An apparatus to measure swing mass moments of sports' implements includes an apparatus that receive a handle of a sports' implement and measures rotational angularity thereof using a calibrated counter force element and using a static mode of measurement in association with a scale having a plurality of readings.

An apparatus to measure swing mass moments of sports' implements includes an apparatus that receive a handle of a sports' implement and measures rotational angularity thereof using a calibrated counter force element and using a static mode of measurement in association with a scale having a plurality of readings.

A load transfer function of a uniformity measuring apparatus in a second state, in which a tire to be measured is attached, is obtained using at least either a load transfer function or an acceleration transfer function measured in a step of measuring reference transfer functions and a natural frequency measured in a step of measuring a natural frequency. The obtained load transfer function is used to correct tire uniformity data obtained by performing a certain type of signal processing on a tire uniformity waveform.

A method for balancing a set of blades intended to be arranged on a bare disc of an aircraft engine, the bare disc comprising a defined number of numbered cells (ai) intended to receive the same defined number of blades, which can have a spread of mass, the method comprising the following steps:sorting the blades by monotonic order of their mass (mi) to form an ordered set of blades,separating the ordered set of blades in a balanced manner into four lobes constituted by a first large lobe, by a second large lobe, by a first small lobe and by a second small lobe, the blades being classified into each lobe according to a current placement order, andarranging the four lobes on the bare disc by making the current placement order of the blades correspond to the numbered cells of the bare disc.

A method is described for calibrating a balancing machine, in which a rotor (1) to be corrected is rotatably mounted in bearings (2) and a correction run k is performed, wherein at least one measuring sensor (3) determines an initial vibration of the rotor (1) prior to an imbalance correction and transmits this vibration to an evaluation device (4), which stores the measured value as vibration vector {right arrow over (s)}.sub.0. After an imbalance on the rotor (1) is corrected, a residual vibration of the rotor (1) is measured by measuring sensor (3), transmitted to the evaluation unit (4) and stored as vibration vector {right arrow over (s)}.sub.1. The difference {right arrow over (s)}={right arrow over (s)}.sub.1{right arrow over (s)}.sub.0 formed from the measurement data and the corrected imbalance is stored for compensation run k as {right arrow over (s)}.sub.k and {right arrow over (u)}.sub.k by the evaluation unit (4). To undertake a calibration of the machine, one can either determine a process calibration matrix K by solving the equation system S=UK.sup.T using the collected measurement data or one can select an already available process calibration matrix using the initial vibration {right arrow over (s)}.sub.0 and/or imbalance vector {right arrow over (u)} and store it as a calibration matrix in the evaluation unit (4) and use it to calculate an unknown imbalance vector of a rotor (1).

A method is described for calibrating a balancing machine, in which a rotor (1) to be corrected is rotatably mounted in bearings (2) and a correction run k is performed, wherein at least one measuring sensor (3) determines an initial vibration of the rotor (1) prior to an imbalance correction and transmits this vibration to an evaluation device (4), which stores the measured value as vibration vector {right arrow over (s)}.sub.0. After an imbalance on the rotor (1) is corrected, a residual vibration of the rotor (1) is measured by measuring sensor (3), transmitted to the evaluation unit (4) and stored as vibration vector {right arrow over (s)}.sub.1. The difference {right arrow over (s)}={right arrow over (s)}.sub.1{right arrow over (s)}.sub.0 formed from the measurement data and the corrected imbalance is stored for compensation run k as {right arrow over (s)}.sub.k and {right arrow over (u)}.sub.k by the evaluation unit (4). To undertake a calibration of the machine, one can either determine a process calibration matrix K by solving the equation system S=UK.sup.T using the collected measurement data or one can select an already available process calibration matrix using the initial vibration {right arrow over (s)}.sub.0 and/or imbalance vector {right arrow over (u)} and store it as a calibration matrix in the evaluation unit (4) and use it to calculate an unknown imbalance vector of a rotor (1).

A method for determining stability of a vehicle having a load suspended from the vehicle is provided. The method can include obtaining measurements from a plurality of sensors positioned on the vehicle, obtaining a measurement from a vehicle accelerometer operative to determine an inclination of the vehicle, determining a position of the load suspended from the vehicle, determining a slung load of the load suspended from the vehicle, using the determined slung load and the determined position of the load suspended from the vehicle, determining tipping moments acting on the vehicle, determining righting moments acting on the vehicle and determining a tipping stability based on the determined tipping moments and determined righting moments.

A method for determining stability of a vehicle having a load suspended from the vehicle is provided. The method can include obtaining measurements from a plurality of sensors positioned on the vehicle, obtaining a measurement from a vehicle accelerometer operative to determine an inclination of the vehicle, determining a position of the load suspended from the vehicle, determining a slung load of the load suspended from the vehicle, using the determined slung load and the determined position of the load suspended from the vehicle, determining tipping moments acting on the vehicle, determining righting moments acting on the vehicle and determining a tipping stability based on the determined tipping moments and determined righting moments.

A turbine wheel for a hydrokinetic torque converter. The turbine wheel is rotatable about a rotational axis and comprises a substantially annular turbine shell member coaxial with the rotational axis, and a plurality of turbine blade members axially extending from the turbine shell member. The turbine wheel is a single-piece component such that the turbine blade members are unitarily formed with the turbine shell member. The turbine wheel (22) is made by an additive manufacturing process from a polymeric material.

The present disclosure provides an apparatus to measure swing mass moments of sports implements. The present disclosure further provides an apparatus to measure a center of mass point of sports implements. Some embodiments of the present disclosure further provide a single, compact apparatus configured to measure both a swing mass moment and a center of mass point of a sports implement. The disclosed swing mass measurement apparatus provides a compact mechanical device configured to quickly, accurately measure even small differences of implement swing mass. The disclosed center of mass point measurement apparatus provides a large roller rod adjuster, allowing easy adjustment of tested implements into balance of center mass over rod, then a touch stylus is moved into contact with the tested implements handle, for an accurate location measurement, that is projected onto a double size scale readout for enhanced comprehension.