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Mechanical Design and Analysis of a Discrete Variable Transmission System for Transmission-Based Actuators
University of Tennessee, Knoxville TRACE: Tennessee Research and Creative Exchange Masters Theses Graduate School 5-2004 Mechanical Design and Analysis of a Discrete Variable Transmission System for Transmission-Based Actuators Sriram Sridharan University of Tennessee - Knoxville Follow this and additional works at: https://trace.tennessee.edu/utk_gradthes Part of the Mechanical Engineering Commons Recommended Citation Sridharan, Sriram, "Mechanical Design and Analysis of a Discrete Variable Transmission System for Transmission-Based Actuators. " Master's Thesis, University of Tennessee, 2004. https://trace.tennessee.edu/utk_gradthes/2205 This Thesis is brought to you for free and open access by the Graduate School at TRACE: Tennessee Research and Creative Exchange. It has been accepted for inclusion in Masters Theses by an authorized administrator of TRACE: Tennessee Research and Creative Exchange. For more information, please contact [email protected]. To the Graduate Council: I am submitting herewith a thesis written by Sriram Sridharan entitled "Mechanical Design and Analysis of a Discrete Variable Transmission System for Transmission-Based Actuators." I have examined the final electronic copy of this thesis for form and content and recommend that it be accepted in partial fulfillment of the equirr ements for the degree of Master of Science, with a major in Mechanical Engineering. Arnold Lumsdaine, Major Professor We have read this thesis and recommend its acceptance: William R. Hamel, Frank H. Speckhart Accepted for the Council: Carolyn -
RECIPROCATING ENGINES Franck Nicolleau
RECIPROCATING ENGINES Franck Nicolleau To cite this version: Franck Nicolleau. RECIPROCATING ENGINES. Master. RECIPROCATING ENGINES, Sheffield, United Kingdom. 2010, pp.189. cel-01548212 HAL Id: cel-01548212 https://hal.archives-ouvertes.fr/cel-01548212 Submitted on 27 Jun 2017 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Distributed under a Creative Commons Attribution - NonCommercial| 4.0 International License Mechanical Engineering - 14 May 2010 -1- UNIVERSITY OF SHEFFIELD Department of Mechanical Engineering Mappin street, Sheffield, S1 3JD, England RECIPROCATING ENGINES Autumn Semester 2010 MEC403 - MEng, semester 7 - MEC6403 - MSc(Res) Dr. F. C. G. A. Nicolleau MD54 Telephone: +44 (0)114 22 27700. Direct Line: +44 (0)114 22 27867 Fax: +44 (0)114 22 27890 email: F.Nicolleau@sheffield.ac.uk http://www.shef.ac.uk/mecheng/mecheng cms/staff/fcgan/ MEng 4th year Course Tutor : Pr N. Qin European and Year Abroad Tutor : C. Pinna MSc(Res) and MPhil Course Director : F. C. G. A. Nicolleau c 2010 F C G A Nicolleau, The University of Sheffield -2- Combustion engines Table of content -3- Table of content Table of content 3 Nomenclature 9 Introduction 13 Acknowledgement 16 I - Introduction and Fundamentals of combustion 17 1 Introduction to combustion engines 19 1.1 Pistonengines.................................. -
Eaton® Repair Information
® Eaton October, 1991 Hydrostatic Transaxle Repair Information A 751, 851, 771, and 781 Transaxle 1 The following repair information applies to mance. Work in a clean area. After disassem- the Eaton 751, 851,771, and 781 series hydro- bly, wash all parts with clean solvent and blow static transaxles. the parts dry with air. Inspect all mating sur- faces. Replace any damaged parts that could cause internal leakage. Do not use grit paper, files or grinders on finished parts. Note: Whenever a transaxle is disassembled, our recommendation is to replace all seals. Lubricate the new seals with petroleum jelly before installation. Use only clean, recom- mended hydraulic fluid on the finished sur- faces at reassembly. Part Number, Date of Assembly, and Input Rotation Stamped on this Surface 6 The following tools are required for disas- Assembly Date of Part Number Input Rotation Build Code sembly and reassembly of the transaxle. (CW or CCW) • 3/8 in. Socket or End Wrench Customer • 1 in. Socket or End Wrench Part Number XXX-XXX XXX XXXXXX Factory ( if Required ) XXXXXX XX/XX/XX 11 Rebuild • Ratchet Wrench Code • Torque Wrench 300 lb-in [34 Nm] Original Build Factory Rebuild ( example - 010191 ) ( example - 01/01/91 11 ) • 5/32 Hex Wrench 01 01 91 01 01 91 11 • Small screwdriver (4 in [102 mm] to 6 in. Year Number of [150 mm] long) Day Year Times Rebuilt (2) • No. 5 or 7 Internal Retaining Ring Pliers Month Day Month • No. 4 or 5 External Retaining Ring Pliers • 6 in. [150 mm] or 8 In. -
The Effects of Combustion Chamber Design On
THE EFFECTS OF COMBUSTION CHAMBER DESIGN ON TURBULENCE, CYCLIC VARIATION AND PERFORMANCE IN AN SI ENGINE By Esther Claire Tippett B.E.Mech (Hons) University of Canterbury, New Zealand. 1983 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF APPLIED SCIENCE in THE FACULTY OF GRADUATE STUDIES DEPARTMENT OF MECHANICAL ENGINEERING We accept this thesis as conforming to the required standard THE UNIVERSITY OF BRITISH COLUMBIA August, 1989 © Esther Claire Tippett, 1989 In presenting this thesis in partial fulfilment of the requirements for an advanced degree at the University of British Columbia, I agree that the Library shall make it freely available for reference and study. I further agree that permission for extensive copying of this thesis for scholarly purposes may be granted by the head of my department or by his or her representatives. It is understood that copying or publication of this thesis for financial gain shall not be allowed without my written permission. Department of Mechanical Engineering The University of British Columbia Vancouver, Canada Date: ABSTRACT An experimental program of motored and fired tests has been undertaken on a single cylinder spark ignition engine to determine the influence of combustion chamber design on turbulence enhancement in the achievement of fast lean operation. Flow field measurements were taken using hot wire anemometry in the cylinder during motored operation. On line performance tests and in-cylinder pressure data were recorded for the operation of the engine by natural gas at lean and stoichiometric conditions over a range of speed and loads. Squish and squish jet action methods of turbulence enhancement were investigated for six configurations, using a standard bathtub cylinder head and new piston designs incorporating directed jets through a raised wall, a standard bowl-in-piston chamber and an original squish jet design piston. -
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Journal of Mechanical Engineering and Automation 2020, 9(1): 1-8 DOI: 10.5923/j.jmea.20200901.01 Verification of the Dynamic Characteristics of an Epicyclic Gear Train Using Epicyclic Gear Train and Torque Apparatus Mauton Gbededo1,2,*, Chukwuemeke Onyenefa2, Matthew Arowolo1 1Department of Mechatronics Engineering, Federal University, Oye-Ekiti, Nigeria 2Department of Mechanical & Biomedical Engineering, Bells University of Technology, Ota, Nigeria Abstract An epicyclic gear train consists of two gears, mounted so that the center of one gear revolved around the center of the other. A carrier connects the centers of the two gears and it rotates to carry one gear, called the planet gear or planet pinion, around the other, called the sun gear or sun wheel. The planet and sun gears were meshed so that their pitch circles rolled without slipping. A point on the pitch circle of the planet gear traced an epicycloid curve. This paper deals with analysis and verification of dynamic characteristics of an epicyclic gear train using the gear train and torque apparatus. The apparatus was installed in the Engineering lab while taking adequate safety precautions to ensure accurate collection of data. A record of the input, holding and output at various speed of the gear system were taken. At the end of the experiment, gear ratio, speed ratio and torque relationship of the epicyclic gear train were obtained. The experimental results were compared to the analytical data from various calculations using respective governing equations. It was observed that the experimental results were similar to the analytical data obtained for the speed ratio and torque relationship with a maximum 1.11% deviation between the two methods for torque relationship and 1.6% for the speed ratios, which were due to some frictional and mechanical losses in the belt and gear system. -
INDUSTRIAL REVOLUTION: SERIES ONE: the Boulton and Watt Archive, Parts 2 and 3
INDUSTRIAL REVOLUTION: SERIES ONE: The Boulton and Watt Archive, Parts 2 and 3 Publisher's Note - Part - 3 Over 3500 drawings covering some 272 separate engines are brought together in this section devoted to original manuscript plans and diagrams. Watt’s original engine was a single-acting device for producing a reciprocating stroke. It had an efficiency four times that of the atmospheric engine and was used extensively for pumping water at reservoirs, by brine works, breweries, distilleries, and in the metal mines of Cornwall. To begin with it played a relatively small part in the coal industry. In the iron industry these early engines were used to raise water to turn the great wheels which operated the bellows, forge hammers, and rolling mills. Even at this first stage of development it had important effects on output. However, Watt was extremely keen to make improvements on his initial invention. His mind had long been busy with the idea of converting the to and fro action into a rotary movement, capable of turning machinery and this was made possible by a number of devices, including the 'sun-and-planet', a patent for which was taken out in 1781. In the following year came the double-acting, rotative engine, in 1784 the parallel motion engine, and in 1788, a device known as the 'governor', which gave the greater regularity and smoothness of working essential in a prime mover for the more delicate and intricate of industrial processes. The introduction of the rotative engine was a momentous event. By 1800 Boulton and Watt had built and put into operation over 500 engines, a large majority being of the 'sun and planet type'. -
Obtaining a Royal Privilege in France for the Watt Engine, 1776-1786 Paul Naegel, Pierre Teissier
Obtaining a Royal Privilege in France for the Watt Engine, 1776-1786 Paul Naegel, Pierre Teissier To cite this version: Paul Naegel, Pierre Teissier. Obtaining a Royal Privilege in France for the Watt Engine, 1776- 1786. The International Journal for the History of Engineering & Technology, 2013, 83, pp.96 - 118. 10.1179/1758120612Z.00000000021. hal-01591127 HAL Id: hal-01591127 https://hal.archives-ouvertes.fr/hal-01591127 Submitted on 20 Sep 2017 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. int. j. for the history of eng. & tech., Vol. 83 No. 1, January 2013, 96–118 Obtaining a Royal Privilege in France for the Watt Engine (1776–1786) Paul Naegel and Pierre Teissier Centre François Viète, Université de Nantes, France Based on unpublished correspondence and legal acts, the article tells an unknown episode of Boulton and Watt’s entrepreneurial saga in eighteenth- century Europe. While the Watt engine had been patented in 1769 in Britain, the two associates sought to protect their invention across the Channel in the 1770s. They coordinated a pragmatic strategy to enrol native allies who helped them to obtain in 1778 an exclusive privilege from the King’s Council to exploit their engine but this had the express condition of its superiority being proven before experts of the Royal Academy of Science. -
Steam Engine Collection
STEAM ENGINE COLLECTION The New England Museum of Wireless And Steam Frenchtown Road ~ East Greenwich, R.I. International Mechanical Engineering Heritage Collection Designated September 12, 1992 The American Society of Mechanical Engineers INTRODUCTION It has been said that an operating steam engine is ‘visual music’. The New England Museum of Wireless and Steam provides the steam engine enthusiast, the mechanical engineer and the public at large with an opportunity to experience the ‘music’ when the engines are in steam. At the same time they can appreciate the engineering skills of those who designed the engines. The New England Museum of Wireless and Steam is unusual among museums in its focus on one aspect of mechanical engineering history, namely, the history of the steam engine. It is especially rich in engines manufactured in Rhode Island, a state which has had an influence on the history of the steam engine in the United States out of all proportion to its size and population. Many of the great names in the design and manufacture of steam engines received their training in Rhode Island, most particularly in the shops of the Corliss Steam Engine Co. in Providence. George H. Corliss, an important contributor to steam engine technology, founded his company in Providence in 1846. Engines that used his patent valve gear were built in large numbers by the Corliss company, and by others, both in the United States and abroad, either under license or in various modified forms once the Corliss patent expired in 1870. The New England Museum of Wireless and Steam is particularly fortunate in preserving an example of a Corliss engine built by the Corliss Steam Engine Company. -
Combustion System Development for the Next Generation Hd Gas Engines
COMBUSTION SYSTEM DEVELOPMENT FOR THE NEXT GENERATION HD GAS ENGINES REPORT 2018:477 Combustion System Development for the Next Generation HD Gas Engines COSTGAS LUDVIG ADLERCREUTZ ISBN 978-91-7673-477-3 | © Energiforsk March 2018 Energiforsk AB | Phone: 08-677 25 30 | E-mail: [email protected] | www.energiforsk.se COMBUSTION SYSTEM DEVELOPMENT FOR THE NEXT GENERATION HD GAS ENGINES Foreword COSTGAS is a project in Heavy Duty gas engines in which the combustion system for the next generation gas engines is to be developed. The goal of the project is to increase the efficiency of the current gas engine platform by 10% and increase the torque by 20%. This is done while observing the boundary conditions of the current Euro VI emissions regulations. The report has been produced by AVL Powertrain Scandinavia, Scania CV and the Royal Institute of Technology. The authors are Ludvig Adlercreutz (AVL). The author would like to acknowledge the Swedish Energy Agency, Energiforsk - Swedish Energy Research Center, for its financial contribution to the project within the scope of the program “Samverkansprogram Energigasteknik” – The cooperation research program Energy gas technology. This work was also made possible by financial support from AVL Powertrain Scandinavia. The authors thank research engineer Asko Kinnunen (AVL) and Petri Fransman (AVL) for help during experiments. Special thanks to Daniel Danielsson (AVL) for the assistance in setting up the experiments. Johan Fjällman is also acknowledged for his invaluable help in finalizing the report. The study had a working group with the following members: Thomas Åkerblom (Scania), Fredrik Königsson (AVL), Johannes Andersen (AVL), Jonas Modin (AVL), Andreas Cronhjort (KTH) and Mattias Svensson (Energiforsk). -
Kinematics of Machinery (R18a0307)
KINEMATICS OF MACHINERY (R18A0307) 2ND YEAR B. TECH I - SEM, MECHANICAL ENGINEERING DEPARTMENT OF MECHANICAL ENGINEERING UNIT – I (SYLLABUS) Mechanisms • Kinematic Links and Kinematic Pairs • Classification of Link and Pairs • Constrained Motion and Classification Machines • Mechanism and Machines • Inversion of Mechanism • Inversions of Quadric Cycle • Inversion of Single Slider Crank Chains • Inversion of Double Slider Crank Chains DEPARTMENT OF MECHANICAL ENGINEERING UNIT – II (SYLLABUS) Straight Line Motion Mechanisms • Exact Straight Line Mechanism • Approximate Straight Line Mechanism • Pantograph Steering Mechanisms • Davi’s Steering Gear Mechanism • Ackerman’s Steering Gear Mechanism • Correct Steering Conditions Hooke’s Joint • Single Hooke Joint • Double Hooke Joint • Ratio of Shaft Velocities DEPARTMENT OF MECHANICAL ENGINEERING UNIT – III (SYLLABUS) Kinematics • Motion of link in machine • Velocity and acceleration diagrams • Graphical method • Relative velocity method four bar chain Plane motion of body • Instantaneous centre of rotation • Three centers in line theorem • Graphical determination of instantaneous center DEPARTMENT OF MECHANICAL ENGINEERING UNIT – IV (SYLLABUS) Cams • Cams Terminology • Uniform velocity Simple harmonic motion • Uniform acceleration • Maximum velocity during outward and return strokes • Maximum acceleration during outward and return strokes Analysis of motion of followers • Roller follower circular cam with straight • concave and convex flanks DEPARTMENT OF MECHANICAL ENGINEERING UNIT – V (SYLLABUS) -
Aerodynamics of Reciprocating Engines
AERODYNAMICS OF RECIPROCATING ENGINES CONSTANTINOS VAFIDIS Dipl-Ing Thesis submitted for the degree of Doctor of Philosophy in the University of London and for the Diploma of Membership of the Imperial College Imperial College of Science and Technology Department of Mechanical Engineering December 1985 TO MY PARENTS 3 ABSTRACT The thesis is concerned with an experimental investigation of the isothermal in-cylinder flowfield in motored model and production reciprocating engines. Detailed velocity measurements were obtained by laser Doppler anemometry with emphasis on the induction flowfield, including the flow at the exit of the intake valve, and its evolution during compression. A series of steady and unsteady flow simulations of a model engine have been studied; the results established that the geometric details of the intake port/valve assembly determine the discharge capacity and velocity characteristics of the intake valve. These characteristics were not influenced by the flow unsteadiness or valve operation for an engine speed of 200 rpm but were sensitive to the valve confinement by the cylinder wall and, in extreme cases, by its proximity to the operating piston. In all cases the flowfield downstream of the valve was strongly influenced by flow unsteadiness and piston confinement. The axial flow structures generated during induction in the model engine were found to decay shortly after the closure of the intake valve with simultaneous redistribution of the intake generated turbulence which, in the absence of compression squish, decayed to intensities of less than 0.5 times the mean piston speed at TDC of compression. In contrast to the axial flow, the induction generated swirl persisted during compression with a simultaneous decay of its angular momentum by 30-50%, depending on initial swirl level, swirl velocity distribution and combustion chamber geometry. -
“Studies of Squish and Tumble Effect on Performance of Multi Chambered Piston Ci Engine”
Vinayaka Rajashekhar Kiragi, C.V. Mahesh, C.R. Rajashekhar, Naveen. P, Mohan Kumar S.P / International Journal of Engineering Research and Applications (IJERA) ISSN: 2248-9622 www.ijera.com Vol. 2, Issue 5, September- October 2012, pp.874-878 “Studies Of Squish And Tumble Effect On Performance Of Multi Chambered Piston Ci Engine” Vinayaka Rajashekhar Kiragi1, C.V. Mahesh2, C.R. Rajashekhar3, Naveen. P4 & Mohan Kumar S.P5 1,4 & 5 (P.G. Students, Thermal Power Engg, Dept of Mech. Engg. Sri Siddhartha Institute of Technology, Tumkur, Karnataka, India) 2 & 3 (Professor, Dept of Mech Engg, Sri Siddhartha Institute of Technology, Tumkur, India) ABSTRACT The primary aim is to investigate the Stroke, average turbulent kinetic energy is more at study of squish and tumble effect on performance higher engine speeds. Nagarahalli. M.V et al [2], of multi chambered piston biodiesel fueled CI conducted experiments on Karanja biodiesel and its engine. The engine is four stroke, single cylinder blends in a C.I. engine. Concluded that tests for DI diesel engine. The engine was tested for emission and performance were conducted on 4 performance by using diesel & different strokes, constant speed diesel engine said that the composition of biodiesel by varying torque with results are in line with that reported in literature by base line piston. The modification was that, three different literature and recommended 40% biodiesel chambers have been made on the piston crown at 60% diesel (B40). Deepak Agarwal et al., [3] 1200 angle to each other. Multi chamber is made to conducted experiments with esters of linseed, mahua, enhance the squish and tumble effect which in rice bran and Lome.