The big end is connected to the bearing journal on the crank throw. Design and analysis of assembly of piston, connecting rod and crank. In the point of view that location of the cg point of connecting rod lies more towards the big end. Connecting rod is one of the most important parts of the unit and affects the performance of the compressor. The connecting rod is used to translate the rotating motion of electric motor to the oscillatory motion of the piston. In this study, the mechanisms that cause bush loosening and rotation failure were studied on the connecting rod small end of a highpowerdensity engine. The most critical sections of connecting rod are determined based on mechanical strength.
Calculation and study of the failure of the connectingrod. Design of connecting rod a connecting rod is a machine member which is. The predecessor to the connecting rod is a mechanic linkage used by water mills to convert rotating motion of the water wheel into reciprocating motion. Sapat college of engineering, management studies and research, nasik 5,india. In this in order to have a connecting rod equally strong in buckling about both the axis, the buckling loads must be equal. Since 2016 roddesign provides rod building equipment via online shop to the rod builders in europe. Connecting rod of two wheeler 100 cc petrol engine is taken for the analysis, finite element analysis includes the design and modeling of connecting rod using creo 2. The deformation of that part of the big end, however, has an important effect and must be taken into account. A con rod for a modern passenger car engine has been studied to.
Tension and compression analysis in reciprocating engine. Design calculations pressure calculations specifications of the engine table 1 engine specs. N connectingrod length ln mm figure 2 articulatedtype connectingrod details of crankshaft material. Bedse1 1department of mechanical engineering, savitribai phule pune university gokhale education societys r. Dynamic analysis of the connecting rod is similar to dynamics of the crankshaft, since these components form a slidecrank mechanism and the connecting rod motion applies dynamic load on the crankpin bearing. Calculations for internal combustion engine crankshafts. This is the autocad model for the connecting rod part 1 of the engine as per tutorialguide from the aykut dana sir. Design of connecting rod for high speed application in ic engine using two different materials likes aluminum and aluminum alloy alfasic and also mentions the its mechanical properties which are required for design of connecting rod. Together with the crank, the connecting rod converts the reciprocating motion of the piston into the rotation of the crankshaft. Calculation of big ends of connecting rods springerlink.
Most major damage to the compressors is caused by rod load. Kinematics and load formulation of engine crank mechanism. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. The objectives of this paper are to develop structural modeling, finite element analyze and the optimization of the connecting rod for robust. Connecting rod is integral part of internal combustion engine. Reciprocating compressor piston rod load principle and. The present work has been established to replace the existing connecting rod made of forged. August 8, 20 department of mechanical engineering kate gleason college of engineering. Slider crank mechanism for demonstration and experimentation. India abstract the main objective of this study is to explore weight and cost reduction opportunities in the design and production of a connecting rod. Design and analysis of assembly of piston, connecting rod and. In this study, the mechanisms that cause bush loosening and rotation failure were studied on the connectingrod small end of a highpowerdensity engine. The fact that forgings produce blowhole free and better rods gives them. Design and analysis of connecting rod for high speed.
Slider crank mechanism for demonstration and experimentation page 4 design description objective the objective of this mqp is to fabricate a working model of a slider crank mechanism that demonstrates the associated motion and provides means to measure kinematic properties, dynamic forces and cylinder pressure in various states of balance. Connecting rod optimization for weight and cost reduction. A connecting rod, also called a con rod, is the part of a piston engine which connects the piston to the crankshaft. Design and analysis of 150cc ic engine connecting rod. In a reciprocating piston engine, the connecting rod or connecting rod connects the piston to the crank or crankshaft.
The proposed method of calculation of the stress distribution in the big end of a connecting rod of the type here considered gives satisfactory results. Pdf analysis and optimization of connecting rod with different. Where there are cranks of different geometrical configurations in one crankshaft, the calculation is to cover all crank variants. Design of connecting rod a engine specifications engine type air cooled 4stroke bore. Balancing of rotating and reciprocating systems in engine. From these free body diagrams, we can apply newton. Design and analysis of assembly of piston, connecting rod and crank shaft. Its primary function is to transmit the push and pull from the piston pin to the crank pin and thus convert the reciprocating motion of the piston into rotary motion of the crank. Dnvglcg0037 calculation of crankshafts for reciprocating.
In this project the material carbon steel of connecting rod. Design and analysis of connecting rod using forged steel ijser. Design and analysis of assembly of piston, connecting rod. It is no surprise that a failure in a connecting rod can be one of the most costly and damaging failures in an engine. Internal combustion engine handbook basics, components, systems, and perspectives. In the work presented here, a connecting rod is modeled numerically for a 4cylinder, 4stroke diesel engine. Now a day, the main problem in the field of design and development of ic engine is concerned with reducing fuel consumption and specific power output. It is a pin jointed strut in which more weight is concentrated towards the big end. Weight reduction, genetic steel, detailed load analysis, design optimization, comprising tensile load. Each cad and any associated text, image or data is in no way sponsored by or affiliated with any company, organization or realworld item, product, or good it may purport to portray. This paper presents the design connecting rod of internal combustion engine using the topology optimization. Here stainless steel, aluminum alloy and high strength carbon fiber 280gsm bidirectional are used to analyze the connecting rod.
Analysis and optimization of connecting rod used in heavy. Then we consider the forces and moments that arise as consequences of motions of these dynamic equivalences. Connecting rod design a6200 reengineering the model. Nomenclature a cross sectional area of the connecting rod. Roddesign was founded 2008 as rod building business in city of dusseldorf germany from ingo pelz. Design and analysis of an ic engine piston and piston rings by using three different materials 20. Material design for advanced connecting rod for mass. Sathiamurthi department of mechanical engineering, jyothi engineering college, kerala, india department of mechanical engineering, kongu engineering college, tamil nadu, india abstract the main objective of this study is to explore weight. Fatigue analysis of connecting rod using finite element. The connecting rod should be highly durable and efficient. Design and analysis of connecting rod using forged steel leela krishna vegi1. The connecting rod is under a lot of stress with every rotation. Fem analysis of connecting rod of different materials. A reference book on ic engine connecting rod design by cadcae aproach barasra rajesh m.
Figure 2 shows the first stage of the process to find a dynamic equivalence for the original real reciprocating system. Material design for advanced connecting rod for mass optimizationdesign for light weight connecting rod dnyandeep k. The optimization procedure they developed was based on the 2d approach. Principles of calculation the design of crankshafts are based on an evaluation. Fatigue analysis of connecting rod using finite element analysis 789 the stress at any point on the connecting rod at this axial load can be interpolated from the axial stress analysis results. Design and analysis of a connecting rod for the 117kw six cylinders turbocharged diesel engine. The structure of connecting rod was modeled utilized solidworks software. Connecting rod, analysis of connecting rod, four stroke engine connecting rod, aluminium alloy connecting rod, design and analysis of connecting rod. Fem analysis of connecting rod of different materials using ansys.
Being one of the most integral parts in an engines design, the connecting rod must be able to withstand tremendous loads and transmit a great deal of power. Jawaharlal nehru technological university, kakinada, ap, india. The connecting rod is required to transmit the compressive and tensile forces from the piston, and rotate at both ends. Design and analysis of connecting rod using forged steel. Modern optimized design analysis of connecting rod of an engine. Design and construction of a reactive type muffler for a formula. Sep 07, 2019 in this article, we will see the reciprocating compressor piston rod load principle and calculation method. Selection of material, shape and manufacturing process for a connecting rod abstract this activity centers on the courses of strength of materials and production design offered at a sophomore level mechanical engineering curriculum. Pdf design of connecting rod of internal combustion. Analysis of connecting rod bearing design trends using a. If the rod load exceeding the recommended rod load ie. Design and analysis of connecting rod using forged steel leela krishna vegi1, venu gopal vegi2.
Connecting rod calculations chemistry building engineering. The decisive alternating values will then be calculated according to. In this article, we will see the reciprocating compressor piston rod load principle and calculation method most major damage to the compressors is caused by rod load. This thesis has been focused on the study of the connecting rod manufacturing process. A reference book on ic engine connecting rod design by cad. Design optimization and analysis of a connecting rod using ansys. Pdf design and analysis of a connecting rod for the 117kw.
The connecting rod is the intermediate member between the piston and the crankshaft. Stress analysis of connecting rod for weight reduction a. This paper presents the design connecting rod of internal combustion engine. The connecting rod is mainly constitutes of ibeam, small end, big end, bolt etc. If connects reciprocating piston to rotating crankshaft, transmitting the thrust of the piston to crankshaft. The connecting rod cr is the main moving part and an important component of an internal com. Modern optimized design analysis of connecting rod of an. Analysis of connecting rod bearing design trends using a mode. Since the piston is the main reciprocating part of an engine. Figure 1 shows a generic model of the connecting rod and highlights its details. Crank end and piston end forces as a function of crank angle for this connecting rod at the maximum engine speed of 5700 revmin are shown in. Join 5,080,000 engineers with over 3,040,000 free cad files join the community. But, before inducing the truss member, basic design calculation will be used to derive the constant and varying design parameters 3.
The fact that forgings produce blowhole free and better rods gives them an advantage. The proposed method of calculation allows for the effect of radial clearance in the bigend bearing, by varying the angle subtended by the. Selection of material, shape, and manufacturing process. Connecting rods ibeam connecting rod beam style free. The use of a simplified model of a big end assumed to be rigidly clamped at its upper portion, does not allow that part to work under load. Pdf 4stroke motorcycle connecting rod analysis under work.
The analysis of the scania line together with a benchmark among different leading companies on the connecting rod manufacturing has been undertaken. And find the optimal solution after the theoretical calculation. Since 2016 roddesign provides rod building equipment via. Helpful engine calculators we have consolidated some of our most helpful calculators into a single downloadable ms excel spreadsheet. A discussion of the various loads used to rate reciprocating compressors k. Finite element analysis of ic engine connecting rod by ansys r a savanoor1, abhishek patil2, rakesh patil3 and amit rodagi2 corresponding author. Every vehicle that uses an internal combustion engine requires at least one connecting rod depending upon the number of. Rules for classification and construction vi additional rules and guidelines. Tension and compression analysis in reciprocating engine connecting rods. Material used to manufacture connecting rod in mass. A connecting rod is one of the most mechanically stressed components in internal combustion engines. Rules for classification and construction vi additional.
The objective of the present work is to design and optimize a connecting rod based upon its material properties by using connecting rod of different materials. Currently existing connecting rod is manufactured by using carbon steel. Every vehicle that uses an internal combustion engine requires at least one connecting rod depending upon the number of cylinder in the engine. The objectives of this paper are to develop structural modeling, finite element analyze and the optimization of the connecting rod for robust design. Internal combustion engine handbook basics, components, systems, and perspectives list of chapters. Design of the big end and of connecting rod and of the bigend bolts in russian, energomashinostroenie, no. Jun 20, 2015 an overview on different manufacturing processes of connecting rod. Pdf the main objective of this work was to explore weight reduction.
Blais a thesis submitted in partial fulfillment of the requirements for the degree of masters of science in mechanical engineering approved. Steel materials are used to design the connecting rod. Pdf design and analysis of a connecting rod for the. Analysis of connecting rod bearing design trends using a modebased elastohydrodynamic lubrication model by travis m.
Connecting rod calculations free download as word doc. Pdf design of connecting rod of internal combustion engine. As the assembly will be working under high temperatures, thermal analysis also has to be done. This spreadsheet is temporary until we have online calculators built into the website, which will require no special software. Pdf design and analysis of a connecting rod for the 117kw six. Pdf design and analysis of connecting rod using forged steel.
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