scholarly journals Optimasi Dimensi Connecting Rod Al2024 dan Tulangan Baja 4340 pada Kawasaki Ninja 150 R Menggunakan ANSYS

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Alfan Ekajati Latief ◽  
Nuha Desi Anggraeni
Keyword(s):  
Maximum Stress ◽  
Fuel Efficiency ◽  
Stress And Strain ◽  
Connecting Rod ◽  
Optimal Reinforcement ◽  
Steel Material ◽  
The Moment ◽  
Al 2024 ◽  
Efficiency Engine ◽  
Made In

ABSTRAKConnecting rod berfungsi menghubungkan piston ke crankshaft, sistem ini membentuk mekanisme sederhana yang mengubah gerak lurus menjadi gerak melingkar ataupun sebaliknya. Umumnya connecting rod dirancang berbenruk I agar kuat dan ringan dengan material baja. Pengurangan massa pada connecting rod dapat mengurangi momen inersia engine, meningkatkan performa dan fuel efficiency engine. Penelitian ini bertujuan untuk mendapatkan dimensi optimum connecting road menggunakan material Al 2024 dan tulangan baja 4340.Dimensi optimum harus dapat menahan tegangan dan regangan maksimum yang terjadi pada connecting rod ketika menerima beban tekan dan tarik. Penelitian dilakukan dengan melakukan varisi dimensi profil I dan bentuk tulangan dengan dimensi lain menyesuaikan spesifikasi connecting rod Kawasaki Ninja 150 R. Hasil penelitian memperlihatkan bahwa connecting rod dengan profil I, bentuk tulangan webbing merupakan tulangan paling optimal dengan ketebalan 8 mm dengan berat total 0,12 Kg.Kata kunci: connecting rod, tulangan baja, Al2024, ANSYSABSTRACTThe connecting rod serves to connect the piston to the crankshaft; this system forms a simple mechanism that converts straight motion into circular motion or vice versa. Generally, connecting rods are designed to be made in order to be strong and lightweight with steel material. Reducing the mass of the connecting rod can reduce the moment of engine inertia, improve the performance and fuel efficiency engine. This study aims to obtain the optimum dimensions of the connecting road using Al 2024 material and steel reinforcement 4340. The optimum dimension must be able to withstand the maximum stress and strain that occurs in the connecting rod when receiving compressive and tensile loads. The study was conducted by varying the dimensions of profile I and shape of reinforcement with other dimensions adjusting the specifications of the connecting rod Kawasaki Ninja 150 R. The results showed that the connecting rod with profile I, the form of webbing reinforcement was the most optimal reinforcement with a thickness of 8 mm and total mass 0,12 kg.Keywords: connecting rod, reinforcement steel, Al2024, ANSYS.

scholarly journals TECHNOLOGICAL PASSPORT STUDY PISTON AND CONNECTING ROD BARE MATERIAL AXIAL ROTARY PISTON PUMP

2020 ◽  
pp. 22-32
Author(s):  
Vasyl Muzychuk
Keyword(s):  
Heat Treatment ◽  
Flow Curve ◽  
Gaussian Function ◽  
Rolling Process ◽  
Calibration Graph ◽  
Piston Pump ◽  
Connecting Rod ◽  
Minimum Diameter ◽  
Steel Material ◽  
The Moment

A technological passport of the alloy steel material has been formed, from which a piston-connecting rod pair of an axial-rotor piston pump is made in the form of functions: flow curve, plasticity diagram, Bauschinger curve, calibration graph. Using the approximation of the neck contour by the Gaussian function at any moment of deformation of a cylindrical specimen in the supercritical region, the main parameters used in engineering calculations are related: the minimum diameter of the specimen, the current diameter of the specimen with a given coordinate, the relative (absolute) elongation and contraction with the parameters referred to the moment of rupture sample. In addition, the elongation and contraction of the sample after fracture are unambiguously associated. The approximation avoids the inconvenient and relatively expensive video filming for studying the history of deformation. It is shown that the effect of heat treatment on the mechanical properties of these steels is not the same for different stress state schemes. The tensile strengths of these steels are close as delivered. The plasticity characteristics of steel 30Kh3MFA exceed the plasticity of steel 38Kh2MYuA by 1.5 times. The flow curves of the steels under consideration have the following tendency: so the coefficient of approximation of the flow curve for 38Kh2MYuA steel in the delivery state exceeds its value in relation to steel 30Kh3MFA by 1.23 times. After heat treatment of these steels, the value of the approximation coefficient increases: for steel 38Kh2MYuA by 1.11 times, for steel 30Kh3MFA by 1.46 times. The results obtained make it possible to control the mechanics of the technological operation of rolling the piston-connecting rod pair and create a process control mechanism in order to prevent rejects during the rolling process, which manifests itself in the form of going beyond the tolerance field for the axial clearance of the piston-connecting rod pair, as well as destruction during rolling of the inner part of the piston.

Study on Stress and Strain of Anchorage Using Finite Element Method

2013 ◽  
Vol 325-326 ◽  
pp. 1314-1317
Author(s):  
Cong Sheng Chen ◽  
Ping He ◽  
Cheng Yong Wang ◽  
Xue Hui Chen ◽  
Lei Huang ◽  
...  
Keyword(s):  
Finite Element ◽  
Strain Distribution ◽  
Maximum Stress ◽  
Mechanical Response ◽  
Three Dimensional ◽  
Integrated Modeling ◽  
Stress And Strain ◽  
Steel Strand ◽  
Prestressed State ◽  
Stress And Strain Distribution

Three-dimensional integrated modeling method and the numerical simulation of elastoplastic finite element are adopted in the paper. The mechanical response of the five holes anchorage is analyzed in certain prestressed state. The stress and strain distribution information of the anchor ring, clip and steel strand is obtained respectively, and the structure safety is discussed by investigating on the maximum stress and strain.

scholarly journals Possibility to use waste tire waste in the composition of mixtures for the manufacture of cement blocks

2020 ◽  
Vol 9 (9) ◽  
pp. e69996773
Author(s):  
Maria Gabriela Araujo Ranieri ◽  
Maria Auxiliadora de Barros Martins ◽  
Patrícia Capellato ◽  
Mirian de Lourdes Noronha Motta Melo ◽  
Adilson da Silva Mello
Keyword(s):  
Water Absorption ◽  
Maximum Stress ◽  
Physical And Mechanical Properties ◽  
Laboratory Research ◽  
Structural Function ◽  
Mechanical Resistance ◽  
Fine Aggregate ◽  
Natural Sand ◽  
Waste Tires ◽  
Made In

The modern lifestyle has led to an increase in the amount of solid waste in the world, and waste tires are one of the most generated. Annually billions of tons of waste tires are produced, so in this study, we sought to reuse them to make materials for civil construction. For this, a laboratory research was carried out where samples were made in 50 x 100 mm cylinders with traces of 0, 10, 15 and 20% (by weight) of waste, in addition to cement, natural sand and water. The granulometric distribution of waste tires and sand was also carried out. And, with the samples in cylinders, the physical and mechanical properties were evaluated, such as water absorption and apparent density, in addition to the analysis of the mechanical resistance to compression and the modulus of elasticity. The results showed that the granulometric distribution of the tire residue fits as a fine aggregate, similar to the sand granulometry. The water absorption rate of the waste specimens was less than 10%. However, the mechanical resistance decreases proportionally as the amount of tire waste has increased. However, when analyzing the behavior of the stress x strain curves, the specimens containing residues, became more flexible, as they are capable of supporting loads beyond the maximum stress. In this way, the resistance and the ability to absorb energy were increased. We concluded that it is possible to incorporate certain quantities of waste tires in blocks for civil construction, but without a structural function.

scholarly journals Notas em torno do cinema militante de 1960 e 1970 / Notes on the Militant Cinema of the Sixties and Seventies

2019 ◽  
Vol 15 (1) ◽  
pp. 79
Author(s):  
Julia Fagioli
Keyword(s):  
Point Of View ◽  
The Sixties ◽  
Political Challenge ◽  
The Moment ◽  
Collective Production ◽  
Made In

Resumo: Neste trabalho buscamos realizar uma breve genealogia – sempre inacabada – acerca das formas como a política – especificamente sua dimensão militante e engajada – se manifesta no cinema, a partir de um recorte histórico que privilegia a produção militante e coletiva dos anos 1960 e 1970. Nesse período vários coletivos e iniciativas individuais surgiram em torno de um cinema engajado. Ao recuperar algumas dessas iniciativas, é possível retomar também as questões que elas abordavam, tais como o ato de delegar a câmera ao trabalhador, as relações entre as imagens filmadas num momento de urgência – o ponto de vista – e sua articulação na montagem, o modo de distribuição dos filmes militantes. Assim, percebemos o quanto esse momento de contestação política será também o de uma invenção formal no âmbito do cinema.Palavras-chave: cinema militante; cinema coletivo; contra-informação.Abstract: In this paper we seek to develop a genealogy – always unfinished – about the ways in which politics – specifically in its militant and engaged dimensions – manifests itself in cinema, throughout a historical frame that privileges the militant and collective production from the sixties and the seventies. During this period, several collectives and individual initiatives emerged regarding an engaged cinema. By recovering some of these initiatives it is possible to also recapture the issues that they addressed, such as the act of delegating the camera to the workers, the relations between the images made in moments of urgency – the point of view – and its assemblage in montage, the modes of distribution of the militant films. Therefore, we realize that the moment of political challenge will also be of formal invention in the scope of cinema.Keywords: militant cinema; collective cinema; counter-information.

scholarly journals Finite Element Analysis of Needle Insertion Angle in Insulin Therapy

2019 ◽  
Vol 16 (4) ◽  
pp. 7512-7523
Author(s):  
Syakirah Mohamed Amin ◽  
Muhammad Hanif Ramlee ◽  
Hadafi Fitri Mohd Latip ◽  
Gan Hong Seng ◽  
Mohammed Rafiq Abdul Kadir
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Insulin Therapy ◽  
Maximum Stress ◽  
Three Dimensional ◽  
Needle Insertion ◽  
Stress And Strain ◽  
Medical Doctors ◽  
Element Analysis ◽  
Biomechanical Evaluation

Millions in the world suffering diabetes mellitus depends on insulin therapy to control their blood glucose level daily. However, the painful daily injections they need to take could lead to other complications if it is not done correctly. To date, it is suggested by many researchers and medical doctors that the needles should be inserted at any angles of 90º or 45º. Nevertheless, this recommendation has not been supported by clinical or biomechanical evaluation. Hence, this study evaluates the needle insertion for insulin therapy to find the favourable angles in order to reduce injury and pain onto the skin. Finite element analysis was done by  simulating the injection of three-dimensional (3D) needle model into a 3D skin model. The insertions were simulated at two different angles, which are 45ºand 90º with two different lengths of needles; 4 mm and 6 mm. This study concluded the favourable angle for 4 mm needle to be 90º while 6 mm needle was best to be inserted at 45º as these angles exerted the least maximum stress and strain onto the skin.

Vibrations of Elastic Connecting Rod of a High-Speed Slider-Crank Mechanism

1971 ◽  
Vol 93 (2) ◽  
pp. 636-644 ◽  
Author(s):  
Peter W. Jasinski ◽  
Ho Chong Lee ◽  
George N. Sandor
Keyword(s):  
Small Parameter ◽  
High Speed ◽  
Elastic Stability ◽  
Method Of Averaging ◽  
Connecting Rod ◽  
Transverse Vibrations ◽  
Elastic Bar ◽  
The Moment ◽  
Steady State Solutions ◽  
Crank Mechanism

The research involved in this paper falls into the area of analytical vibrations applied to planar mechanical linkages. Specifically, a study of the vibrations, associated with an elastic connecting-bar for a high-speed slider-crank mechanism, is made. To simplify the mathematical analysis, the vibrations of an externally viscously damped uniform elastic connecting bar is taken to be hinged at each end (i.e., the moment and displacement are assumed to vanish at each end). The equations governing the vibrations of the elastic bar are derived, a small parameter is found, and the solution is developed as an asymptotic expansion in terms of this small parameter with the aid of the Krylov-Bogoliubov method of averaging. The elastic stability is studied and the steady-state solutions for both the longitudinal and transverse vibrations are found.

Characterization of a Composite Material Consisting of a Polyester Resin Matrix with Reinforcement of Horsemane in Flat Tissue

2020 ◽  
Vol 995 ◽  
pp. 49-55
Author(s):  
Christian G Bautista ◽  
Patricio I. Mena ◽  
Cristian A. Paredes ◽  
Marco Antonio Paredes
Keyword(s):  
Mechanical Characteristics ◽  
Sheet Steel ◽  
Resin Matrix ◽  
Matrix Resin ◽  
Biodegradable Composites ◽  
Test Pieces ◽  
Polyester Matrix ◽  
The Moment ◽  
Made In

The manufacture of mechanical components by means of biodegradable composites is the best alternative at the moment of reducing cost and weight, maintaining the mechanical characteristics. In this work the mechanical characteristics are shown as the result of combining a polyester matrix resin with a reinforcement of animal fiber such as horsehair. The results obtained correspond to mechanical characterization tests at traction, bending and impact by dart drop according to rules ASTM D3039/D3039M-17, D7264/D7264M-15 and D5628 respectively, made in four groups of test pieces of material combining a polyester matrix resin and reinforcement of horsemane. The development of materials composed of horsehair as reinforcements offers similar mechanical characteristics with traditional materials such as sheet steel or polymers, but with a considerable weight reduction, ideal for automotive applications such as bodywork or interior parts of vehicles.

A Stress and Strain Analytical Formula Applied in Low Alloy and High Strengthen Steel Material

2011 ◽  
Vol 213 ◽  
pp. 241-245
Author(s):  
Hong Wang ◽  
Yu Xian Zhang ◽  
Qing Xia Lin ◽  
Qing Hua Zhou
Keyword(s):  
Residual Stress ◽  
High Pressure ◽  
Pressure Vessel ◽  
Analytical Formula ◽  
Stress And Strain ◽  
High Pressure Vessel ◽  
Steel Material

In order to study the residual stress of the auto-frettagea super high pressure vessel effectively, a new stress and strain analytical formula is brought forward. It indicates that this analytical formula is more accurate under actual conditions for the steel applied in auto-frettagea super high pressure vessel through strict mathematical testimony. Subsequently, it describes how to establish this analytical formula and analyzes the analytical formula’s error through taking some material as an example. It illustrates that it is feasible and reliable to solve this new analytical formula basing on general tensile curves through this instance. The analytical formula is also of theoretical signification and engineering practical value in application.

Ch.3 Validity, s.2: Grounds for avoidance, Art.3.2.14

2015 ◽  
Author(s):  
du Plessis Jacques
Keyword(s):  
The Other ◽  
Retroactive Effect ◽  
General Proposition ◽  
Contractual Obligations ◽  
The Moment ◽  
Made In ◽  
Do So

This commentary focuses on Article 3.2.14 of the UNIDROIT Principles of International Commercial Contracts (PICC) concerning the retroactive effect of avoidance of a contract. Under Art 3.2.14, avoidance takes effect retroactively; that is, the contract is regarded as never having existed, and not merely as non-existent from the moment of avoidance. Unfulfilled obligations fall away and performances made in fulfilment of obligations have to be returned, according to Art 3.2.15. However, this is only a general proposition. Where avoidance only relates to certain terms of the contract, the other terms, whether fulfilled or unfulfilled, are left undisturbed, unless it would be unreasonable to do so. This commentary discusses the effect of retroactive avoidance in general, as well as its effect on contractual obligations, including unfulfilled and unaffected obligations and fulfilled obligations.

scholarly journals Control of Cherry Leaf Spot and Cherry Fruit Fly at Sour Cherry

2015 ◽  
Vol 7 (2) ◽  
pp. 250-252 ◽  
Author(s):  
Maria BOROVINOVA ◽  
Vilina PETROVA
Keyword(s):  
Chemical Treatment ◽  
Post Infection ◽  
Leaf Spot ◽  
Sour Cherry ◽  
Fruit Fly ◽  
Treatment Approaches ◽  
Cherry Leaf Spot ◽  
Cherry Orchard ◽  
The Moment ◽  
Made In

The investigations were made in the experimental sour cherry orchard from the Institute of Agriculture, Kyustendil, Bulgaria, during the period 2010-2014, in order to compare conventional and integrated sour cherry protection against cherry leaf spot and cherry fruit fly. Two variants were investigated, with two different treatment approaches for the control of cherry leaf spot and cherry fruit fly. Variant 1 – cherry leaf spot was controlled by protective treatments with dodin and tebuconazole + trifloxystrobin and cherry fruit fly was controlled by treatments with deltametrin and thiacloprid, independently of density. Variant 2 - cherry leaf spot was controlled by post-infection (curative) treatments with tebuconazole + trifloxystrobin and cherry fruit fly was controlled by treatments based on biological threshold: 10-11 cherry fruit fly females caught in traps up to the moment for chemical treatment. It was established that Blumeriella japii can be successfully controlled by post-infection treatments and by this the number of insecticide treatments was reduced. The treatments against cherry fruit fly can be avoided or reduced when the attack control is based on the biological threshold established in the studied area.

Sign in / Sign up

Export Citation Format

Share Document