715 research outputs found
Computer Controlled Eddy Current Brake Bicycle Trainer
No full textDynastream Innovations developed a proprietary multi-cast network protocol called Advanced and Adaptive Network Technology (ANT). This protocol has gained popularity for applications in the exercise industry. Bicycle smart trainers can now use a prescribed workout and feedback communicated by ANT to precisely control resistance. This research builds upon the ANT protocol to create a proof of concept bicycle trainer that controls resistance by use of an eddy current brake on the bicycle's aluminum rear wheel rim. The eddy current brake does not touch the bicycle so it provides minimal wear to the rider's gear. The trainer uses a pre-programmed workout and the rider's power feedback to adjust the trainer's resistance. The power feedback is achieved via the ANT protocol, while the trainer control and communication processing is provided by a Microcontroller Unit (MCU).masters, M.S., Electrical and Computer Engineering -- University of Idaho - College of Graduate Studies, 2017-1
Tools for successful NRM in the Lake Eyre Basin: Achieving effective engagement
No full textThis chapter was developed as part of the ‘People, communities and economies of the Lake Eyre Basin’ project. It has been written for communities, government agencies and interface organisations involved in natural resource management (NRM) in the Lake Eyre Basin (LEB). Its purpose is to identify the key factors for successful community engagement processes relevant to the LEB and present tools and principles for successful engagement processes. The term ‘interface organisation’ is used here to refer to the diverse range of local and regional organisations (such as Catchment Committees or NRM Regional Bodies) that serve as linkages, or translators, between local communities and broader Australian and State Governments. The importance of fostering and harnessing effective processes of community engagement has been identified as crucial to building a prosperous future for rural and remote regions in Australia. \ud
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The chapter presents an overview of the literature on successful community engagement processes for NRM, as well as an overview of the current NRM arrangements in the LEB. The main part of the chapter presents findings of the series of interviews conducted with the government liaison officers representing both state and federal organisations who are responsible for coordinating and facilitating regional NRM in the LEB, and with the members of communities of the LEB
Brake squeal: A fundamental study on bicycle brake squeal
No full textBrake squeal is a well know problem in the bicycle industry. Most of the time brake squeal occurs due to wear of the brake components and/or in certain environmental conditions (e.g. rain and dirt). Bicycle brake squeal is often solved by trial and error. Compared to automotive industry, there is not much research done on the fundamental cause of bicycle brake squeal. As a result, bicycle brands are not able to guarantee that their bicycles will not produce squeal noise over time. The goal of this graduation project is to get more insight into the fundamental cause of bicycle brake squeal and to find the crucial parameters that influence bicycle brake squeal.Mechanical Engineerin
Institutional Arrangements for the Community Engagement in the Natural Resources Management: Case Study of the Lake Eyre Basin
No full textThis paper presents an overview of the formal institutional arrangements for natural resource management (NRM) in the Lake Eyre Basin (LEB) and the role of these arrangements as an enabling environment for community engagement in NRM. The appropriate scale of NRM management and the complexity and expense of effective community engagement is discussed. The paper highlights challenges faced by NRM groups in remote regions and their need for proper support and sharing in significant decision making processes. Regional interface groups are presented as relatively recent experiments in ecological intervention that have operated in a rapidly changing policy environment. The paper concludes with a summary of potential key challenges for NRM in the LEB region and suggests that interface organisations require understanding, capacity and support to utilise their investments and program activities to learn about how to improve and adapt to meet the challenges of their operating environment.institutional arrangements, NRM, participation, public consultation
GAB Adaptive Management Plan
No full textBrake, L, Harris, C, Jensen, A, Keppel, M, Lewis, M & Lewis, S (Project Team, Lynn Brake, Colin Harris, Simon Lewis, Travis Gotch, Megan Lewis, Andy Love, David Leek, Mark Keppel, Anne Jensen
Hydraulic brake-system for a bicycle
No full textThe invention relates to a hydraulic brake system for a bicycle which may or may not be provided with an auxiliary motor, comprising a brake disc and brake claws cooperating with the brake disc, as well as fluid-containing channels (4,6) that extend between an operating organ (1) and the brake claws, and which system further possesses a spring-loaded pistion (11) accommodated and moveable in a first chamber (13).Mechanical, Maritime and Materials Engineerin
Model-Based Brake Control including Tyre Behaviour
No full textThe objective of the thesis is to develop a method for controlled braking of a vehicle. The brake pedal depression has been considered to be proportional to the intended deceleration. The brake controller is not aimed to replace a cruise control; it will have an anti-lock braking (ABS) function. The brake control is essentially designed to be a continuous control law with a continuous brake torque output suitable for using it on real world actuators. To develop the continuous control and taking into account the friction and elastic properties of the tyre, a quarter-car model with LuGre tyre has been derived. Considering only a quarter car keeps the model compact and by having 4 brake controllers each wheel can be controlled individually...Precision and Microsystems EngineeringMechanical, Maritime and Materials Engineerin
Concept brake system of cycle-car
No full textTato diplomová práce se zabývá návrhem brzdové soustavy motorové tříkolky, konstrukčním řešením zvolené koncepce a homologováním. V úvodu se autor zaměřuje na charakteristiku mototříkolky z pohledu možných použitých a navrhovaných komponentů. Následná kapitola je zaměřena na výchozí parametry mototříkolky a její další návrhy a vyhodnocení různých řešení brzdových soustav. V další kapitole se autor zaměřuje na homologaci brzdové soustavy. Poslední kapitola už počítá s konstrukčním řešením zvolené brzdové soustavy.The diploma thesis deals with concept of brake system of cycle car, structural design and homologation. In introduction the author focuses on characteristics of the cycle car from the view of possibly used and suggested components. Another part of the thesis is focused on initial parameters of the cycle car and its other concepts and evaluation of different solutions of brake systems. Further, the author focuses on homologation of brake system. The last part of the thesis deals with constructive solution of chosen brake system.Katedra dopravních prostředků a diagnostikyDokončená práce s úspěšnou obhajobo
System Identification of the Brake Setup in the TU Delft Vehicle Test Lab
No full textTesting facilities such as the TU Delft Vehicle Test Lab (VTL) are needed to provide necessary experimental data to validate and to compare the performance of several ABS controllers like the Feed-Forward Braking controller. Before testing ABS controllers with the VTL measurement system, it needs to be improved first. Earlier measurements reported in [11] showed a lack of developed braking torque due to decreased bandwidth of the measurement setup. This problem could be within the hydraulic brake line of the VTL measurement setup. Pressure dynamics results of the original situation show a significant decrease when increasing the actuating frequency. Differences in pressure dynamics are examined by replacing the original brake hose with a stainless steel braided brake hose. Sinus wave excitation measurements show a relative small increase of the maximal reaching brake pressure with the design improvements situation. Random noise excitation measurements show increased bandwidth, compared to the frequency results reported in [4] and [11]. Improvements in brake pressure dynamics are realized by using a stainless steel braided brake hose in addition with relative low varying amplitudes.Precision and Microsystems EngineeringMechanical, Maritime and Materials Engineerin
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