A testing rig has a fixed supporting structure, a motor device controlled to drive a shaft portion about a rotation axis, and a misalignment applying unit for applying a parallel offset to a portion of a transmission element that, in use, is under test. The misalignment applying unit is provided with a connecting member, designed to be fastened to the portion of the transmission element in a coaxial position along an axis, and with an eccentric bushing which is connected to the connecting member by an inner bearing in a rotational manner about such axis. The bushing is connected to the fixed supporting structure by an outer bearing in a rotational manner about a further axis which is parallel and eccentric. An actuator device is controlled to rotate the bushing with respect to the fixed supporting structure.

A testing rig has a fixed supporting structure, a motor device controlled to drive a shaft portion about a rotation axis, and a misalignment applying unit for applying a parallel offset to a portion of a transmission element that, in use, is under test. The misalignment applying unit is provided with a connecting member, designed to be fastened to the portion of the transmission element in a coaxial position along an axis, and with an eccentric bushing which is connected to the connecting member by an inner bearing in a rotational manner about such axis. The bushing is connected to the fixed supporting structure by an outer bearing in a rotational manner about a further axis which is parallel and eccentric. An actuator device is controlled to rotate the bushing with respect to the fixed supporting structure.

A flexible drive shaft test arrangement includes a drive end piece arranged along a rotation axis, a driven end piece axially offset from the drive end piece along the rotation axis, and a shell. The shell connects the drive end piece to the driven end piece. The drive end piece end is offset in rotation about the driven end piece to internally load a flexible drive shaft disposed within the shell with torsion. Test stands and methods for testing flexible drive shafts are also disclosed.

Provided is a deployment test apparatus including a fixing frame configured to fix a first portion of a target object in which the first portion is hingedly coupled to a second portion, a rotation axis module including a rotary shaft and disposed on one side of the fixing frame, a rotary arm radially extending from the rotary shaft in an upper portion of the fixing frame, and a support module connected to the rotary arm to clamp the second portion of the target object to be floated, wherein when deploying the target object, the deployment test apparatus is configured to reduce an external force applied to the target object.

The invention relates to an adjustable test object holder (1) for a drive-train test bench (100), wherein the test object holder (1) comprises a first surface (5) and a second surface (3) parallel to the first surface (5), wherein the test object holder (1) can be arranged on a subsurface via the first surface (5), wherein a test object can be arranged on the second surface (3), and wherein the test object holder (1) is designed in such manner that relative to the first surface (2) the second surface (3) can be displaced along a longitudinal axis (X), a vertical axis (Z) and a transverse axis (Y). The test object holder (1) according to the invention is further designed in such manner that relative to the first surface (5) the second surface (3) can be tilted at least about the vertical axis (Z) and the transverse axis (Y). The invention also relates to a corresponding drive-train test bench (100).

The invention relates to an adjustable test object holder (1) for a drive-train test bench (100), wherein the test object holder (1) comprises a first surface (5) and a second surface (3) parallel to the first surface (5), wherein the test object holder (1) can be arranged on a subsurface via the first surface (5), wherein a test object can be arranged on the second surface (3), and wherein the test object holder (1) is designed in such manner that relative to the first surface (2) the second surface (3) can be displaced along a longitudinal axis (X), a vertical axis (Z) and a transverse axis (Y). The test object holder (1) according to the invention is further designed in such manner that relative to the first surface (5) the second surface (3) can be tilted at least about the vertical axis (Z) and the transverse axis (Y). The invention also relates to a corresponding drive-train test bench (100).

A device and method for measuring dimensional variation of a part, particularly total runout, is provided. The device includes an indicator check body, a clamping device within the indicator check body and an end cap that engages the indicator check body and the clamping device. When the indicator check body and the clamping device are engaged, the device is secured to the part allowing dimensional variations to be measured along the surface of the indicator check body.

Provided is an apparatus capable of transporting a rotor from a first location to a second location, including: a holding device for engaging with a portion of the rotor at the first location so as to hold the rotor relative to the apparatus; a position determination device for determining the position of at least one component part of the rotor relative to another component part of the rotor or another body; a positioning device for positioning or repositioning said at least one component part of the rotor relative to another component part of the rotor or another body; and a movement device for moving the rotor from the first location to the second location. Also described is a method of loading a rotor into a balancing machine.

The invention relates to a method for adjusting a piezoelectric torque sensor of a measuring apparatus, which can be part of a test bench, for determining a torque applied to a test piece due to a force flux, wherein the measuring apparatus comprises a piezoelectric torque sensor and a second torque sensor based on a different measuring principle which is designed to continuously detect static torques, wherein the measuring apparatus is configured such that both torque sensors measure torques in the force flux, whereby a target measurement signal of the piezoelectric torque sensor is determined on the basis of a torque measurement by the second torque sensor, and whereby the detected measurement signal of the piezoelectric torque sensor is adjusted and output on the basis of the determined target measurement signal.

The invention relates to a method for adjusting a piezoelectric torque sensor of a measuring apparatus, which can be part of a test bench, for determining a torque applied to a test piece due to a force flux, wherein the measuring apparatus comprises a piezoelectric torque sensor and a second torque sensor based on a different measuring principle which is designed to continuously detect static torques, wherein the measuring apparatus is configured such that both torque sensors measure torques in the force flux, whereby a target measurement signal of the piezoelectric torque sensor is determined on the basis of a torque measurement by the second torque sensor, and whereby the detected measurement signal of the piezoelectric torque sensor is adjusted and output on the basis of the determined target measurement signal.