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Technical Paper

The Current Status of Electric and Electronic Auto Parts Industry in Korea

1983-11-07
830927
This paper deals with the current status of electric and electronic auto parts industry in Korea. In describing the situation we have devided parts industry characteristics into four phases such that Semi-Knock-Down Phase, Complete-Knock-Down Phase, Domestic manufacturing phase and Modern Production phase. And also we give some particular tendency in auto parts industry as well as government efforts in Korea. Finally we give current statistics about electric auto parts productions in Korea.
Technical Paper

The Current Status of the Flight Test of the ASKA

1988-10-01
881433
The four engined Upper Surface Blowing (USB) STOL research aircraft ASKA was developed by National Aerospace Laboratory of Japan and has been in the flight test phase to provide various kinds of flight data. The position error in airspeed and angle of attack is discussed, and the low speed performance demonstrated in the flight test is provided by the figures of lift/drag coefficient curves and V-Gamma plot. Several indications of powered lift and dynamic stability derivatives obtained from the V-Gamma plot are discussed. The flight measured pitching moment shows the distinctive features such as pitch up tendency. The wing-body pitching moment and the downwash angle are analyzed from the flight load measurments of the horizontal tail. The ground effect of the ASKA is also presented quantitatively in this paper.
Technical Paper

The Current and Future Basis for Aircraft Air Pollution Control

1971-02-01
710339
The present regulatory tool for assessment of aircraft smoke emission, the Ringelmann Chart, is described; some of the shortcomings associated with its use for aircraft are discussed; research and development efforts to improve on this system are described. The gaseous pollutants, their relative importance in an airport area and research underway or needed is also discussed.
Technical Paper

The Curtiss-Wright Rotating Combustion Engines Today

1964-01-01
640793
The paper discusses progress of the Curtiss-Wright Rotating Combustion (RC) Engine series. Results, since 1958, include: over 20,000 test hours, dynamometer evaluation of one to four rotor engines covering a displacement range of 445/1, achievement of over 150 hp and 160 bmep from the basic 60 cu in. size, successful operation with JP-4 fuel, air cooling at high performance levels, elimination of oil from the fuel, completion of 1500 hr cyclic endurance test, and evaluation of a two-rotor vehicular engine. History, data, and background are presented. Engine size, weight, simplicity, and output smoothness are shown to be superior to reciprocating engines. It is concluded that the liquid cooled, gasoline fueled RC engine is ready for application; the potential of advanced versions is also discussed.
Technical Paper

The Cushion Hitch Tractor-Scraper — From Concept to Market

1968-04-09
680248
The Cushion Hitch is a unique application of vibration absorber theory to a self-propelled tractor-scraper. The scraper mass is utilized as a damper for suppressing predominate bouncing motions of the tractor unit. A more comfortable and safer operator ride, with increased productivity, results from the Cushion Hitch application. This paper describes development of the early prototype design as well as the final production version. Particular emphasis is given to both the hydraulic and the structural characteristics of the system.
Technical Paper

The Cyclic Strain Life Physical Test Correlation Using CAE

2016-04-05
2016-01-1369
Fatigue life predictions using the strain-life method are used in the design of modern light weight vehicle, for the complex loading that occur with the structural durability tests that these vehicles undergo. The accuracy of these predictions is dependent upon the many factors; geometry, loads & materials etc. This paper details a new procedure to ensure the quality and accuracy of the material parameters for the fatigue life prediction software. The material parameters for the solver are obtained by performing strain-controlled fatigue tests. The geometry of the coupons tested is determined by size and thickness of the material specimen that they are machined from and the loading regime in the test. Detailed data analyzed is conducted on these tests and the parameters that are used as input into the CAE strain-life fatigue prediction software are generated.
Technical Paper

The Cyclo-Crane - A Hybrid Aircraft Concept

1983-10-03
831524
AeroLift represents one of the very few organizations devoted to the design, development, and construction of a hybrid aircraft. The proposed Cyclo-Crane is a hybrid aircraft that utilizes aerostatic lift combined with aerodynamic lift and thrust. The Cyclo-Crane will offer heavy lift services, analogous to helicopter operations at a cost projected to be on the order of 25% of helicopters. The Cyclo-Crane concept is valid up to 75 tons of slingload capability with the initial models targeted at the two and 16-ton slingload range.
Technical Paper

The Cylinder Head Temperature Measurement by Thermal Imaging Technique

1991-10-01
912404
A thermal imaging system has been developed for viewing and recording the cylinder head surface temperatures of an internal combustion engine. The system consists of an I.R scanner, associated calibration and image processing equipment and an infra-red transmitting window mounted in the piston. The infrared window material used (silicon) has thermal characteristics close to those of a normal piston. The two dimensional temperature distribution of a cylinder head surface has been measured during start-up. The imaging results from the camera were checked against the readings from the thermocouples fitted into the cylinder head. The agreement was very good, and gives confidence in the system.
Technical Paper

The DAAAC Protocol: A Procedure for Developing Accelerated Aging Cycles for Diesel Aftertreatment

2022-08-30
2022-01-1017
Accelerated aging of automotive gasoline emissions catalysts has been performed on bench engines for decades. The EPA regulations include an accelerated aging cycle called the Standard Bench Cycle (SBC) that is modeled on the RAT-A cycle developed by GM Corp. and published in 1988. However, this cycle cannot be used for diesel aftertreatment components because it is based on stoichiometric operation, whereas diesel engines typically operate under excess air (lean) conditions. The need for accelerated aging cycles for diesel emissions systems can be illustrated by considering that the full useful life (FUL) requirement in the United States for an on-highway truck is 435,000 miles, and an off-road application may be 8,000 hours. With the recent CARB Omibus legislation, the durability duration will be increasing for on-road applications by as much as 80 percent in the next decade.
Technical Paper

The DASS-II Data Acquisition and Storage System for the Navy Enhanced Hybrid III Type Manikin

1993-03-01
930102
The research use of manikins for test and evaluation of escape and crashworhty seating systems, life support devices and a variety of safety equipments is well documented by the military and automotive communities. The manikin functions to load the aircraft or automotive seating system, interacting with the surrounding environment and optimally simulates human biodynamic response to the transitory acceleration of interest. Ideally, the manikin response closely approximates human reponses, enabling direct comparison and correlation to known human test data. However, manikins provide only a partial correlation to humans, having limited biofidelity and biodynamic response. The requirement to measure and quantify the 3D response of the manikin have imposed significant electronics and instrumentation requirments, further complicating the attempts to provided improved biodynamic response characteristics to the manikin.
Technical Paper

The DC-10 Fuel System

1973-02-01
730386
The DC-10 fuel system is described with details given for the various subsystems. Reasoning is given for some design features of the several subsystems. System performance capabilities are discussed, including refuel rates and times for various nozzle configurations and fuel supply pressures, defuel capability using pressure and suction methods, pump sizes, and jettison rates. System refinements made since introduction of the DC-10 into commercial service are described. Service experience with the fuel system is discussed.________________
Technical Paper

The DCE Supermileage Engine

2010-05-05
2010-01-1549
Supermileage vehicle is a response to fuel crisis in modern times. Delhi College of Engineering (DCE) Supermileage has evolved since five generations as an answer to this crisis. A given Briggs and Stratton engine was modified as a part of the making of the vehicle. The stock engine with a configuration of 150cc, 3.5bhp, pull start, carbureted, L head, flat combustion chamber, air cooled was modified to a configuration of 52cc, 1bhp, starter motor enabled, fuel injected, overhead, wedge shaped combustion chamber with oil cooling. This paper gives an overview of the procedure followed during the designing, analysis and manufacturing of the parts of the engine and the difficulties overcome during the same.
Technical Paper

The DESIGN of SHEET for PRODUCTION METAL AIRCRAFT PARTS

1944-01-01
440205
THE problem of sheet metal production design is separated into two parts, the determining of working limits of elongation and compression in different types of sheet metal forming, and the application of these limits to the design for formability. This paper is concerned with the second part of the problem. An analytical method of approach is suggested and is illustrated by five examples. In the case of curved flanges, flanged holes, and beads, formulas are given by which the amount of elongation or compression called for by the design may be computed directly from the dimensions given by the design. A possibility for a refinement in the use of the formulas is indicated, and an experimental method for achieving this refinement is pointed out.
Technical Paper

The DEVELOPMENT of the 1200 Traction King

1965-02-01
650679
In a few words we have tried to give you the highlights of the design, manufacture and performance of the 1200 program. I am sure that if you were to talk with the designers, the manufacturing people and the marketing men, they would tell you that we have over simplified every step in the development. The uncomplicated approach to this machine is a result of a lot of hard work by a good many people and through these efforts we have provided a machine with the weight balance and power for maximum performance under a variety of field conditions.
Technical Paper

The DOE/NREL Environmental Science & Health Effects Program - An Overview

1999-04-27
1999-01-2249
This paper summarizes current work in the Environmental Science & Health Effects (ES&HE) Program being sponsored by DOE's Office of Heavy Vehicle Technologies (OHVT) through the National Renewable Energy Laboratory (NREL). The program is regulatory-driven, and focuses on ozone, airborne particles, visibility and regional haze, air toxics, and health effects of air pollutants. The goal of the ES&HE Program is to understand atmospheric impacts and potential health effects that may be caused by the use of petroleum-based and alternative transportation fuels. Each project in the program is designed to address policy-relevant objectives. Studies in the ES&HE Program have four areas of focus: improving technology for emissions measurements; vehicle emissions measurements, emission inventory development/improvement; and ambient impacts, including health effects.
Technical Paper

The DOE/NREL Environmental Science Program

2001-05-14
2001-01-2069
This paper summarizes the several of the studies in the Environmental Science Program being sponsored by DOE's Office of Heavy Vehicle Technologies (OHVT) through the National Renewable Energy Laboratory (NREL). The goal of the Environmental Science Program is to understand atmospheric impacts and potential health effects that may be caused by the use of petroleum-based fuels and alternative transportation fuels from mobile sources. The Program is regulatory-driven, and focuses on ozone, airborne particles, visibility and regional haze, air toxics, and health effects of air pollutants. Each project in the Program is designed to address policy-relevant objectives. Current projects in the Environmental Science Program have four areas of focus: improving technology for emissions measurements; vehicle emissions measurements; emission inventory development/improvement; ambient impacts, including health effects.
Technical Paper

The DOE/NREL Next Generation Natural Gas Vehicle Program - An Overview

2001-05-14
2001-01-2068
This paper summarizes the Next Generation Natural Gas Vehicle (NG-NGV) Program that is led by the U.S. Department Of Energy's (DOE's) Office of Heavy Vehicle Technologies (OHVT) through the National Renewable Energy Laboratory (NREL). The goal of this program is to develop and implement one Class 3-6 compressed natural gas (CNG) prototype vehicle and one Class 7-8 liquefied natural gas (LNG) prototype vehicle in the 2004 to 2007 timeframe. OHVT intends for these vehicles to have 0.5 g/bhp-hr or lower emissions of oxides of nitrogen (NOx) by 2004 and 0.2 g/bhp-hr or lower NOx by 2007. These vehicles will also have particulate matter (PM) emissions of 0.01 g/bhp-hr or lower by 2004. In addition to ambitious emissions goals, these vehicles will target life-cycle economics that are compatible with their conventionally fueled counterparts.
Technical Paper

The Daewoo K series Heavy Duty Diesel Engine - Development and Performance

2000-06-12
2000-05-0072
To meet the more strict regulations against exhaust and noise emissions and the increasingly strong demand for higher power, better fuel economy and higher durability and reliability, Daewoo Heavy Industry Machinery Ltd. has recently developed the K series in-line 6-cylinder, 12.8 liter turbocharged and intercooled diesel engine for heavy duty commercial vehicles. To achieve these targets, the newly advanced technology, high pressure electronic unit injecter (EUI), 4-valve design and the optimized combustion system, symmetric cylinder block with bed plate and decompression engine brake were adopted and developed. The EUI system is also capable of pilot injection and cylinder balancing. This engine meets the EURO-3 emission regulations and has power ratings from 257 to 324 kW at 1800 to 2000 rpm, peak flat torque of 1960 Nm at 1000 to 1500 rpm. And very quiet noise characteristic and sufficient durability and reliability were achieved.
Technical Paper

The Daewoo K series heavy-duty diesel engine~Design feature

2000-06-12
2000-05-0074
DHI has developed completely new six-cylinder K series engine for heavy-duty commercial vehicle as well as other industrial equipment. And DHI will produce it in the new kunsan engine plant. The main development targets were low emissions, excellent fuel economy, longer durability and minimum maintenance. For fulfilling these targets, high-pressure electronic unit injector system (EUI) with 4 valve and overhead camshaft (OHC), symmetrically structured cylinder block with very stiffened cylinder liner and bed plate, decompression engine brake system were adopted. During the design stage, CAE technology played very important role, through detail analysis and optimization. The K series engine achieved low exhaust gaseous emission level of Euro 3 as well as good fuel consumption, noise level lower than 96 dB(A), and major overhaul period longer than 1.5 million km.
Technical Paper

The Daimler-Benz Driving Simulator A Tool for Vehicle Development

1985-02-01
850334
The driving simulator is a computer-controlled tool to study the interface between driver and vehicle response under simulated traffic conditions. It permits a controllable, reproducible and cost-effective study of vehicle parameters up to the limits of active safety under non-dangerous conditions. It also permits driver participation in judging vehicle handling characteristics, and in evaluating the ‘feel’ of the steering, suspension, braking, and drive train, including the driver's environment, beginning with the initial vehicle design stages. The paper will describe fully the concept, design and planned activities as well as report on the new possibilities of using the driving simulator as a research and development tool.
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