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Asme Rc Baja Challenge: Suspension And Steering, Hunter W. Jacobson 2018 Central Washington University

Asme Rc Baja Challenge: Suspension And Steering, Hunter W. Jacobson

All Undergraduate Projects

The American Society of Mechanical Engineers (ASME) usually hosts an RC Baja challenge each year, testing a RC car in three events: slalom, acceleration and Baja. Although ASME will not be holding an event this year, CWU will be holding a similar event with three RC Baja car teams from CWU. The RC car that is tested in these events is designed and manufactured typically in teams of two. The RC car that each team submits must be able to complete these events while also remaining competitive. One part of great importance for the RC car is the suspension and ...


Manufacturing A Composite Wheel Prototype Using 3d Printed Molds, Steven Thuening 2018 Minnesota State University, Mankato

Manufacturing A Composite Wheel Prototype Using 3d Printed Molds, Steven Thuening

All Theses, Dissertations, and Other Capstone Projects

Throughout the evolution of high performance racing, a large emphasis has been on reducing the weight of the vehicle in order to improve its performance. Over the years, new designs and materials have been introduced reducing weight in a variety of different locations. Comparing weight reduced in different areas has shown that some areas are more valuable to reduce than others are. Perhaps one of the most beneficial locations are the wheels. This is because the mass of the wheel is considered unsprung and rotational. Because of this, large improvements towards the reduction of wheel mass have been developed in ...


Characterization Of Rotary Bell Atomizers Through Image Analysis Techniques, Jacob E. Wilson 2018 University of Kentucky

Characterization Of Rotary Bell Atomizers Through Image Analysis Techniques, Jacob E. Wilson

Theses and Dissertations--Mechanical Engineering

Three methods were developed to better understand and characterize the near-field dynamic processes of rotary bell atomization. The methods were developed with the goal of possible integration into industry to identify equipment changes through changes in the primary atomization of the bell. The first technique utilized high-speed imaging to capture qualitative ligament breakup and, in combination with a developed image processing technique and PIV software, was able to gain statistical size and velocity information about both ligaments and droplets in the image data. A second technique, using an Nd:YAG laser with an optical filter, was used to capture size ...


Continuously Variable Transmission Design, Nicholas Wurst 2018 The University of Akron

Continuously Variable Transmission Design, Nicholas Wurst

Williams Honors College, Honors Research Projects

Continuously variable transmissions (CVT's) have been an alternative to traditional transmissions for internal combustion gas or diesel engines. They allow for an infinite number of gear ratios for better fuel economy and performance. One drawback to the CVT is that the belt between the two pulleys often wears or fails prematurely causing the entire CVT to need to be replaced. An alternative method for creating infinite gear ratios within a certain range without the need for a belt is the main objective of this project. The goal of the alternative design is to provide a concept that proves a ...


Reduced Exhaust Emissions Through Blending N-Butanol With Ultra Low Sulfur Diesel And Synthetic Paraffinic Kerosene In Reactivity Controlled Compression Ignition Combustion, Remi Gaubert 2018 Georgia Southern University

Reduced Exhaust Emissions Through Blending N-Butanol With Ultra Low Sulfur Diesel And Synthetic Paraffinic Kerosene In Reactivity Controlled Compression Ignition Combustion, Remi Gaubert

Electronic Theses and Dissertations

Increasing restrictions on the emitted exhaust emissions in diesel engines are becoming a more challenging task than in previous years. An electronic common rail fuel injection system and a port fuel injection (PFI) system were developed for an experimental engine to research dual fuel combustion. The experimental research was conducted at 1500 rpm and 4, 5, and 6 bar indicated mean effective pressure (IMEP). n-Butanol was port fuel injected at a 60% by mass fraction coupled with direct injection (DI) of three fuels, including ultra-low sulfur diesel (ULSD RCCI), a 50-50 wt-% blend of ULSD and butanol (ULSD-Bu RCCI), and ...


Investigation Of Combustion Characteristics Of A Heavy-Duty Diesel Engine Retrofitted To Natural Gas Spark Ignition Operation, Jinlong Liu 2018 West Virginia University

Investigation Of Combustion Characteristics Of A Heavy-Duty Diesel Engine Retrofitted To Natural Gas Spark Ignition Operation, Jinlong Liu

Graduate Theses, Dissertations, and Problem Reports

The conversion of existing diesel engines to natural-gas spark ignition operation by adding a gas injector in the intake manifold for fuel delivery and replacing the diesel fuel injector with a spark plug to initiate and control the combustion process can reduce U.S. dependence on petroleum imports and curtail engine-out emissions. As the conventional diesel combustion chamber (i.e., flat head and bowl-in-piston) creates high turbulence, the engine can operate leaner, which would increase its efficiency and reduce emissions. However, natural gas combustion in such retrofitted engines presents differences compared to that in conventional spark ignited engines. Subsequently, the ...


Comparison Of Emissions Measurement Between A Sensor-Based Compact Emissions Meter And A Standard Pems, Jordan Matthew Leatherman 2018 West Virginia University

Comparison Of Emissions Measurement Between A Sensor-Based Compact Emissions Meter And A Standard Pems, Jordan Matthew Leatherman

Graduate Theses, Dissertations, and Problem Reports

The emissions produced by diesel engines are detrimental to human health, and the environment. To reduce these harmful emissions, engine manufacturers have used exhaust after treatment systems. The main objective of these after-treatment systems is to reduce exhaust emissions with minimal impact on an engines performance. The increase in emission regulations resulted in the need for a portable device to measure emissions. Portable emissions measurement systems (PEMS) are used to ensure engines comply with regulations in the real world. Although these systems are portable and can be installed on a vehicle they are bulky, expensive and time consuming to install ...


Study Of Obstacle Effect On The Gpsr Protocol And A Novel Intelligent Greedy Routing Protocol For Vanets, Ravikumar Chilmula 2018 Michigan Technological University

Study Of Obstacle Effect On The Gpsr Protocol And A Novel Intelligent Greedy Routing Protocol For Vanets, Ravikumar Chilmula

Dissertations, Master's Theses and Master's Reports

In recent years, connected vehicle technologies have been developed by automotive companies, academia, and researchers as part of Intelligent Transportation Systems (ITS). This group of stakeholders continue to work on these technologies to make them as reliable and cost-effective as possible. This attention is because of the increasing connected vehicles safety-related, entertainment, and traffic management applications, which have the potential to decrease the number of road accidents, save fuel and time for millions of daily commuters worldwide.

Vehicular Ad-Hoc Network (VANET), which is a subgroup of Mobile Ad-Hoc Network (MANET), is being developed and implemented in vehicles as the critical ...


Modeling And Analysis For Driveline Jerk Control, Prince Lakhani 2018 Michigan Technological University

Modeling And Analysis For Driveline Jerk Control, Prince Lakhani

Dissertations, Master's Theses and Master's Reports

In modern-day automotive industry, automotive manufacturers pay keen attention to driver’s safety and comfort by ensuring good vehicle drivability, feel of acceleration, limiting jerk and noise. The vehicle driveline plays a critical role to meet these criteria. By using high-fidelity simulation tool such as AMESim®, it is now possible to accurately model the vehicle driveline to be tested for different scenarios. With Simulink®, one can develop an efficient torque-based control system to limit the driveline oscillations and the generated noise. So, a joint simulation is used which provides a platform to evaluate the estimators and control system while considering ...


Control Oriented Modeling Of An Automotive Drivetrain For Anti-Jerk Control, Gurijala Venkat Prithvi Reddy 2018 Michigan Technological University

Control Oriented Modeling Of An Automotive Drivetrain For Anti-Jerk Control, Gurijala Venkat Prithvi Reddy

Dissertations, Master's Theses and Master's Reports

Drivability is an important metric during the development of an automobile. Calibration engineers spend a significant amount of time trying to improve the drivability of vehicles for various driving conditions. With an increase in the available computational power in an automobile, novel model-based methods are being implemented for further improving the drivability, while reducing calibration time and effort. Phenomenon known as clunk and shuffle, which are caused due to backlash and compliance in the driveline, are a major cause of issues related to drivability and noise, vibration and harshness (NVH) during tip-in and tip-out scenarios.

This thesis focuses on developing ...


Video Frame Reduction In Autonomous Vehicles, Gaurav R. Bagwe 2018 Michigan Technological University

Video Frame Reduction In Autonomous Vehicles, Gaurav R. Bagwe

Dissertations, Master's Theses and Master's Reports

Camera sensors are emerging in many applications such as Smart Buildings and autonomous driving. The Data generated by multiple cameras in a smart building and autonomous driving applications is usually transmitted through an edge box to a cloud terminal. This transmitted information requires a considerable channel bandwidth, which is not available through current communication standards. The report proposes a Camera Sensor Frame Reduction method to decrease the required channel bandwidth for applications such as autonomous driving.

Here, we propose a method that incorporates cross frame similarity measurement method to reduce the redundant frames and decrease the data rate of each ...


A Simplified Simulation Model To Estimate The Storage Length Of The Right-Turn Lane In Left-Hand Traffic At Signalised Intersections For Different Signal Phases And Cycle Timings, Noura Ishak-Thomas, Steven J. Richardson, Sanjay K. Shukla 2018 Edith Cowan University

A Simplified Simulation Model To Estimate The Storage Length Of The Right-Turn Lane In Left-Hand Traffic At Signalised Intersections For Different Signal Phases And Cycle Timings, Noura Ishak-Thomas, Steven J. Richardson, Sanjay K. Shukla

ECU Publications Post 2013

Introduction:

A large number of the current guidelines and models are used to estimate the right-turn lane (RTL) length in left-hand traffic at signalised intersections under split phase, in which the movement of traffic in the right-turn lane and through lane happen concurrently. There is a need to examine other phase types and timings as a part of the RTL design. This is particularly significant in the case of established intersections that cannot be modified due to physical constraints.

Methods:

A MATLAB based simulation programme was developed to provide an estimate of the right-turn lane storage length for different traffic ...


A Complementary Cyber-Human Systems Framework For Industry 4.0 Cyber-Physical Systems, Matthew Krugh, Laine Mears 2018 Clemson University

A Complementary Cyber-Human Systems Framework For Industry 4.0 Cyber-Physical Systems, Matthew Krugh, Laine Mears

Publications

Humans are a vital element to automotive manufacturing; however, skilled production personnel have largely been designated as data receivers in Cyber-Physical Systems (CPS) of Industry 4.0. A renewed focus on the human worker who completes significant portions of manual value-added content in automotive assembly through Cyber-Human Systems (CHS) is allowing humans to perform their jobs more safely, efficiently, and supporting enhanced control and quality monitoring of manual manufacturing tasks. There is a need for a unified complementary framework of CHS and CPS to guide the implementation of future smart manufacturing systems.


Effects Of Air-Fuel Ratio And Operating Conditions On Particle Emissions From A Small Diesel Engine, Odinmma John-Paul Ofili 2018 Bucknell University

Effects Of Air-Fuel Ratio And Operating Conditions On Particle Emissions From A Small Diesel Engine, Odinmma John-Paul Ofili

Master’s Theses

Automotive engineers typically increase the air-fuel ratio (AFR) of an engine to control the amount of smoke emitted, but it not quite known how this process affects particulate number (PN). In the work presented, AFR was independently varied to study its effects on PN. It was found that increasing the AFR reduced the concentrations of larger particles from 108 #/cm3 to 106 #/cm3 which is an effect observable as a reduction in smoke. However, the same increases in AFR only resulted in an energy specific PN change from 1015 #/kWh to 1014 #/kWh. The ...


Application Of Real Field Connected Vehicle Data For Aggressive Driving Identification On Horizontal Curves, Arash Jahangiri, Vincent Berardi, Sahar Ghanipoor Machiani 2017 San Diego State University

Application Of Real Field Connected Vehicle Data For Aggressive Driving Identification On Horizontal Curves, Arash Jahangiri, Vincent Berardi, Sahar Ghanipoor Machiani

Psychology Faculty Articles and Research

The emerging technology of connected vehicles generates a vast amount of data that could be used to enhance roadway safety. In this paper, we focused on safety applications of a real field connected vehicle data on a horizontal curve. The database contains connected vehicle data that were collected on public roads in Ann Arbor, Michigan with instrumented vehicles. Horizontal curve negotiations are associated with a great number of accidents, which are mainly attributed to driving errors. Aggressive/risky driving is a contributing factor to the high rate of crashes on horizontal curves. Using basic safety message data in connected vehicle ...


Design Of Flight Control Laws For A Novel Stratospheric Dual-Aircraft Platform, Cindy Nshuti 2017 Embry-Riddle Aeronautical University

Design Of Flight Control Laws For A Novel Stratospheric Dual-Aircraft Platform, Cindy Nshuti

Dissertations and Theses

Dual-aircraft platform (DAP) is a novel concept that features two glider-like unmanned aerial systems (UAS) tethered via a thin adjustable cable allowing them to sail back-and-forth, without propulsion, using vertical wind shear. DAP offers the potential of a low-cost atmospheric satellite. This thesis presents the results of an initiative to demonstrate this novel flight concept through modeling, simulation, and flight testing at Embry-Riddle Aeronautical University (ERAU). A realistic simulation environment, described herein, was developed to support the development and testing of flight control systems. This environment includes nonlinear aerodynamic models for the aircraft, a multi-element cable dynamics model, propeller-motor thrust ...


An Evaluation Of The Effects Of Motorcycle Led Brake Lamp Flash Frequency Sequences On Conspicuity During Texting In A Static Vehicle, Jeffrey A. Krupa 2017 Indiana University of Pennsylvania

An Evaluation Of The Effects Of Motorcycle Led Brake Lamp Flash Frequency Sequences On Conspicuity During Texting In A Static Vehicle, Jeffrey A. Krupa

Theses and Dissertations (All)

The objective of this study was to use mobile eye tracking methodology to examine the effect on a motorcycle appliqué’s conspicuity to determine if oculomotor capture was achieved by three LED brake lamp treatments: (1) 83.30 millisecond flash frequency sequence, (2) 117.50 millisecond flash frequency sequence, and (3) the continuous state. This study is based upon the findings of Wierwille, Llaneras, and Neurauter (2009). Using subjective impression rankings, Wierville et al. (2009) determined the optimal attention-grabbing flash frequency for LED automotive tail lamp assemblies is 83.30 milliseconds, and 117.50 milliseconds is a near-optimal flash frequency ...


2017 Robinson Engine Design, Christian Klem, Alli Giblin, James Gross 2017 Southern Illinois University Carbondale

2017 Robinson Engine Design, Christian Klem, Alli Giblin, James Gross

ASA Multidisciplinary Research Symposium

The Robinson-Malibu patent is an engine design theory that will reduce emissions, increase MPGs and performance.


Performance Results Of Using Waste Vegetable Oil Based Biodiesel Fuel In A Turboshaft Gas Turbine Engine, Donald Bartlett 5218591, Blaine M. Heisner 2017 Southern Illinois University Carbondale

Performance Results Of Using Waste Vegetable Oil Based Biodiesel Fuel In A Turboshaft Gas Turbine Engine, Donald Bartlett 5218591, Blaine M. Heisner

ASA Multidisciplinary Research Symposium

The purpose of this research is to record and compare the operating parameters of a turboshaft gas turbine engine using two different blends of biodiesel fuel and the standard Jet A fuel.


What Happens To Nox Emissions Of Vw Diesel Cars When Water/Methanol Injection Is Used?, Andrew Croxell 2017 Southern Illinois University Carbondale

What Happens To Nox Emissions Of Vw Diesel Cars When Water/Methanol Injection Is Used?, Andrew Croxell

ASA Multidisciplinary Research Symposium

Volkswagen has come under fire for their "Clean Diesel" automobiles that were found to emit too much NOx (Oxides of Nitrogen) when driven on the street. Since NOx is created by high temperature combustion events, the addition of a water/methanol injection system was tested on a VW diesel vehicle to identify if it could cool combustion temperatures and thus reduce NOx to an acceptable specification.


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