Design and Stress Analysis of Single Girder Jib Crane (original) (raw)
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IJERT-Design and Stress Analysis of Single Girder Jib Crane
International Journal of Engineering Research and Technology (IJERT), 2015
https://www.ijert.org/design-and-stress-analysis-of-single-girder-jib-crane https://www.ijert.org/research/design-and-stress-analysis-of-single-girder-jib-crane-IJERTV4IS090682.pdf Abtract-Present work has been undertaken in order to ensure the smooth functioning of the jib crane in various areas. In general the jib crane requires at least two times maintenance in a year. The present work has been taken to reduce the servicing required and to ensure smooth functioning without any breakdown through analyzing of various parameters on beam sections MB150, MB125, MB100 and 140*80 rectangular sections. Comparative analysis is carried out by using analytical and FEM approaches on the beam. It has been found that the I section beam MB150 is most suitable and safe in the working load range of 1000kg.This study aims at stress analysis of single girder wall mounted jib crane of following specification: i. load carrying capacity 1000 kg, ii. span length 2.5 m iii. swing range 180 degrees
Solid Modelling and Finite Element AnalysisofEOT Crane Girder
The design of an overhead crane with a double box girder has been investigated and a study of a crane with 10 ton capacity and 12 m span length has been conducted. It is not possible for the real experimental studies to take into consideration the influence of the connections between the main beams and the rest parts of the construction, the influence of the longitudinal and transverse ribbings as well as the influence of the supports on the overall stressed state of the construction. Moreover, the researches that use for the majority of the test cases different strain measurements turn out to be quite hard and expensive. All these problems could be solved successfully by the use of computer modelling procedures. It is possible to perform 2D or 3D computer studies. The 2D computer studies give idea of the planar behaviour of the construction and lack the opportunity of showing the influence of supports or the connections of the construction. It is only the 3D models that could satisfy all the requirements for examining the general stressed state of the carrying metal construction. With regard to this, the creation of 3-D models for researching and analysing the behaviour of an overhead crane, becomes the main goal of the present work In the initial phase of the study, conventional design calculations proposed by Indian Standard Rules were performed. The crane design was modelled with solids Loads and boundary conditions were applied to solid model. Assign material to the solid model. Finite Element meshes were generated from the solid model. After a comparison of the finite element analyses, and the conventional calculations, the analysis was found to give the most realistic results. As a result of this study, a design optimization method for an overhead crane is proposed.
MODELLING AND STRESS ANALYSIS OF COLUMN BRACKET FOR ROTARY JIB CRANE
In this paper, the method of final designing of column Bracket and boom for Material handling jib crane system. The basic functions are determined for certain parameters of jib cranes as yield strength, deflection of column Bracket and boom using stress analysis, displacement analysis. A requirement for movement of heavy loads which are correspondingly difficult. Jib crane is design, analyze and develop from three most prevalent material handling devices. They are Tower jib crane, free standing Jib crane and jib crane with trusses. Among them the best design, higher strength and greater life span crane has to be designed for future work. During the column Bracket and Boom analysis, the Solid Works and COSMOS is used the analysis is carried out in two load steps. The total analysis time is approximately twenty two hours taken by the software.
Numerical Structural Analysis of a Single Girder Crane According to Standard NBR 8400
The use of cargo handling equipment in the industry in general is extremely important for logistics, since their contribution in receipt of material, until the production stages. Since they are subjected to severe mechanical stress, it is necessary for them to resist to these loading. This work aims to verify the structural integrity of a single girder crane designed by “ARPI Engenharia”, according to standard NBR 8400. In order to evaluate the crane structure and compare the mechanical stresses with NBR 8400 yield stress, a 3D model was created in the software Ansys Workbench 17.2 and analyzed through the Finite Element Method. This is one of the most widely used methods by Engineers in order to design or solve engineering problems. This paper shows the solution of the static analysis, presenting the stress outputs from Ansys Workbench 17.2.
Tower cranes are used at construction site. Tower crane jib is suspended beam which carries load moving along the jib. While designing components need to design crane hook & snatch block assembly, wire ropes, moving trolley, tie rods, jib, counterweight side, mast, slewing ring. We selected jib for analysis since we wanted to validate the use of ANSYS (FEM method) for structural design of Tower Crane Jib. Jib model was generated in ANSYS 14.5 workbench and further analyzed in the same. Two models of Tower Crane jib were compared initially for axial force and deformation developed in members of the jib and the better model was selected for further analysis. Throughout the analysis, the load has been applied at the end of the jib of the tower crane to generate maximum moment and stresses in the jib. Initially the results of ANSYS 14.5 were validated using analytical method for the jib (Method of sections for trusses). Later, the results for static as well as dynamic analysis are obtained. In static analysis, crane’s self weight, payload, hook weight, trolley weight and wind loading are considered whereas acceleration, braking, and angular velocity are considered in dynamic analysis.
Analytical Calculation And FEM Analysis Main Girder Double Girder Bridge Crane
2017
The cranes are now not replaceable mode of transport of materials and finished products both in production halls and in the open space. This paper made the whole analytical calculation of double girder bridge cranes to be used in laboratories exclusively for testing, determined by the maximum bending stress and deflection of the main girder. After calculating the dimensions, we created a model cranes in software CATIA V5. The same model was subjected to FEM analysis of the same name software. At the end of the paper comparison has been done. The objective of the calculation and analysis of the model was to develop a model crane and to serve for the next tests. Dimensions of the crane are given according to the laboratory where it will be located.
Design optimization of box type girder of an overhead crane
Iranian Journal of Science and Technology: Transactions of Mechanical Engineering
Double bridge girder overhead cranes are used for heavy duty applications in the industry. In this paper a detailed parametric design optimization of the main girder of box type is performed for a 150Ton capacity and 32m long span crane, after its basic design using available design rules. Design optimization is performed using detailed 3D finite element analysis by changing the number, shape and location of horizontal stiffeners along the length of the girder and number and location of stiffeners along the vertical direction to control any possible buckling, with minimum possible weight and for safe stress and deflection. Optimization is performed in two steps. In the first step, keeping plates thickness constant different types and number of stiffeners are added and optimized geometry is found. In the second step, the best geometry of the first step is further optimized for maximum allowable bending stress by changing thickness, height and width of the box girder with minimum possible weight. Effect of added stiffeners is highlighted in controlling its buckling.
Finite Element Analysis of 450T Eot Crane Box Girder
International Journal of Advance Engineering and Research Development, 2015
FEA(finite element analysis) of double box girder has been done in this paper and a comparative study of results of finite element analysis and analytical calculation of a crane with 450 ton capacity and 27.2 m span length has been conducted. It is not possible for the real experimental studies to take into consideration the influence of the connections between the main beams and the rest parts of the construction, the influence of the longitudinal and transverse ribbings as well as the influence of the supports on the overall stressed state of the construction. Moreover, the researches that use for the majority of the test cases different strain measurements turn out to be quite hard and expensive. All these problems could be solved successfully by the use of computer modeling procedures. With regard to this, the creation of 3-D models for researching and analyzing the behavior of an overhead crane box girder, becomes the main goal of the present work. In the initial phase of the study, conventional design calculations proposed by Indian Standard Rules are performed. The crane design is modeled with solids, Loads and boundary conditions are applied to solid model. Assign material to the solid model. Finite Element meshes are generated from the solid model. After a comparison of the finite element analyses, and the convention al calculations, the analysis is found to give the most realistic results. As a result o f this study, a design of an overhead crane box girder is within the permissible limit as per Indian standards.
Design and Analysis of Column Mounted JIB Crane
In this work, a static, modal and harmonic analysis of a column mounted jib crane using ANASYS software is presented. A column mounted jib crane of 1.5 Ton capacity is modelled using CATIA which is imported into ANASYS where calculations are performed. The detailed drawing of various parts of the crane is obtained from TATA Advanced systems Ltd (TASL) Adibhatta village, Hyderabad. The deflection values, Von Misses stress etc are obtained using the static analysis. The hand calculations of the column mounted jib crane have been done using simple strength of material expressions. The deflection is obtained as 3.709mm, when the load applied is 1.5 tons. The maximum stress obtained is 147.8Mpa which is less than the allowable stress. The static stress was found to be within the limits of safety. The model analysis shows the natural frequencies of the crane to be in the lower range 0-10Hz. The fundamental frequency is found out to be 0.323589 Hz. All the other higher frequencies are also found to be very low making the jib crane less stiff and highly stable for any transient loading. The harmonic analysis is performed with a view to predict the performance of the crane if a cycle time dependent load is allowed to act at the trolley. For this hypothetical situation, the von-mises stress and displacement along the z-directions were obtained using ANSYS. The maximum von-Mises stress of 60Mpa occurs at fundamental frequency of 1 Hz. The maximum z-direction displacement of 5mm was observed. These values indicate that the column mounted jib crane is safe to operate under the load of 1.5 Tons under static and cyclic time dependent loads also Keywords: JIB CRANE, ANSYS, CATIA.