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Showing 1 to 20 of 21 for “"off-road vehicle"”.
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Torque control strategy for off-road vehicle mobility.
Multi-wheeled off-road vehicles behavior depend not only on the total provided power by the engine but also on the power distribution among the drive axles/wheels. In turn, this distribution is primarily regulated by the drivetrain layout and the torque distribution devices. At the output of the …
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Predicting Soil Erosion on Off-Road Vehicle Trails in Southwest Missouri
… is one of the few USFS managed areas that allow Off-Road Vechicle (ORV) use on specially designated trails since the 1960s. Soil erosion is a focal area of concern for environmental groups in the area. Methods for predicting soil erosion include the Universal Soil Loss Equation (USLE), Modified …
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Off road vehicle soil suitability analysis within the Kisatchie National Forest
Soil degradation due to improper use of off road vehicle (ORV) is among the major problems in the Kisatchie National Forest (KNF), especially in Catahoula (CRD), Evangeline Unit, Calcasieu (ERD), and Kisatchie Ranger (KRD) districts. The USDA-Forest Service (USFS) maintains designated trails within …
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Intelligent mobility control of a hybrid electric off-road vehicle with individual wheel control
… the use of Individual Wheel Control on a large off-road vehicle. The vehicle concerned is a theoretical, six-wheel drive, off-road Hybrid-Electric Vehicle based on an existing conventional six-wheel-drive Combat Support Vehicle developed by QinetiQ (formerly DERA). The proposed vehicle utilises …
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Finite Element Model Validation and Testing of an Off-Road Vehicle under Dynamic Loading Conditions
<p>In the vehicle design life cycle, validation tests consume a significant portion of the available development time. With a short, one-year design cycle, the Embry-Riddle Baja Team leverages computer-aided engineering (CAE) tools to simulate critical test cases whose loading conditions can be …
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Activity patterns at Cape Hatteras National Seashore: an analysis of off-road vehicle and pedestrian users among visitors and residents
… Banks, and to explore the differences in use for off-road vehicle (ORV) users and pedestrians within each of these user groups. During the summer of 1978, 598 visitors were randomly sampled at Cape Hatteras and sent mail-back questionnaires. Eighty percent of the 598 eligible respondents returned …
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Ride Simulation of Passive, Active, and Semi-Active Seat Suspensions for Off-Road Vehicles
… active, and semi-active suspension systems for off-road vehicle seat suspensions. Each suspension model was combined with a three degree of freedom model of the vehicle operator to formulate models of the ride systems of off-road vehicles. Ride performance of the suspension systems were computer …
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Study of driver-seat interactions and enhancement of vehicular ride vibration environment
… risks for the drivers, specifically for the off-road vehicle drivers. Enhancement of shock and vibration environment of such vehicles involves characterization of vibration environment, biodynamic response of the driver, design and analysis of secondary suspension, and seating dynamics. …
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Modular Vehicle Design Concept
Outlined herein is the Modular Vehicle [MODV] concept as a cost effective, utilitarian, and highly functional vehicle concept for the changing demands placed on a MAGTF [Marine Air-Ground Task Force] or SP-MAGTF [Special Purpose Marine Air-Ground Task Force] in the 21st century. A large focus is …
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Developing A Multi-Purpose Trail System At Pomme De Terre Lake
… of Engineers as well as state, county, local officials, and user groups. A public meeting was conducted during the course of this study. This study confirmed the need and projected economic feasibility for the development of a multi-purpose trail system and the economic development …
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Plant Response Parameters to General Patton's Armored Maneuvers in the Eastern Mojave Desert of California
… for predicting recovery rates on the effects of off-road vehicle impacts in the California Desert Conservation Area (CDCA). These impacts were assessed in three usage categories: tank tracks in the maneuvers areas; roadways, which were used primarily by jeeps and trucks; and tent areas, cleared …
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Offroad autonomous vehicle development and model-based adaptive robust control strategy
… driving has seen increasing applications in off-road environments, driven by advancements in sensing and control technologies. To operate reliably under severe off-road conditions, a robust and adaptable off-road platform is essential. Off-road environments, in particular, present unique …
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Lateral tyre forces on off-road surfaces
A successful model for off-road tyres must be reliable, efficient and capable of reproducing and predicting the main system phenomena. Mathematical models are proposed for longitudinal, lateral and combined lateral and longitudinal force generation characteristics of off-road tyres. For a better …
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RECREATION ALLOCATIONS ON NATIONAL FORESTS: THE CLAIMS AND FRAMES OF RECREATIONISTS
… in-depth interviews with 35 hikers and off-road vehicle (ORV) drivers in south-central Montana.</p> <p>The study indicated that the claims and views of hikers and ORV drivers differed in a number of important ways. First, most hikers stated that national forests should be managed to …
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RECREATION ALLOCATIONS ON NATIONAL FORESTS: THE CLAIMS AND FRAMES OF RECREATIONISTS
… in-depth interviews with 35 hikers and off-road vehicle (ORV) drivers in south-central Montana.</p> <p>The study indicated that the claims and views of hikers and ORV drivers differed in a number of important ways. First, most hikers stated that national forests should be managed to …
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Impact of military maneuvers on Mojave Desert surfaces: A multiscale analysis
… California, provides a study area of intense off-road vehicle (ORV) activity spanning a 50-year period. This study documents a case of concentrated ORV activity on sensitive desert environments, and the resulting environmental impacts. Geomorphic surfaces from two study sites within the Ft. …
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Sampling-based motion planning algorithms for dynamical systems
… of dynamical systems, including time-optimal off-road vehicle maneuvers as the main example. Second, we propose a semi-analytic TPBVP approach for differentially flat systems or partially flat systems, by which the computation of vehicle maneuvers is expedited and the capability to handle …
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Deterministic and Stochastic Semi-Empirical Transient Tire Models
… is one of the most important components of the vehicle. It has many functions, such as supporting the load of the vehicle, transmitting the forces which drive, brake and guide the vehicle, and acting as the secondary suspension to absorb the effect of road irregularities before transmitting the …
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Autonomous machine vision for off-road vehicles in unstructured fields
Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2009-11-23T22:49:28Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 Wang_Qi.pdf: 4053834 bytes, checksum: 1815ebd53b3114955aa9e716b10fba3e (MD5) Wang_Qi.doc: 7308288 bytes, checksum: …
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Experimental Study on the Mobility of Lightweight Vehicles on Sand
… of the mobility of lightweight autonomous vehicles with varying locomotion platforms on sand. This research involves four segments. The first segment is a review of military criteria for the development of lightweight unmanned ground vehicles, followed by a review a review of current …
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