Abstract:
PURPOSE: A method for estimating a transformed shape of a structure by using a measurement displacement and a recording medium recording a program for the same are provided to estimate a shape displacement in a position besides a displacement measurement position by precisely estimating various shape displacements of 2D and 3D structures based on the minimum number of displacement measurement data. CONSTITUTION: Structure shape functions of a structure are set through a modeling technique (S10). An overlapped shape function is composed by overlapping the structure shape functions and a weighted variable is granted to each structure shape function (S11). Displacement measurement data measured by a displacement measurement device in a displacement measurement position on the structure is inputted (S12). An error function to which a deviation between an estimated transformed shape and the displacement measurement data is applied is set (S13). A value of a weighted variable optimizing the error function is calculated (S14). An estimated shape function is determined by applying the value of the weighted variable to the weighted variable of the overlapped shape function (S16). [Reference numerals] (AA) Start; (BB) End; (S10) Set multiple structure shape functions; (S11) Compose an overlapped shape function → reflect weighted variables; (S12) Input displacement measurement data; (S13) Set an error function; (S14) Calculate the value of a weighted variable; (S15) Reflect removing conditions; (S16) Determine an estimated shape function
Abstract:
A wheel balancer (1) for balancing an allow wheel (2) comprises a support housing (30) and a main shaft (36) onto which the wheel (2) is mounted. A sub-housing (35) rotatably carries the main shaft (36), imbalance forces in the main shaft (36) and their respective directions are monitored for determining the magnitude and angular positions of balance weights required for correcting imbalances in the wheel (2) in selected balancing planes (17 and 18). A telescoping extendible sensor arm (54) is pivotally mounted about a vertical pivot axis on the support housing (30) for detecting balance weight receiving locations on the inner surface (10) of a wheel hub (4) of the wheel (2) at the selected desired balancing planes (17 and 18). Balance weight positions (22) at which correcting balance weights (20) are to be attached to the inner surface (10) of the wheel hub (4) in the respective balancing planes (17 and 18) are indicated by a laser light source (70) which directs a pencil laser beam (72) at the inner surface (10) in the lower front quadrant (23) of the wheel hub (4) when the balance weight position (22) is aligned with the laser light source (70). A laser light dot formed on the inner surface (10) indicates the angular centre line (21) of the balance weight position (22) and an inner side edge (25) of the balance weight position thereby indicating to the operator the precise position at which the correcting balance weight (20) is to be attached to the wheel hub.
Abstract:
Die Genauigkeit der Bestimmung des Winkels zwischen der Unwuchtlage und einer markanten Stelle (20) an einem auszuwuchtenden Bauteil (1) soll verbessert werden. Es ist deshalb vorgesehen, bei einer Stroboskoplampe (4), die in Abhängigkeit eines von einem Schwingungsumformer (2) ermittelten Unwuchtsignals gezündet wird, den Zündzeitpunkt solange in seiner Phase zum Unwuchtsignal zu verändern, bis die markante Stelle (20) stillzustehen scheint. Bei direkter Weiterleitung der Phasenverschiebung an eine Auswerteeinheit (11) ergeben sich eine Bedienungsvereinfachung und eine Verringerung von Fehlermöglichkeiten.
Abstract:
Bei einem Verfahren und einer Vorrichtung zum Stillsetzen eines von einem Antrieb in Drehung versetzten rotierenden Körpers am Ende eines Arbeitszyklus, insbesondere eines in einer Auswuchtmaschine eingelagerten auf Unwucht zu untersuchenden rotierenden Körpers wird zum Anhalten des rotierenden Körpers an einer bestimmten Stelle, an der Bearbeitungswerkzeuge vorgesehen sind, um dessen Oberfläche an einer bestimmten Position zu bearbeiten, die während der Beschleunigungsphase gewonnenen charakteristischen Werte für Antrieb und rotierenden Körper gemeinsam verwendet.
Abstract:
A method of determining a type of corrective weight for application to an edge of a rim of a wheel for correcting imbalance of the wheel, including measuring dimensions of an edge of a rim of a wheel to produce measured dimensions, comparing the measured dimensions to actual dimensions of different types of rim edges, determining a type of rim edge the wheel has based upon the comparison between the measured dimensions and the stored dimensions, and indicating a type of corrective weight appropriate for application to the edge of the rim of the wheel based upon the type of rim edge determined.
Abstract:
The machine determines, by first measurement sensor means (30), the axial position of at least one transverse balancing plane (P1, P2) in which the operator chooses to apply a respective balancing mass, and the radial position of points on the application surface (11a) corresponding with said balancing plane (P1, P2), while the machine monitors the angular position of the body (10); the body (10) is rotated and by suitable means the machine determines the imbalance means together with the data originating from the first and second sensor means, the value of each balancing mass and the position of its point of application on the application surface (11a) being determined. According to the invention, images originating from the application surface (11a) on the body (10) are acquired by an image acquisition means, said images being displayed on a screen (61) accessible to the operator, on the screen there also being indicated the position of application of the balancing mass in relation to the image of the application surface (11a) which appears on it, for application of the balancing masses the body (10) being brought into an angular position such that the point of application of the masses falls within any region of the field visible on the screen (61).
Abstract:
A method and apparatus for balancing a rotor in at least one plane. The geometrical parameters of the rotor are stored along with test values representing the rotor in balance as determined during a test run. These stored values are transmitted to a frame computer which determines the size and phase relationship of counterweights necessary to balance the rotor. The test values resulting from the test run are stored for the entire duration of the balancing operation upstream of the frame computer. Also, the geometrical parameters of the rotor may be recalled and displayed at any time during the operation.
Abstract:
A read-out system and method for a wheel balancing machine employs means for determining the minimum angular displacement between a "balance point" on the wheel and a predetermined reference for a stationary portion of the machine using a first scale of displacement and means for converting the minimum angular displacement from the first scale to a second scale. Using the second scale for indicating the balance point enhances the sensitivity of the display means at the balance point. A method is carried out for indicating alignment between the balance point where weight is to be added to an unbalanced wheel to balance same and a predetermined reference position for the machine.