DE681238C - Endurance test machine for strength tests of entire constructions, especially of aircraft components - Google Patents

Endurance test machine for strength tests of entire constructions, especially of aircraft components

Info

Publication number
DE681238C
DE681238C DEH153511D DEH0153511D DE681238C DE 681238 C DE681238 C DE 681238C DE H153511 D DEH153511 D DE H153511D DE H0153511 D DEH0153511 D DE H0153511D DE 681238 C DE681238 C DE 681238C
Authority
DE
Germany
Prior art keywords
strength tests
aircraft components
test machine
endurance test
constructions
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
Application number
DEH153511D
Other languages
German (de)
Inventor
Dr-Ing Heinz Friedric Vieregge
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.)
Henschel Flugzeugwerke AG
Original Assignee
Henschel Flugzeugwerke AG
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 Henschel Flugzeugwerke AG filed Critical Henschel Flugzeugwerke AG
Priority to DEH153511D priority Critical patent/DE681238C/en
Application granted granted Critical
Publication of DE681238C publication Critical patent/DE681238C/en
Expired legal-status Critical Current

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
    • G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
    • G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
    • G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Description

Dauerprüfmaschine für Festigkeitsprüfungen von ganzen Konstruktionen, insbesondere von Flugzeugbauteilen Es sind Dauerprüfmaschinen für Festigkeitsprüfungen von ganzen Konstruktionen, insbesondere von Flugzeugbauteilen, mit einem gewichtsbelasteten, mit einer ausrückbaren Hebevorrichtung verbundenen Präflingsträgler, der durch senkrechte oder annähernd senkrechte Stöße die Prüfbeanspruchung herbeiführt, bereits bekannt. Bei diesen bekannten Prüfmaschinen ist der Träger des Prüflings als Gleitschlitten ausgebildet und in senkrechten Gleitführungen verschiebbar gelagert.Endurance testing machine for strength tests of entire constructions, in particular of aircraft components There are endurance testing machines for strength tests of entire constructions, in particular of aircraft components, with a weight-loaded, Prefling carrier connected to a disengageable lifting device, which is supported by vertical or nearly vertical joints causing the test stress, already known. In these known testing machines, the carrier of the test object is a sliding carriage formed and mounted displaceably in vertical sliding guides.

Mit der senkrechten Gleitführung für den Gleitschiitten des Prüflings ist der Nachteil verbunden, daß leicht Störungen durch F.estklemmen des Gleitschlittens auftreten können.With the vertical guide for the slide of the test object is associated with the disadvantage that easily malfunctions due to jamming of the sliding carriage may occur.

Ferner erfordert das bei verschiedenen Bauformen und Anschlußarten des Prüflings, z. B. bei einem zur Aufschlagfläche schräg gestellten Federbein leines Flugzeugfahrnverks, bei der Belastung auftretende Moment einen schweren und teuren Gesamtaufbau der Prüfmaschine. Diese Nachteile werden durch die Dauerprüfmaschine gemäß der Erfindung beseitigt.This also requires different designs and types of connection of the test item, e.g. B. with a strut inclined to the impact surface Flugzeugfahrnverks, a heavy and expensive moment occurring during the load Overall structure of the testing machine. These disadvantages are caused by the fatigue testing machine eliminated according to the invention.

Die Erfindung geht von einer der eingangs erwähnten bekannten Dauerprüfmaschinen aus und besteht darin, daß der Prüflingsträger als an seinem einen Ende ortsfest gelagertes Schwingungsgestänge ausgebildet ist, dessen freies Ende die Aufspannvorrichtung für den Prüfling trägt. The invention is based on one of the known endurance testing machines mentioned at the beginning and consists in the fact that the test object carrier is stationary as at one end mounted oscillating linkage is formed, the free end of which the jig for the test item.

In der Abbildung ist ein Ausführungsbeispiel der erfindungsgemäßen Dauterprüfmaschine dargestellt. In the figure is an embodiment of the invention Endurance testing machine shown.

Der Prüflinge, der hier die Beinstrebe eines Flugzeugfahrwerks darstellt, ist an dem gewichtsbelasteten Träger 2 befestigt, der von den Armen 3 des Schwingungsgestänges getragen wird, die an räumlich ortsfesten Drehzapfen 4 befestigt sind. Die Schwingarme 3 bilden bei dem gezeichneten Ausführungsbeispiel ein Parallelogramm; sie könneun aber auch auf gegenüberliegenden Seiten am Prüflingsträger angreifen. Mit 5 ist die Hebevorrichtung bezeichnet, die elektrisch oder durch ein Druckmittel betrieben werden kann und eine von Hand schaltbare Kupplung für die Verbindung des Hebeorgans mit dem Träger des Prüflings aufweist. The test item, which here represents the leg strut of an aircraft landing gear, is attached to the weight-loaded beam 2 by the arms 3 of the oscillating linkage which are attached to spatially stationary pivot pins 4. The swing arms 3 form a parallelogram in the illustrated embodiment; they could but also attack the specimen carrier on opposite sides. With 5 is denotes the lifting device that is operated electrically or by a pressure medium and a manually switchable coupling for connecting the lifting device with the wearer of the test object.

Claims (1)

PATENTANSPRUC: Dauerprüfmaschine für Festigkeitsprüfungen von ganzen Konstruktionen, insbesondere von Flugzeugbauteilen, mit einem gewichtsbelasteten, mit einer ausrückbaren Hebevorrichtung verbundenen Prüflingsträger, der durch senkrechte oder annähernd senkrechte Stöße die Prüfbeanspruchung herbeiführt, dadurch gekennzeichnet, daß der Prüflingsträger als ein an seinem einen Ende ortsfest gelagertes Schwingungsgestänge ausgebildet ist, dessen freies Ende die Aufspannvorrichtung für den Prüfling trägt. PATENT CLAIM: Endurance testing machine for strength tests of whole Constructions, especially of aircraft components, with a weight-loaded, test specimen carrier connected to a disengageable lifting device, which is supported by vertical or almost vertical joints cause the test stress, characterized in that that the test object carrier as a vibration linkage fixedly mounted at one end is formed, the free end of which carries the jig for the test object.
DEH153511D 1937-11-05 1937-11-05 Endurance test machine for strength tests of entire constructions, especially of aircraft components Expired DE681238C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH153511D DE681238C (en) 1937-11-05 1937-11-05 Endurance test machine for strength tests of entire constructions, especially of aircraft components

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH153511D DE681238C (en) 1937-11-05 1937-11-05 Endurance test machine for strength tests of entire constructions, especially of aircraft components

Publications (1)

Publication Number Publication Date
DE681238C true DE681238C (en) 1939-09-18

Family

ID=7181674

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH153511D Expired DE681238C (en) 1937-11-05 1937-11-05 Endurance test machine for strength tests of entire constructions, especially of aircraft components

Country Status (1)

Country Link
DE (1) DE681238C (en)

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