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Showing 1 to 20 of 69 for “"Test Stand"”.
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Systems engineering approach to engine test stand development for micropatching evaluations
… engineering methodology to develop an engine test stand used to extract, patch and validate the binary file of a diesel engine electronic control module. Electronic control modules operate modern systems ranging from aircraft and spacecraft to automobiles, heavy trucks and industrial …
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Bond graph model and computer simulation of a hydrostatic drive test stand
A hydrostatic drive test stand was constructed to aid in the instruction of the characteristics of hydrostatic transmissions and to develop a time-varying load in a shaft to compare torque transducers. A mathematical model of the device was derived using the bond graph approach and was implemented …
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Characterization of ion properties in a linear pulsed plasma-material interaction test stand
… Proposed solid divertors will not be able to withstand these fluxes, especially in larger toroidal machines such as ITER and DEMO. In addition to this detrimental effect on solid wall materials, demonstrations have shown that the erosion of these materials can cause impurity generation and …
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Design of a Fan-Based Test Stand for Evaluating Multicopter Handling in Turbulent Flow
… rotorcraft configurations, a turbulent inducing test stand was designed and constructed. The test stand will have two walls of computer fans arranged in an L-shape frame, creating wind gusts that simulate the non-linear turbulent wind experienced by eVTOL. This also aids the Eagle Flight Research …
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Design and Characterization of a Pressure Controller Test Stand for Soft Pneumatic Actuator Testing
… proportional-integralcontrol (PID) control test stand system with only off-the-shelf components, in order to create a tool for standardized and repeatable characterization testing of soft pneumatic actuator life-cycle behavior. The system is open-source and modular, allowing researchers in …
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Design of a re-configurable test stand for a multi degree of freedom compliant robot prototype
A test stand was designed and constructed to compress a compliant robot prototype, while measuring the force applied and the displacement of the prototype's end. The prototype is a five degree of freedom, compliant device, which required the design process to preserve these DOF while measuring the …
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High power X-band RF test stand development and high power testing of the CLIC crab cavity
… and operation of multiple high power X-band RF test facilities for high gradient acceleration and deflecting structures at CERN, as re-quired for the e+ e- collider research programme CLIC (Compact Linear Collider). Signif-icant improvements to the control system and operation of the first test …
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Hybrid Illinois Device for Research and Applications material analysis test-stand development for characterization of fusion plasma-material interactions
… plasmas provide a unique plasma environment to test materials under the harsh conditions they will experience in a fusion device. To realize HIDRA’s potential to advance PFC research, the HIDRA-Material Analysis Test-stand (HIDRA-MAT) was designed and fabricated. HIDRA-MAT is an extension of …
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Experimental Evaluation of the Effect of Inlet Gas Humidification on Fuel Cell Performance
The development and evaluation of a fuel cell test stand incorporating various methods for controlling the temperature and humidity of fuel cell reactants is described. The test stand is capable of accurately metering gas flows, controlling the temperature and humidity of the gases, and delivering …
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Mechanical Properties of Candidate Materials for Morphing Wings
… in the commercial market. The materials tested were a type of thermoplastic polyurethanes, copolyester elastomer, shape memory polymer, or woven materials that are made out of elastane yarns. The first study determined the required forces to strain the material in a uniaxial direction. A …
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An Investigation of Wear-Resistant Coatings on an A390 Die-Cast Aluminum Substrate
In this investigation, four coatings were tested for their ability to increase the wear life of A390 aluminum primary clutch sheaves used in continuously variable transmission (CVT). The coatings tested were: hard chrome, electroless nickel metal, hard coat anodizing and composite ceramic coating. …
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Experimental studies of novel accelerator structures at 11 GHz and 17 GHz
… experimental results on PBG structure breakdown testing at high power at both 11 and 17 GHz. A single-cell photonic band-gap (PBG) structure was designed with an inner row of elliptical rods (PBG-E) to reduce ohmic heating relative to a round-rod structure. The PBG-E structure was built and …
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Assessment of the Repeatability and Sensitivity of the Thermoelectric Perfusion Probe
… was validated and calibrated on a phantom tissue test stand, a system that simulates perfusion with known, controlled flow. With the new pressed sensor technology, a thermocouple sealed to a heat flux gage, the sensor temperature and the heat flux are simultaneously recorded. The pressed sensor …
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Design and construction of high-temperature, high-vacuum tensile tester for fusion reactor materials
… strength. In order to facilitate a better understanding of the effect of radiation on fusion material properties at high temperatures, a novel high-vacuum (<106 torr), high-temperature (<1000°C), tensile testing stand for irradiated specimens was designed and constructed. The test stand was …
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Testing and modeling of compressors for low-lift cooling applications
… variable speed scroll compressor is tested on a de-superheater test stand to determine its performance in areas of low-lift and low compressor speed. The goal is to adapt this test stand so that it could be used to test a reciprocating compressor in this region. A control program is …
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Convection Calibration of Schmidt-Boelter Heat Flux Gages in Shear and Stagnation Air Flow
… facility has been designed, including a shear test stand, a stagnation test stand, an air heater and a data acquisition system. The current physical model for a combined radiation and convection heat transfer environment uses an additional thermal resistance around the heat flux gage. This …
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Acoustic Emission Signal Classification for Gearbox Failure Detection
… emission (AE) data obtained from a ground test stand of a rotating H-60 helicopter tail gearbox by using mathematical algorithms and visual inspection. Signs of fatigue crack growth were observed from the AE signals acquired from the result of the optimal number of clusters in a data set. …
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Development, testing, and validation of a heat transfer model for bi-propellant liquid rocket engines
… to CFD simulations as well as data obtained from testing. Strong correlations can be drawn with variations a low at 1\% between the CFD and analytical models. Three separate engines were analyzed to gauge the effectiveness of the analytical model across various engine and cooling configurations. A …
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Power Cycling with Switching Losses
… switching losses in a classical power cycling test, as it is often used for power semiconductors.The fundamentals of testing, switching behavior, thermal and electrical characteristics of semiconductors are covered.The core of the work is the construction, start-up and solution of technical …
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Modular Lorentz force actuators for efficient biomimetic propulsion of Autonomous Underwater Vehicles
… set of prototype actuators was manufactured and tested to evaluate the feasibility of the design. A test stand was constructed to evaluate both the static and dynamic performance of the actuators. The prototype actuators achieved the required motion and demonstrated modest performance at a …
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