A control device of a dynamometer system includes a mechanical loss arithmetic unit that generates a loss compensation signal corresponding to loss torque generated in a dynamometer body in a state where a load is connected, on the basis of an angular velocity detection signal, a characteristic vibration suppression control circuit that generates a compensation signal in order to suppress a characteristic vibration of a swinging element, and a torque current command signal generating unit that generates a torque current command signal by subtracting the compensation signal from an upper level torque command signal. The characteristic vibration suppression control circuit is provided with a normative model arithmetic unit, deviation compensator, model input generating unit, and differential compensator that generates a correction signal by subjecting a torque signal obtained by the normative model arithmetic unit to a differential operation.

A method for directly determining a theoretical damage of at least one component of a device includes providing load-specific reference data in an evaluation unit, sensing actual load-specific data by a load sensing system, and transmitting the actual, load-specific data to the evaluation unit. The actual load-specific data includes classified load collectives comprising a dwell time of occurring damage variables at defined load levels, a number of load changes of occurring damage variables, and an event count of occurring damage variables. The method further includes scaling the load-specific reference data to the actual load-specific data for calculating the theoretical damage of the at least one component and determining a remaining service life.

A method for directly determining a theoretical damage of at least one component of a device includes providing load-specific reference data in an evaluation unit, sensing actual load-specific data by a load sensing system, and transmitting the actual, load-specific data to the evaluation unit. The actual load-specific data includes classified load collectives comprising a dwell time of occurring damage variables at defined load levels, a number of load changes of occurring damage variables, and an event count of occurring damage variables. The method further includes scaling the load-specific reference data to the actual load-specific data for calculating the theoretical damage of the at least one component and determining a remaining service life.

A method for directly determining a theoretical damage of at least one component of a device includes providing load-specific reference data in an evaluation unit, sensing actual load-specific data by a load sensing system, and transmitting the actual, load-specific data to the evaluation unit. The actual load-specific data includes classified load collectives comprising a dwell time of occurring damage variables at defined load levels, a number of load changes of occurring damage variables, and an event count of occurring damage variables. The method further includes scaling the load-specific reference data to the actual load-specific data for calculating the theoretical damage of the at least one component and determining a remaining service life.

The disclosure provides a driving force applied position estimation system that can accurately estimate an applied position of a driving force from an occupant. A measurement system includes a six-axis force sensor provided in a wheelchair, a rotation angle recognition part which recognizes a rotation angle of the six-axis force sensor, and a COP estimation part which estimates a COP that is the applied position of the driving force from the occupant to the wheelchair. The COP estimation part estimates the COP based on a translational force and a moment detected by the six-axis force sensor and based on the rotation angle recognized by the rotation angle recognition part.

A method for manufacturing a gear includes providing teeth which are shaped according to an epicyclic construction; wherein: locations on a respective tooth surface of each tooth are each determined by a radial distance from an axis as a function of a cycle angle; the radial distance is in turn determined by an equidistant to a gear trajectory; locations on the gear trajectory are respectively determined by the vector sum of a cycle vector and an epicycle vector; a tail of the cycle vector lies on the axis and a tail of the epicyclic vector lies in the tip of the cycle vector; an epicycle angle of the epicycle vector is n times as large as that cycle angle and a length of the cycle angle is greater than a length of the epicycle angle; and n is a number of the round engagement portions of the harmonic pin ring transmission which is at least three.

A method for manufacturing a gear includes providing teeth which are shaped according to an epicyclic construction; wherein: locations on a respective tooth surface of each tooth are each determined by a radial distance from an axis as a function of a cycle angle; the radial distance is in turn determined by an equidistant to a gear trajectory; locations on the gear trajectory are respectively determined by the vector sum of a cycle vector and an epicycle vector; a tail of the cycle vector lies on the axis and a tail of the epicyclic vector lies in the tip of the cycle vector; an epicycle angle of the epicycle vector is n times as large as that cycle angle and a length of the cycle angle is greater than a length of the epicycle angle; and n is a number of the round engagement portions of the harmonic pin ring transmission which is at least three.

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.

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.

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.