Abstract:
A testing machine (8) for testing a test specimen (18) includes controllable movable element (15) configured to be coupled to the test specimen(18) and a computing device (9; 23)configured to control controllable movable element (15). Generally,, the computing device (9; 23) including a graphical user interface (47) that has one or more features that provides situational awareness to the user and/or aids in configuring the test machine (8).
Abstract:
Concepts presented herein relate to a portable device (10) that includes a frame (20) and a fixture (22) for engaging a mechanical probe (12) to be calibrated. The fixture (22) can be a platform of hard material that receives pushing action of the mechanical probe (12). A displacement sensor (30) senses position of the platform (22) with respect to the frame (20). An actuator is coupled to the displacement sensor and a controller (32) is coupled to the actuator. The controller (32) operates the actuator to cause the platform (22) to move to a position (as indicated by the displacement sensor (30)), while the force required to cause the displacement is measured with a force sensor.
Abstract:
A transducer body (40' ' ' ' ) includes at least two sensor bodies (181,183). Each sensor body (181,183) has a hub (60) joined to a perimeter body surrounding the hub with flexure structures (64), wherein the hubs are joined together and wherein the flexure structures (64) are configured to respond to loads transferred between the sensor bodies (181,183) along two orthogonal sensed axes. The flexure structures (64) of one of the sensor bodies (181,183) has an operable range greater than the flexure structures (64) of the other sensor body (181, 183).
Abstract:
A dynamic vehicle tester providing integrated testing and simulation for determining characteristics of a unit under test. Changes occurred on the unit under test are dynamically obtained, considered and incorporated in generating test conditions to be applied to the unit under test. In particular, testing of a vehicle suspension system may be accomplished.
Abstract:
A supervisor module for managing vehicle testing is disclosed. The supervisor module includes logic configured to provide a startup and initialization function with respect to testing of a vehicle, logic configured to provide sequence control and event management with respect to testing of the vehicle, logic configured to receive simulation results from a simulator, the simulator configured to simulate operation with respect to the vehicle, logic configured to receive data resulting from actuation of a vehicle component, logic configured to analyze the simulation results and the data resulting from actuation of the vehicle component and generate one or more control signals based on the analysis, and logic configured to forward the one or more control signals to one or more actuators to dynamically actuate the vehicle component.
Abstract:
An orthopedic simulator is provided with a mechanism with a plurality of sub-mechanisms that generate relative motions between the portions of orthopedic devices, such as spinal disc implants. The sub-mechanisms are configured to be nested so as to place the sub-mechanism with the highest required performance closest to the specimen.
Abstract:
A wheel support (10; 210; 310) having a transducer body includes a first support member (72; 270; 372) having a spindle (12; 212; 312) configured to support a wheel assembly for rotation about an axis of the spindle (12; 212; 312) and a second support member (70; 272; 370). A plurality of transducer elements (20A-20D; 220A-220D; 320A-320D) connects the first support member (72; 270; 372) and the second support member (70; 272; 370). One of the first support member and the second support member are configured to be mounted to a vehicle and support the vehicle in part on the spindle (12; 212; 312).
Abstract:
A multiple degree of freedom displacement transducer (50) and body (51) thereof is used to measure linear displacements along and/or rotational or pivotal displacements about up to three orthogonal axes (62, 64, 66). In one embodiment, a displacement transducer body (51) includes a first pivoting assembly (58) and a second pivoting assembly (58). Each pivoting assembly (58) has a support member (72) pivotable relative to another portion (70) about two orthogonal axes (80, 92). A structure (52) joins said another portion (70) of each pivoting assembly (58) together. In another embodiment, a displacement transducer includes a first support member (70), a second support member (72), and a cross flexure assembly (74) joining the first support member (70) to the second support member (72). The cross flexure assembly (74) is arranged to allow the first support member (70) to pivot relative to the second support member (72) about two intersecting orthogonal axes (80, 92). An angular sensing device (77) is arranged to provide an output signal related to angular movement of the first support member (70) relative to the second support member (72) about at least one of the orthogonal axes (80, 92).
Abstract:
A method and system for evaluating and tuning axle systems includes at least one test rig on which one or more physical axle systems are mounted. A full vehicle model and a road description are used with the test rig to test and evaluate or tune the axle system as would be conducted on a real test track. The full vehicle model is modified to remove the characteristics of the axle system under test. The remainder of the full vehicle model produces output signals in the form of displacements or loads that are transmitted as inputs to the test rig to apply those signals. The test rig measures output signals in the form of complementary displacements or loads that will become inputs to the vehicle model in place of the removed model of the axle system under test. In this manner, the physical axle system under test is inserted into a real time model of the full vehicle, road and driver.
Abstract:
A computer aided engineering system (50) includes memory (34, 38) for storing empirical models (54) of physical components defined by inputs and outputs. The system (50) further includes an output device (42) and a processor (32) operably connected to the memory (34, 38) and the output device (42). The processor (32) executes a module (52) having instructions for modeling a physical system from the empirical models (54) of the physical components. The module (52) is adapted to adjust at least one of the inputs, outputs or time scale of one of the models (54) forming the physical system.