DE596348C - Device for practicing the procedure for examining finished technical structures such as bridges, ships, towers, in their state of use with regard to their dynamic behavior - Google Patents

Device for practicing the procedure for examining finished technical structures such as bridges, ships, towers, in their state of use with regard to their dynamic behavior

Info

Publication number
DE596348C
DE596348C DEL72916D DEL0072916D DE596348C DE 596348 C DE596348 C DE 596348C DE L72916 D DEL72916 D DE L72916D DE L0072916 D DEL0072916 D DE L0072916D DE 596348 C DE596348 C DE 596348C
Authority
DE
Germany
Prior art keywords
towers
ships
bridges
state
procedure
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
DEL72916D
Other languages
German (de)
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.)
WILHELM SPAETH DR
Losenhausenwerk Duesseldorfer Maschinenbau AG
Original Assignee
WILHELM SPAETH DR
Losenhausenwerk Duesseldorfer Maschinenbau AG
Publication date
Priority to DEL72916D priority Critical patent/DE596348C/en
Application granted granted Critical
Publication of DE596348C publication Critical patent/DE596348C/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
    • 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
    • G01M5/0066—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by exciting or detecting vibration or acceleration

Description

Einrichtung zur Ausübung des Verfahrens zur Untersuchung fertiger technischer Gebilde, wie Brücken, Schiffe, Türme, in ihrem Gebrauchszustand hinsichtlich ihres dynamischen Verhaltens Bei Untersuchungen technischer Gebilde nach dem Verfahren des Hauptpatents584553 ist häufig eine Untersuchungsmöglichkeit mit verschiedenen Exzentrizitäten erwünscht, um eine vollständige Kennzeichnung des zu untersuchenden Gebildes zu erzielen. Um leine möglichst schnelle Abwicklung des Umstellungsvorganges zu erreichen, wird erfindungsgemäß .eine besondere Anordnung vorgeschlagen, welche eine bequeme Verstellung derExzentrizitäten der Schwungmassen ermöglicht je nach der Amplitude, welche in der betreffenden Richtung erwünscht ist.Device for carrying out the procedure for examining pavers technical structures, such as bridges, ships, towers, in terms of their state of use their dynamic behavior when investigating technical structures according to the procedure of the main patent 584553 is often an examination possibility with different Eccentricities are desirable in order to fully identify the object to be examined To achieve something created. In order to ensure that the conversion process is carried out as quickly as possible A special arrangement is proposed according to the invention, which a comfortable adjustment of the eccentricities of the centrifugal masses allows depending on the amplitude which is desired in the relevant direction.

In der Abbildung ist eine derartige Anordnung beispielsweise und schematisch dargestellt. a bedeutet das Gehäuse, in welchem die Einrichtung zur Erzeugung der periodischen Kraftimpulse eingebaut ist. Das Gehäuse a ist an verschiedenen Seiten mit Auflageflächen b und c versehen. Die Schwungmasse d sitzt mit ihrer exzentrischen Bohrung auf der ebenfalls exzentrischen Wellee, welche an ihrem einen Ende ein Handrad f trägt. Auf der Exzenterwelle e sitzt eine Büchse g, welche an ihrem Ende als Flansch ausgebildet ist und auf welche das Antriebszahnrad lt aufgekeilt wird. Die Büchse g, kann mit Hilfe einer beliebigen, hier nicht gezeichneten Einrichtung auf Exzenterwelle e festgeklemmt oder mit ihr in beliebiger Weise lösbar verbunden werden. Schließlich trägt die Schwungmasse d einen Bolzen!, welcher in einen Schlitz des Flansches der Büchse g hineinragt.Such an arrangement is shown schematically and by way of example in the figure. a means the housing in which the device for generating the periodic force pulses is installed. The housing a is provided with bearing surfaces b and c on different sides. The centrifugal mass d sits with its eccentric bore on the likewise eccentric shaft, which carries a handwheel f at one end. A sleeve g sits on the eccentric shaft e, which is designed as a flange at its end and onto which the drive gear lt is keyed. The bushing g can be clamped onto the eccentric shaft e with the help of any device (not shown here) or can be detachably connected to it in any desired manner. Finally, the flywheel d carries a bolt! Which protrudes into a slot in the flange of the sleeve g.

Bei der in der Abbildung beispielsweise dargestellten Anordnung kann die ganze Einrichtung entweder mit Fläche b nach unten oder senkrecht dazu, also mit der Fläche c nach unten, aufgestellt werden, so daß sich in an sich bekannter Weise eine Untersuchungsmöglichkeit in verschiedenen Richtungen ergibt. Die mit dem Übergang auf eine andere Schwingungsrichtung vielfach notwendig werdende Verstellung der Exzentrizität der Schwungmasse geht folgendermaßen vor sich: Die Klemmung bzw. Befestigung zwischen Büchse g und Exzenterwelle .e wird gelöst und die Exzenterwelle mittels Handrades um einen bestimmten Betrag gedreht. Hierbei ändert sich die Exzentrizität der Schwungmasse d, indem der Bolzen i in dem Schlitz des Flansches der Büchse g gleitet. Hierauf wird Büchse g wieder auf Welle e festgeklemmt bzw. befestigt. Nach Ingangsetzen des Antriebes wird nun die Schwungmasse durch Zahnrad lt über den Flansch der Büchse g und über den Bolzen i in Umdrehung versetzt.In the arrangement shown in the figure, for example, the entire device can be set up either with surface b down or perpendicular to it, i.e. with surface c down, so that there is a possibility of examination in different directions in a manner known per se. The adjustment of the eccentricity of the centrifugal mass, which is often necessary with the transition to another direction of oscillation, proceeds as follows: The clamping or fastening between the bushing g and eccentric shaft e is released and the eccentric shaft is rotated by a certain amount using the handwheel. This changes the eccentricity of the flywheel mass d in that the bolt i slides in the slot in the flange of the bushing. Thereupon sleeve g is clamped or fastened again on shaft e. After starting the drive, the flywheel is now set in rotation by the gearwheel lt via the flange of the bushing g and via the bolt i.

Claims (1)

PATENTANSPRUCH: Einrichtung zur Ausübung des Verfahrens zur Untersuchung fertiger technischer Gebilde, wie Brücken, Schiffe, Türme, in ihrem Gebrauchszustand hinsichtlich ihres dynamischen Verhaltens nach Patent 584553 dadurch gekennzeichnet, daß die exzentrisch gebohrte Schwungmasse (d) auf einer exzentrischen Welle (e) willkürlich verdreht und eine zur Mitnahme der Schwungmasse ausgebildete Büchse (g) auf der exzentrischen Welle in an sich beliebiger Weise festgeklemmt oder lösbar befestigt werden kann.PATENT CLAIM: Device for carrying out the method of investigation finished technical structures, such as bridges, ships, towers, in their state of use characterized in terms of their dynamic behavior according to patent 584553, that the eccentrically drilled flywheel (d) on an eccentric shaft (e) arbitrarily twisted and a bush designed to take along the flywheel (g) clamped or releasable on the eccentric shaft in any manner can be attached.
DEL72916D Device for practicing the procedure for examining finished technical structures such as bridges, ships, towers, in their state of use with regard to their dynamic behavior Expired DE596348C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL72916D DE596348C (en) Device for practicing the procedure for examining finished technical structures such as bridges, ships, towers, in their state of use with regard to their dynamic behavior

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL72916D DE596348C (en) Device for practicing the procedure for examining finished technical structures such as bridges, ships, towers, in their state of use with regard to their dynamic behavior

Publications (1)

Publication Number Publication Date
DE596348C true DE596348C (en) 1934-05-04

Family

ID=7283114

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL72916D Expired DE596348C (en) Device for practicing the procedure for examining finished technical structures such as bridges, ships, towers, in their state of use with regard to their dynamic behavior

Country Status (1)

Country Link
DE (1) DE596348C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741192C (en) * 1936-06-26 1943-11-06 August Hertwig Dr Ing Oscillator with adjustable balancing masses for the vibration analysis of technical structures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741192C (en) * 1936-06-26 1943-11-06 August Hertwig Dr Ing Oscillator with adjustable balancing masses for the vibration analysis of technical structures

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