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. The big end is connected to the bearing journal on the crank throw. This may cause polishing and damage to the mating surface. Connecting rod is one of the most important parts in engine assembly which transfers energy from piston to crankshaft and convert the linear, reciprocating motion. Inspecting, maintaining, and repairing connecting rods most connecting rod troubles involve either the connecting rod bearing or the piston pin bearing. Gopal et al design and analysis of assembly of piston, connecting rod and crank shaft 236 international journal of current engineering and technology, vol. Pdf design and analysis of a connecting rod for the 117kw. Pdf design of connecting rod of internal combustion engine. 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. Fem analysis of connecting rod of different materials using ansys. This survey keywords finite element analysis connecting rod by is.
The above design procedure is been adopted for the fabrication of fully automatic can crusher machine which will. It connects the piston with the crankshaft, converting linear to rotational motion fig 1. The connecting rod is required to transmit the compressive and tensile forces from the piston, and rotate at both ends. They have concentrated on the precision forging and its modified requirements on the process design and production control. Before start of validation process it is require to convert 3d generated models in to. The main function of connecting rod is to transmit the translational motion of piston to rotational motion of crank shaft. Here we explore competing processes for casting a small aluminum alloy connecting rod figure 14.
A reference book on ic engine connecting rod design by cadcae aproach barasra rajesh m. Connecting rod, analysis of connecting rod, four stroke engine connecting rod, aluminium alloy connecting rod, design and analysis of connecting rod. A connecting rod rough forging, free of lateral flash and including at least one bore initiator on the big end and on the small end, is manufactured by forging. Pdf on feb 28, 2014, venkatesh seenivasan and others published design and analysis of connecting rod with modified materials and fea. 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. A connecting rod, also called a con rod, is the part of a piston engine which connects the piston to the crankshaft. The shape of the connecting rod is to be determined to minimize its weight subject to a set of stress constraints. Introduction from a set of schematic drawings of a 4cylinder supercharged volkswagen engine a design analysis is performed to determine the stresses and hence operational safety factor of the connecting rod, using cad packages. Design optimization and analysis of a connecting rod using ansys. The proper condition of a connecting rod is fairly straightforward.
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. The structure of connecting rod was modeled utilized solidworks software. Internal combustion engine handbook basics, components, systems, and perspectives list of chapters. It is concluded that the weight of the connecting rod is also reduced by 0. The objectives of this paper are to develop structural modeling, finite element analyze and the optimization of the connecting rod for robust. Introduction a connecting rod can be of two types hbeam or ibeam or a combination of both. Connecting rod definition of connecting rod by merriamwebster. In this project the material carbon steel of connecting rod. Analysis of stresses induced in connecting rod of two wheeler engine satish wable1, dattatray s. The connecting rod cr is the main moving part and an important component of an internal com. These ideas have been mainly related to machining sequence, machine tool and new technologies for machining. This project aims at designing a connecting rod with standard dimensions of a stock one in creo 3.
It has had a significant impact on society, and is considered one of the most significant. Simple additive and multiplicative models, weighted or not. Nomenclature a cross sectional area of the connecting rod. Crackable connecting rod material selection by using. Connecting rod design a6200 reengineering the model. Design and analysis of connecting rod using forged steel. Sapat college of engineering, management studies and research, nasik 5,india. Selection of material, shape, and manufacturing process. Skirt design plays a major role in accommodating these forces in terms of durability and performance, as well as piston weight. It acts as a linkage between piston and crank shaft. A comparison of manufacturing technologies in the connecting rod industry danielle visser department of metallurgical and materials engineering colorado school of mines golden, co 80401 submission to fierf 060608 advisor. Design and analysis of assembly of piston, connecting rod and.
In this process, two notches are made on the split line for the rod and cap 180 o opposite from. A comparison of manufacturing technologies in the connecting. The big ends of the connecting rods conrods contain bearings rod bearings which ride on the offset rod journals. Project, design and fabrication of connecting rods has been a subject of number of papers.
To help distinguish between the old and new engines the. Modern manufacturing process of forged connecting rod. The connecting rod is modeled as plane stress problem using 25 quadrilateral pelements. Us5878491a process for the manufacture of a forged. A process for manufacturing a forged connecting rod of the type including a big end, a shank and a small end. Together with the crank, the connecting rod converts the reciprocating motion of the piston into the rotation of the crankshaft. International journal of science and research ijsr, india. In 2 authors elaborate advanced manufacturing systems for forging products. Design and analysis of an ic engine piston and piston rings by using three different materials 20. The rod must be straight, centertocenter rod length must meet design specs, the pin bore and bigend bore must be perfectly round, each bore must be sized appropriately for wrist pin and crank rod pin fit and oil clearance and the rod must be free. Fatigue analysis of connecting rod using finite element. Feb 17, 2008 design analysis engine connecting rod warwick shipway, mechanical engineering, year 3 17. Jawaharlal nehru technological university, kakinada, ap, india.
Fatigue strength is the most important driving factor for the design of connecting rod and it is found that the fatigue results are in good. Design of connecting rod of internal combustion engine. Design of connecting rod using design data hand book. A connecting rod basically connects the piston to the crankshaft whilst transmitting power of the combustion from the combustion chamber to rotate the crank. They are used respectively depending on their field of application or use. Engine connecting rod an overview sciencedirect topics. 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. Introduction the connecting rod or conrod connects the piston to the crank or crankshaft, in a reciprocating piston engine.
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. This process involves demanding machining operations, especially with regard to counterweight shaping and undercutting, rifledrilling main and rod. Aisc design guide 01 base plate and anchor rod design. Connecting rod optimization for weight and cost reduction. The objectives of this paper are to develop structural modeling, finite element analyze and the optimization of the connecting rod for robust design. The 2015 model year marks the first major design changes for the 5. Literature survey suggests cyclic loads comprised of static tensile and compressive loads are often used for design and optimization of connecting rods. The geometric model, finite element mesh, physical dimensions, and design. Pdf design of connecting rod of internal combustion. An optimization study was performed on a steel forged connecting rod with a consideration for improvement in weight and production cost.
Designing of connecting rod buckling piston scribd. According to such forging process of connecting rods,statistical results show that the weight tolerance is less than 4g. This thesis has been focused on the study of the connecting rod manufacturing process. The present paper attempts to design and analyze the connecting rod used in a. What is the design procedure for an connecting rod. The connecting rod is the intermediate member between the piston and the crankshaft. Steel materials are used to design the connecting rod. Selection of material, shape, and manufacturing process for a. Bedse1 1department of mechanical engineering, savitribai phule pune university gokhale education societys r. The connecting rod is under a lot of stress with every rotation. In a reciprocating piston engine, the connecting rod or connecting rod connects the piston to the crank or crankshaft. As connecting rod is subjected to stresses caused by.
Design, fabrication and analysis of a connecting rod with. Crankshaft design, materials, loads and manufacturing, by. Together with the crank, it forms a simple mechanism that converts reciprocating motion into rotating motion it is the main function of a conne. Research paper design and analysis of crankshaft for single cylinder 4stroke deisel engine. Design of crank shaft, connecting rod and valve gear. Design of piston step by step procedure machine design how to. And find the optimal solution after the theoretical calculation. Review on design and analysis of connecting rod using different. Do not damage the fracture split surface on the connecting rod or connecting rod cap while the connecting rod caps are removed. Internal combustion engine handbook sae international.
Design and analysis of connecting rod using forged steel leela krishna vegi1. Due to cap tight problem in the connecting rod, there will be loss of time for separate the cap and due to oversize of big end diameter of connecting rod there will be both wastage of time and material. This is to accommodate engine designs where the centerline of the. The outranking process will be examined in latter sections. Design and analysis of a connecting rod for the 117kw six cylinders turbocharged diesel engine. The connecting rod bearings installed in m3 coupeconvertible vehicles produced from february 2001 through may 2003. Introduction connecting rod is an integral component of internal combustion engine. Pdf design and analysis of connecting rod with modified. 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 connecting rod for high speed. A reference book on ic engine connecting rod design by cad. Parting edge where cap and the rod meet is fractured. Here stainless steel, aluminum alloy and high strength carbon fiber 280gsm bidirectional are used to analyze the connecting rod. Jun 20, 2015 an overview on different manufacturing processes of connecting rod.
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. Together with the crank, they form a simple mechanism that. 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. Weight reduction was achieved by using an iterative procedure. In modern automotive internal combustion engines, the. You can avoid these troubles by performing proper maintenance procedures and by following instructions in the manufacturers service manual. High factor of safety is provided as the failure of the connecting. Download as docx, pdf, txt or read online from scribd. While working with the rods, do not set the connecting rod or rod cap on the fracture split connection. The internal combustion engine was conceived and developed in the late 1800s. Design procedure for connecting rod being one of the most integral parts in an internal combustion engines design, the connecting rod must be able to withstand tremendous loads and transmit a great deal of power. In this video derive theexpressions design of connecting rod. If the big end of the connecting rod features a larger chamfer on one side, this side must be installed facing the crankshafts journal radius fillet. In this in order to have a connecting rod equally strong in buckling about both the axis, the buckling loads must be equal.
This paper presents the design connecting rod of internal combustion engine using the topology optimization. A connecting rod is one of the most mechanically stressed components in internal combustion engines. In a reciprocating piston engine, the connecting rod. The next section briefly describes topsis method notations. Jan 11, 2018 a connecting rod is a shaft which connects a piston to a crank or crankshaft in a reciprocating engine. Connecting rod manufacture is a high volume, price sensitive application with strict performance, design and durability requirements. Connecting rod definition is a rod that transmits motion between a reciprocating part of a machine such as a piston and a rotating part such as a crankshaft. Nov 25, 2016 you will definitely understand how to solve examples of design of piston must watch our next video on trial and error method it is very very important video. Its primary function is to transmit the push and pull from the piston pin to the crank pin, thus converting the reci procating motion of the piston into rotary motion of the crank. Sep 19, 2016 aisc design guide 01 base plate and anchor rod design 2nd ed. Design and analysis of connecting rod using forged steel ijser. Often metal improvement processes, such as shot peening. Stl file format to import the models into the analysis tool deform 3d. Inspecting, maintaining and repairing connecting rods.
Refer chapter 25 from the book, design of machine elements by v. The step by step procedure for designing of the connecting rod using design data hand book design data hand book by mahadevan. The function of the connecting rod also involves transmitting the thrust of the. Connecting rod is highly stressed component, as it is subjected to the cyclic dynamical tensile and compressive loads.
Well be seeing more and more of these applications from the oem side. So we do some study on the design and manufacturing process of connecting rod to. The rod must be straight, centertocenter rod length must meet design specs, the pin bore and bigend bore must be perfectly round, each bore must be sized appropriately for wrist pin and crank rod pin fit and oil clearance and the rod must be free of. Powdered metal pressed together and then put into an oven where it is sintered that means granuals are melted together and forms the rod. Being one of the most integral parts in an internal combustion engines design, the connecting rod must be. A connecting rod is a shaft which connects a piston to a crank or crankshaft in a reciprocating engine. The computeraided design cad files and all associated content. Pdf design and analysis of a connecting rod for the.
In a reciprocating piston engine, the connecting rod connects the piston to the crank or crankshaft. The analysis of the scania line together with a benchmark among different leading companies on the connecting rod manufacturing has been undertaken. Designing of connecting rod free download as word doc. Design and analysis of connecting rod using forged steel leela krishna vegi1, venu gopal vegi2. Design a fourcylinder internal combustion engine project. Connecting rods link oscillatory motion to rotary motion in ic engines, and rotary to oscillatory motion in pumps.
In this paper, analysis and study connecting rod machining process, through the improvement plan, ensure the accuracy of the important parts of the. Its primary function is to transmit the push and pull from the. Connecting rod t he proper condition of a connecting rod is fairlystraightforward. The procedure adopted in determining the above mentioned dimensions is. Solution of manufacturing defects in connecting rod. The introduction of piston cooling nozzles in al engines provides scope for eliminating the oil hole in the connecting rod and thereby reducing the size of the i section.
Connecting rod caution on 19972017 cummins isxqsx 15. A comparison of manufacturing technologies in the connecting rod industry danielle visser. 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. The rod must be straight, centertocenter rod length must meet design specs, the pin bore and bigend bore must be perfectly round, each bore must be sized appropriately for wrist pin and crank rod pin fit and oil clearance and the rod. Design and structural analysis of connecting rod irjet. The connecting rod rough forging is sized, contentwise, by plating the connecting rod rough forging between two inserts. National conference in mechanical engineering research and postgraduate studies 2 nd ncmer 2010 34 december 2010, faculty of mechanical engineering, ump pekan, kuantan, pahang, malaysia.
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