic and instantaneous fine adjustment of the supports in relation to the vibration nodes of the sample during the test run. To this end, the specimen (2) is supported by wire ropes (3), which are connected to special trolleys (5) with polymeric casters (6) by means of tensioners (4). The set is supported by two metal frames (1). At the ends of the specimen (2), steel counterweights (8), (10) are positioned. In one of the counterweights additional steel masses are placed (9). in the other, the eccentric mass 12 is coupled, which in turn is driven by an electromechanical transmission system. the rotation of the eccentric mass (12) is controlled by a frequency inverter. Deformation control applied to the duct during the test is carried out by means of a closed loop acquisition and control system by remote adjustment of the electric motor speed (13).

BR102015008197-9A 2015-04-13 2015-04-13 machine for performing fatigue tests in bending by resonance of pipelines BR102015008197B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BR102015008197-9A BR102015008197B1 (en) 2015-04-13 2015-04-13 machine for performing fatigue tests in bending by resonance of pipelines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR102015008197-9A BR102015008197B1 (en) 2015-04-13 2015-04-13 machine for performing fatigue tests in bending by resonance of pipelines

Publications (3)

Publication Number Publication Date
BR102015008197A2 BR102015008197A2 (en) 2016-10-18
BR102015008197A8 true BR102015008197A8 (en) 2018-09-11
BR102015008197B1 BR102015008197B1 (en) 2021-07-06

Family

ID=57127887

Family Applications (1)

Application Number Title Priority Date Filing Date
BR102015008197-9A BR102015008197B1 (en) 2015-04-13 2015-04-13 machine for performing fatigue tests in bending by resonance of pipelines

Country Status (1)

Country Link
BR (1) BR102015008197B1 (en)

Also Published As

Publication number Publication date
BR102015008197A2 (en) 2016-10-18
BR102015008197B1 (en) 2021-07-06

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Legal Events

Date Code Title Description
B03A Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]
B25A Requested transfer of rights approved

Owner name: UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL (BR/RS)

B03H Publication of an application: rectification [chapter 3.8 patent gazette]

Free format text: REFERENTE A RPI 2389 DE 18/10/2016, QUANTO AO ITEM (72).

B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06V Preliminary requirement: patent application procedure suspended [chapter 6.22 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 13/04/2015, OBSERVADAS AS CONDICOES LEGAIS.