Fully automatic true triaxial tunnel and underground project model test system, including a triaxial loading device for loading model test piece, automatic data collection and analysis device, power system and control system; triaxial loading device includes test bench, vertical loading system, horizontal front and back, and left and right loading systems, and the vertical, horizontal front and back, and left and right loading systems apply three-way pressure to model test body; test bench functions for supporting, fixing, and providing counter-force; automatic data collection and analysis device includes micro optical fiber sensor embedded in model test piece, optical fiber monitoring system, micro pressure box and strain brick, and can collect multi-field information.

A prosthetic limb test fixture is configured to mimic a human stride. An electronic management system can control the test fixture to follow the position and pattern of a particular selected gait cycle during testing. A proposed prosthesis can be attached to the test fixture. Sensor data collected during testing can be evaluated to determine whether the proposed prosthesis is likely to appropriately fit an amputee patient. Iterative adjustments may be made to the prosthesis based on test data in order to maximize the likelihood of a good fit.

An accelerated loading road-testing system includes a plurality of loading mechanisms. The plurality of loading mechanisms are sequentially arranged along a first direction. The loading mechanism includes a supporting frame, a sliding assembly, and a loading assembly. The supporting frame includes a horizontal supporting beam disposed along a second direction. The horizontal supporting beam has a sliding state in which the horizontal supporting beam slides along a third direction, and a static state in which the horizontal supporting beam is static. The sliding assembly is slidable on the horizontal supporting beam along the second direction. The loading assembly includes a telescopic cylinder and a loading head. A first end of the telescopic cylinder is hinged to the sliding assembly, the second end of the telescopic cylinder is securely connected to the loading head, the telescopic cylinder is configured to always drive the loading head to move along the third direction.

Rotating machinery is evaluated by calculating a boundary condition based on a measured value of a parameter related to an operating state of the rotating machinery, and calculating an evaluation value corresponding to the calculated boundary condition based on the reduced order model, during operation of the rotating machinery. The reduced order model is created based on a prediction model including a heat transfer model and a structural model of the rotating machinery for predicting an evaluation value of the rotating machinery corresponding to the boundary condition.

A method for testing the wear of tires running on a rolling road comprises the following steps: using the construction data of the vehicle and a dynamic equilibrium model, determining the relationship between the speed and the accelerations at the centre of gravity of the vehicle, and the angles and directional forces applied on a given axle; continuously recording the speed and the accelerations of a vehicle travelling on a predetermined route; and disposing the two tires belonging to a same axle on the rolling road and, depending on the recorded speed and acceleration values, the values of the angle of camber, load and longitudinal forces are applied, at all times, on each of the wheels of the axle. The values of the transverse forces undergone by each of the wheels are measured and the drift angle is varied so that the sum of the transverse forces resulting from the drifting of the tires is equal, at all times, to the transverse force applied to the centre of the axle and so that the difference in drift between the two wheels respects the variation in alignment imposed on the axle.

A bench for mechanically characterising a battery cell by applying a compressive force includes a frame carrying a bottom compression assembly and a top compression assembly, means for applying a compressive force to the cell between the compression assemblies, and a force sensor. Each compression assembly includes a compression part and a mounting surrounding the compression part. The compression part and the mounting are at least partly mechanically dissociated. The mounting of the top compression assembly carries movement sensors that measure the movement between the two mountings.

Aspects herein are directed to a support garment testing system comprising a torso form having a motion tracking sensor associated with one or more breast structures of the torso form. A support garment is secured to the torso form, and the torso form is mounted on a motion platform that, when actuated, causes displacement of the breast structures. The amount of displacement is measured by the sensor, and the data is used to assign a level of support provided by the support garment.

An adapted elastomer compound, in which the adaptation is based at least in part on load performance data of a rotor/stator test coupon as evaluated on a test apparatus. The test coupon's stator section includes the original elastomer compound before adaptation thereof. The test apparatus includes a motor, a brake, and at least one sensor disposed to evaluate load performance data of the test coupon. The load performance data is the product of the process comprising the steps of: (a) rotating either the rotor section or the stator section on the test apparatus, wherein such rotation section actuates corresponding rotation of the other of the rotor section and the stator section; (b) applying a braking torque to the actuated rotor section or stator section; and (c) responsive to step (b), evaluating load performance data of the test coupon.

A winch testing device for testing the winch pulling capacity and brake holding capacity of a forestry winch of forestry equipment, in particular of a mobile forestry machine or an accessory rear shield, wherein the forestry winch has a rope drum that can be driven by a drive motor and braked by means of a brake device and on which a rope is spooled. The winch test device has a hydraulic test cylinder which has a first attachment interface, with which the hydraulic test cylinder can be fastened to an attachment point of the forestry equipment, and a second attachment interface with which the hydraulic test cylinder can be connected with the rope of the forestry winch.

An estimation method includes: an acquisition step (S101) of acquiring deflection stress information that indicates a relationship between a deflection and a tensile stress of a specimen (200) of a reinforced concrete structure; and a derivation step (S102) of deriving an estimation formula for estimating a depth of a crack generated in the reinforced concrete structure when a deflection of the reinforced concrete structure is no less than a first deflection of the specimen at a start of a generation of the crack, and is no greater than a second deflection of the specimen at an end of the generation of the crack.