The present invention includes a load frame test device using a plurality of levers about a common pivot point for applying combinations of tensile loading and bending on test articles at magnitudes seen in offshore applications.

The invention relates to a fastening assembly (3) for fastening a test device holder (5) to a force measuring apparatus (1), having a test device holder (5) and a slide part (7) which can be or is arranged on a force measurement tower (9) of the force measuring apparatus (1) in such a way that the slide part can move in the vertical direction of the force measurement tower (9). The test device holder (5) has at least one position defining element (11), and the slide part (7) has at least one counter position defining element (13). The position defining element (11) and the counter position defining element (13) are designed to fix the position of the test device holder (5) relative to the slide part (7) in at least one direction, selected from the vertical direction of the force measurement tower (9) and a direction perpendicular to the vertical direction, and at the same time to allow rotation of the test device holder (5) relative to the slide part (7) about an axis of rotation (D) defined by the position defining element (11) and/or the counter position defining element (13). The test device holder (5) has a first angle adjustment device (15) and the slide part (7) has a second angle adjustment device (17), which are designed to adjust and preferably to fix the angle of the test device holder (5) relative to the slide part (7) about the axis of rotation (D). The test device holder (5) has at least one fixing element (19) and the slide part (7) has at least one counter fixing element (21). The fixing element (19) and the counter fixing element (21) are designed to fix the test device holder (5) on the slide part (7).

The invention relates to a fastening arrangement (3) for fastening a sample holder (7) to a force measuring device (1), having a sample holder (7), and a counterpart holder (5) on the side of the force measuring device, which is formed or arranged on the force measuring device (1) or is fixedly connectable to the force measuring device (1), wherein the counterpart holder (5) has at least one sample holder receptacle (19, 21), wherein the sample holder (7) has a planar abutment surface (39) and the sample holder receptacle (19, 21) has a flat counterpart abutment surface (23), wherein the sample holder (7) furthermore has at least one positioning element (41, 43) and one fixing element (45), and the sample holder receptacle (19, 21) has at least one counterpart positioning element (25, 27) and one counterpart fixing element (29), wherein the positioning element (41, 43) and the counterpart positioning element (25, 27) are configured to uniquely define a relative position between the sample holder (7) and the counterpart holder (5) together with the abutment surface (39) and the counterpart abutment surface (23), and wherein the fixing element (45) and the counterpart fixing element (29) are configured to hold the sample holder (5) and the counterpart holder (5) against one another and to force the abutment surface (39) and the counterpart abutment surface (23) against one another.

The disclosure relates to a dual-criterion diagram for designing and assessing the life and strength of high-temperature rotating components and its establishment. In addition, the disclosure relates to a method for designing and assessing the life and strength of high-temperature rotating components based on the dual-criterion diagram for designing and assessing the life and strength of high-temperature rotating components. The advantages of the disclosure include a simple design and assessment process, high operability, and reliable assessment results. The invention is expected to be applied finally to assessment and evaluation of high-cycle fatigue life of rotating components at high temperatures.

A linear electrical machine (LEM) comprising: at least onestator mounted in a housing, the housing and stator defining a working cylinder; a two-section central core within the working cylinder, wherein the two sections of the core are co-axial, separate and cantilever mounted within the working cylinder; a cylindrical stator bore cavity between the working cylinder and the two central core sections; and one or more hollow translators, each translator being axially movable within the stator bore cavity, such that each section of the central core is traversed by part of the one or more translators, thereby forming an exterior magnetic circuit airgap between the respective translator and stator.

A measurement apparatus measures an electronic device that vibrates a touch surface to present a tactile sensation. The measurement apparatus includes a vibration detector that detects vibration of a touch surface, the vibration being produced in response to pressure applied to the touch surface, and a pressure detector that detects the pressure applied to the touch surface.

A shaft torque control device includes a feedback control system having: a generalized plant P including a nominal plant model N representing the input/output characteristic of a test system including a tandem dynamometer system; and a controller K for applying a first and second control inputs u1, u2 to the generalized plant P on the basis of a first observed output y1 and second observed output y2. The controller K has been designed using a computer so as to satisfy a prescribed design condition. For the generalized plant P, defined are: a first control amount output z1 resulting from weighting the first observed output y1 using a weighting function Ge(s); a second control amount output z2 resulting from weighting a front transmission torque t1 using a weighting function Gt1(s); and a third control amount output z3 resulting from weighting a rear transmission torque t2 using a weighting function Gt2(s).

Provided is an estimation model generation device configured to generate an estimation model for estimating a lifetime of a tool based on a load curve indicating a temporal change or a positional change of the load applied to the tool, the tool being used for repeatedly machining a plurality of workpieces in a plate-shape while applying the load to each of the plurality of workpieces, the estimation model generation device including: an information acquisition unit that acquires the load curve at a timing before the tool reaches a lifetime due to repeated machining using the tool; an estimation model generation unit that generates, based on the load curve and a tool lifetime, an estimation model for the lifetime of the tool, the tool lifetime being a time period from time of acquiring the load curve to time at which the tool reaches the lifetime; and a storage unit.

Braking device inserted in a test bench (2) for checking the correct operation of industrial screwdrivers, wherein the braking simulates a tightening operation of such screwdriver, comprising a container body (1) on the top of which a coupling (11) protrudes, suitable for coupling with the head (3) of the screwdriver to be tested, said coupling (11) being connected, by means of a shaft (12), to a braking unit (13), an electronic torque and angle detector (14) of the shaft rotation (12). Such braking unit (13) comprises a plate (14), rotated by the screwdriver, which is braked by suitable friction surfaces (15) moved towards the plate by the movement of an actuator; the movement of such actuator is performed by means of at least one electronically controlled piezoelectric element (17).

A shaft torque control device includes a feedback control system having: a generalized plant P including a nominal plant model N representing the input/output characteristic of a test system including a tandem dynamometer system; and a controller K for applying a first and second control inputs u1, u2 to the generalized plant P on the basis of a first observed output y1 and second observed output y2. The controller K has been designed using a computer so as to satisfy a prescribed design condition. For the generalized plant P, defined are: a first control amount output z1 resulting from weighting the first observed output y1 using a weighting function Ge(s); a second control amount output z2 resulting from weighting a front transmission torque t1 using a weighting function Gt1(s); and a third control amount output z3 resulting from weighting a rear transmission torque t2 using a weighting function Gt2(s).