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Journal Article

Objective Evaluation of Interior Sound Quality in Passenger Cars Using Artificial Neural Networks

2013-04-08
2013-01-1704
The comparison results show that the realized artificial intelligence model is an appropriate model to estimate the sound quality of the automotive interior noise. ...In this research, the interior noise of a passenger car was measured, and the sound quality metrics including sound pressure level, loudness, sharpness, and roughness were calculated. An artificial neural network was designed to successfully apply on automotive interior noise as well as numerous different fields of technology which aim to overcome difficulties of experimentations and save cost, time and workforce. ...Sound pressure level, loudness, sharpness, and roughness were estimated by using the artificial neural network designed by using the experiment values. The predicted values and experiment results are compared.
Technical Paper

Monitoring and Control for Artificial Climate Design

2002-07-15
2002-01-2286
The monitoring and control of an artificial climate is necessitated by the Mars Dome Project (MDP) [ref 1]. MDP is designed to grow plants in an enclosed structure under reduced pressure.
Journal Article

On-Board Fuel Identification using Artificial Neural Networks

2014-04-01
2014-01-1345
The purpose of the current work is to overcome these limitations and to present how Artificial Neural Networks expand the capability of utilizing engine speed signal for fuel identification by using main combustion characteristics such as firing peak cylinder pressure and peak pressure rise rate.
Technical Paper

Development of Artificial Ash Accelerated Accumulation Test Method

2010-10-25
2010-01-2171
The test periods require a couple of months because the accelerations of those test methods were restricted by consumption rate of lubricant oil. An artificial ash accelerated accumulation (AAAA) test was attempted for drastic shortening of the test periods.
Technical Paper

Application of Artificial Neural Network to Optimize the Evacuation Time in an Automotive Vacuum Pump

2013-11-27
2013-01-2864
This paper presents the details of the study to optimize and arrive at a design base for a vacuum pump in an automotive engine using resilient back propagation algorithm for Artificial Neural Networking (ANN). The reason for using neural networks is to capture the accuracy of experimental data while saving computational time, so that system simulations can be performed within a reasonable time frame.
Technical Paper

A Hypothetical Tyre Size to improve Tyre Flotation on Sandy Soil Using Artificial Neural Networks Technique

2007-08-05
2007-01-3643
A second aim is to predict the tyre flotation pressure on dry sandy soil by using Artificial Neural Networks (ANNs) Technique. A third aim is to predict a new tyre size that improves flotation on dry sand by using Artificial Neural Networks (ANNs) Technique. ...A third aim is to predict a new tyre size that improves flotation on dry sand by using Artificial Neural Networks (ANNs) Technique. Experimental investigation has been carried out on three tubeless tyre of sizes (225/75R15, 235/70R15 and 255/60R15) inflated each with four inflation pressures (50, 100, 150 and 200 kPa) on three dry sand with three densities (Loose, Medium, and High). ...The investigation aimed at determines the tyre deflection-load, sinkage-load relationships were measured and the tyre flotation pressure. The artificial neural network (in MATLAB program) simulating the tyre deflection and sinkage on dry sand was used for all tyre and soil parameters.
Technical Paper

Towards On-Line Prediction of the In-Cylinder Pressure in Diesel Engines from Engine Vibration Using Artificial Neural Networks

2013-09-08
2013-24-0137
This study aims at building efficient and robust artificial neural networks (ANN) able to reconstruct the in-cylinder pressure of Diesel engines and to identify engine conditions starting from the signal of a low-cost accelerometer placed on the engine block. ...In this view, the artificial neural network is meant to be efficient in terms of response time, i.e. fast enough for on-line use.
Technical Paper

DISCUSSION OF SOME DESIGN PROBLEMS ASSOCIATED WITH ARTIFICIAL FEEL SYSTEMS OF AIRPLANES WITH IRREVERSIBLE POWERED FLIGHT CONTROLS

1960-01-01
600260
Stick forces per airplane normal acceleration in steady-state maneuvering flight were tailored to meet the requirements of the military specification by incorporating a Q-bellows bleed air subsystem into the artificial feel system. In the stick free dynamic analysis, residual oscillations of airplane normal acceleration following a step stick force input and control forces in sudden pull-ups have been studied for various feel systems.
Technical Paper

Evaluation of Electro-acoustic Techniques for In-Situ Measurement of Acoustic Absorption Coefficient of Grass and Artificial Turf Surfaces

2007-05-15
2007-01-2225
This paper evaluates the measurement techniques of these two in-situ methods and provides results of acoustic absorption coefficient of a commercial artificial Astroturf, a Dow quash material, and a grass surface. The single channel microphone method uses impulse response calculations from a Maximum Length Sequence (MLS) signal excitation of an electro-acoustic loudspeaker and a Fast Hadamard Transformation (FHT) based cross-correlation algorithm by the de-convolution of recorded single channel microphone signal and the input MLS signal.
Technical Paper

Analysis of the Effect of In-cylinder Parameters on NOX and HC Emissions of a CI Engine Using Artificial Neural Networks

2006-10-16
2006-01-3313
Analysis and prediction of NOX and HC emissions for CI engines based on combustion parameters would enable better engine design and fuel selection leading to lesser emissions. It is possible that NOX emissions, which are controlled by combustion temperature, could be predicted from in-cylinder parameters that include data form pressure and heat release patterns. A similar attempt could be performed for HC emissions also. This paper hereby attempts to correlate NOX and HC emissions of a CI engine with in-cylinder parameters and also hopes to evaluate the relative impacts of each of these parameters on NOX and HC emissions.
Technical Paper

Math-Based Design of Sensing Bladders

2006-04-03
2006-01-0154
Further, an artificial intelligence search engine has been applied to this problem to achieve near-optimal performance given the constraints of the seat design.
Technical Paper

A New Measurement Method for Quantifying the Ride Comfort

2002-03-04
2002-01-1236
I invented a new measurement method for quantifying the ride comfort using the artificial human model that includes artificial human lumbar model, and I took the pressure variation at the artificial nucleus pulposus, did experiments about the pressure variation curves on highway bridge joints at various speeds. ...I invented a new measurement method for quantifying the ride comfort using the artificial human model that includes artificial human lumbar model, and I took the pressure variation at the artificial nucleus pulposus, did experiments about the pressure variation curves on highway bridge joints at various speeds.
Technical Paper

Improvement of Sound Quality of Exterior Idling Noise of Small Diesel Truck

1995-05-01
951289
Artificial exterior diesel idling noise and its variations with varying its parameters such as frequency spectrum and time wave form were made using the generation techniques developed in the author's laboratory. ...The subjective evaluations on unpleasantness of the artificial idling noise and its variations were conducted through the paired comparison technique.
Technical Paper

A Method and Apparatus for Generating Full Vehicle Roof System Rain Noise for the Purpose of Development, Benchmarking and Interior Noise Performance Measurement

2001-04-30
2001-01-1490
After nine years of work and five design iterations, a test method and apparatus has been developed that exposes a vehicle to a repeatable and measurable artificial rain excitation. The test apparatus, method and performance data are reviewed. Performance data is shown for several different vehicles and roof systems.
Technical Paper

The Effect of Turbulence on the Hydrocarbon Emissions from Combustion in a Constant Volume Reactor

1984-02-01
840366
A cylindrical combustion bomb with dynamic charging system and electro-hydraulic sampling valve is used to study the effects of turbulence on hydrocarbon (HC) emissions from a quench layer and from artificial crevices. The turbulence level is varied by changing the delay time between induction of combustible charge and ignition. ...Upper limit estimates of the residual wall layer HC concentration show that residual quench layer hydrocarbons are only a small fraction of the exhaust HC emission. Artificial crevice experiments show that the exhaust HC emission is directly proportional to crevice volume and that the initial equivalence ratio strongly influences the species distribution in the exhaust.
Technical Paper

Methods of Processing Cylinder-Pressure Transducer Signals to Maximize Data Accuracy

1990-02-01
900170
Transducer drift driven by the combustion event, often referred to as thermal shock, enhances measured cyclic variability by exaggerating the effects of actual cyclic variations in combustion temperature. Any artificial variability that persists until the portion of the cycle used for pegging offsets all of the referenced measurements of that cycle by the magnitude of the variability. ...It is preferable to peg when artificial variability is minimized, which occurs when the transducer output is least affected by the thermally transient nature of the engine cycle.
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