Finite element stress analysis of crane hook with different cross section. Hooks are employed in heavy industries to carry tonnes of loads safely. In this paper work is carried out on hook of any heavy crane. These hooks have a big role to play as far as the safety of the hoist loaded is concerned.
The contribution deals with a fullfield stress analysis of the crane hook model. Failure of a crane hook mainly depends on three major factors i. Stress analysis by using analytically for 20 kn loading condition. Static analysis of crane hook with tsection using ansys. Solidworks simulation static analysis of crane hook youtube.
The investigation was realized using numerical as well as experimental analysis. By predicting the stress concentration area, the shape of the crane is modified to increase its working life and reduce the failure rates. After optimizing the cross section crane hook the approach turned towards the material saving during manufacturing of of crane hook. A schematic layout of one possible configuration of the crane. The three dimensional model of the crane hook for three cross sections is shown in the figure 2. The objective of this work is to carry out computer aided design and analysis of hook. Crane hook is a curved beam 2 and is widely used for industrial and construction work site for lifting loads by cranes. The stress distributions in the hook were obtained, and the critical stress points were identified. Hence continuous use of crane hooks may increase the magnitude of these stresses and ultimately result in failure of the hook. Feb 27, 2017 design stress analysis of crane hook 1. To study the stress pattern of crane hook in its loaded condition, a. This may causes structural failure of the crane hook.
To study the stress pattern of crane hook in its loaded condition, a solid. Under that crane hook is the one to explain the process of topology optimization, the trapezoidal crosssectional area of crane hook is created in catia v5 software and apply fea method, stress induced because of deflection in the model. As strain increases, viscoelastic deformation processes appear. Crane hook is a prominent component used for lifting the loads. It is found that finite element analysis can provide important detailed stress distributions and limits for safety verification of lift components. The numerical crane hook model was created due to stn 27 1902 norm 6. Stresses are calculated in various regions of the crane hook material by assuming crane hook as a straight beam and curved beam. For material saving the maximum stress region is to be identified by using fem analysis and then material is removed by considering the maximum bending stress at failure point. In this study, stress analysis is implemented on the hook of din 15 401 3. With more and more industrialization the rate at which these hooks are forged are. The stress distribution determined for the case of plane stress by the exact method consists in a system of direct stresses in the radial and circumferential directions together with the accompanying shear. Crane is subjected to continuous curved beam formula and the normal beam formula reduces. In this analysis the material properties of hook kept constant throughout the analysis and stress is to be reduced by varying different geometric parameters.
Abstract crane hook is very significant component used for lifting the load with the help of chain or wire ropes. Crane hooks are highly liable components and are always subjected to failure due to the amount of stresses concentration which can eventually lead to its failure. To study the stress pattern of crane hook in its loaded condition, a solid model of crane hook is prepared with the help of cmm and cad software. After optimizing the cross section of crane hook the approach turned towards the material saving. In numerical analysis, the software based on finite element method was used. Shridhar professor department of mechanical engineering, nie, mysore excess loading impurities stress risers thermal stresses crane hook calculation nomenclature. Torsion analysis of steel members,3 will be of value in torsion investigations. Student 2professor and head 1,2department of mechanical engineering 1,2dypiet, pimpri,pune abstractthe structural strength is the key index to response the load bearing ability of the elevating equipment. That means that the primary unknown will be the generalized displacements. Crane hooks are highly liable components and are always subjected to failure due to accumulation of large amount of stresses which can eventually lead to its failure.
Hence continuous use of crane hooks may increase the magnitude of these stresses and eventually result in failure of the hook. Crane hooks are highly liable components and are always subjected to failure due to accumulation of large amount of stresses which can eventually. All of gorbels cranes are designed for deflection, as well as for stress, which minimizes bounce, deflection, and the effort required to move a trolley. A 5000 lb load is placed at the center of the radius and center of the thickness of a crane hook with a rectangular cross section. Fullfield stress analysis of a crane hook model performed. Stress analysis of crane hook by shreevathsa h k on prezi. Afterwards, the stress analysis of the crane parts are accomplished with ansys software considering the cranes self weight, payload, hook weight, trolley weight and the dynamic loads. Pdf stress analysis of crane hook and validation by. Rashmi uddanwadikerin 3 discussed on stress analysis of crane hook and validation by photoelasticity. Real time pattern of stress concentration in 3d model of crane hook is obtained. Optimum stress analysis of crane hook with the help of. Design of a crane hook of different materials and stress analysis using ansys workbench abhijit devaraj1 1department of mechanical engineering, bms college of engineering bangalore, india abstract. Pdf stress analysis of crane hook and validation by photo. A project presentation on design and stress analysis of crane hook submitted to university of mumbai in partial fulfillment of the requirement for the degree of bachelor of engineering mechanical submitted by 1.
The geometry is created in another software such as solidworks or creo which must be saved in step format and imported in ansys workbench. Determination of stress distribution in crane hook by. The model of hook is prepared in cae software having dimension and material similar to the crane hook which was purchased from market. It is then extruded to 6 mm to form a 3d model of hook. Stress analysis with autodesk inventor simple basic tutorial. A lifting hook is a device for grabbing and lifting loads by means of a device such as a hoist or crane. Static analysis of crane hook with isection using ansys.
Afterwards, the stress analysis of the crane parts are accomplished with ansys software considering the crane s self weight, payload, hook weight, trolley weight and the dynamic loads. The inverted lifting beam enables the cranes to share the load. A lifting beam can also be used as a strong back to provide multiple lifting points on a relatively flexible object see fig. Area of cross section, material and radius of crane hook are. Citeseerx document details isaac councill, lee giles, pradeep teregowda. The stress distribution pattern is verified for its correctness on an acrylic model of crane hook using shadow optical method caustic method set up. Mar 07, 2016 for a more definite result of a readytoproduce report, you must create and analyze where it should be to place or select a spot on the part that actually gets force, gravity, and other factors. Static analysis of crane hook with i section and t section. The finiteelement structural analysis method was used in a twodimensional stress concentration analysis of a new pylon hook for carrying the x38 lifting body atmospheric drop test vehicle on the b52 carrier aircraft. All other items of interest will mainly depend on the. At this point load is carried with the help of a hook. Crane hooks are one of the important components which are used to transfer materials having heavy loads, mainly in industries.
Area of cross section, material and radius of crane hook are the design parameters for crane hook. Cranes are industrial machines that are mainly used. Torres et al worked on the causes which led to failure of the crane hook in service. The finite element analysis of crane hook shows that stress concentration rises at inner surface of the throat 34. In many unreinforced thermoplastics, it is not even possible to demonstrate by way of stress strain experiments the existence of a range in which hookes law is obeyed. Static analysis of crane hook with i section and t.
Thus, a compound materialdistribution is modeled using two materials. Stress analysis of crane hook with different cross. The cad modeling and finite element analysis is done in catia v5r20. A crane hook is a device used for lifting up the loads by means of a crane. Stress analysis of b52 pylon hooks for carrying the x31. The design parameters for crane hook are area of cross section, material and radius of crane hook. Jan 10, 2018 the geometry is created in another software such as solidworks or creo which must be saved in step format and imported in ansys workbench. On the other hand, the eye should always be used on a hook or pin with at least the nominal diameter of the ropesince applying the dd ratio shows an efficiency loss of approximately 50% when the relationship is less then 11. Determination of stress distribution in crane hook by caustic. By considering optimization result of the crane hook it clearly shows the stress is minimum in. Crane hook is a reliable lifting component being used in industries.
Governing theory the strategy utilized as a part of the geometric simulations of. All the above mentioned failures may be prevented if the stress concentration areas are well predicted and some design modification to reduce the stresses. To study the stress pattern of crane hook in its loaded condition, a solid model of crane hook. Research article open access topology optimization and. The dimensions see figure 5 and rectangular shape of its section were adapted to the purpose to perform an experimental stress analysis in laboratory conditions of authors workplace. A crane is subjected to continuous loading and unloading. Torsion analysis of steel members,3 will be of value in. Crane hook, ansys, curved beam, stress, winklerbach theory. Stress analysis plays an important role in the design of structures like crane hook under loading conditions. Rashmi uddanwadiker stress analysis of crane hook and validation by photoelasticity 7 rasmi uddanwadikar, stress analysis of crane hook and validation by photoelasticity in scientific research, 2011, issn 935941 8 advanced mechanics of materials, by a. The created solid model is imported in ansys for stress analysis. Crane drawing, design work and stress analysis rhc lifting limited uses the latest autodesk 3d inventor professional software for the design and stress analysis of all our structures. Stress analysis of crane hook and validation by photoelasticity.
Finite element analysis and fatigue analysis of crane hook. To study the stress pattern of crane hook in its loaded condition, a solid model of crane hook is prepared with the help of ansys 14 workbench. Stress analysis of crane hook with different cross section. Structure failure of crane hook occurs because of the stress induced due to repetitive loading and unloading conditions. Design and analysis of crane hook with different materials. The hook was tested on the utm machine in tension to locate the area having maximum stress and to locate the yield point. Fullfield stress analysis of a crane hook model performed by.
To minimize the failure of crane hook, the stress induced in it must be studied. Optimum stress analysis of crane hook with the help of finite element tushar hire1, dr. Crane hooks are highly liable components and are always subjected to failure due to accumulation of large amount of stresses which can eventually lead to its. Stresses of different mass crane hook trap 2 at constant load 3.
Pdf crane hooks are highly liable components and are always subjected to failure due to accumulation of large amount of stresses which can eventually. Bending stress and tensile stress, weakening of hook due to wear, plastic deformation due to overloading, and excessive thermal stresses are some of the other reasons for failure. To study the stress pattern of crane hook in its loaded condition, a solid model of crane hook is prepared with the help of abaqus software. Solidworks simulation static analysis of crane hook karthik r. A crane hook plays an important role for material handling from small to large industries. The design process of crane hook and the analysis process of crane hook using the alloy 1. It is found that t cross section yields minimum stresses at the given load of 6ton for.
The stress concentration factors were widely used in strength and durability. Pdf optimization and fatigue analysis of a crane hook using. Stress analysis of crane hook and validation by photo. Design, analysis and weight optimization of crane hook. Crane hooks are the components which are used to lift the. For the stress analysis of the acrylic model of crane hook the outer geometry or profile of the model is drawn in abaqus. Dimensions of crane hook the various dimensions for crane hook are taken as follows. As this ratio increases, the to minimize the failure of crane hook 3, the stress induced difference between the maximum stress calculated by in it must be studied. International journal for research in applied science.
Crane hooks are highly liable components and are always subjected to bending stresses which leads to the failure of crane hook. By predicting the stress concentration area, the shape of the. At first point of crane boom the load applied is 20 kn. For economic design, x should be as minimum as possible.
All the above mentioned failures may be prevented if the stress concentration areas are well predicted and some design modification to reduce the stresses in these areas. Some lifting beams are made with a bottom lug aligned directly below the top lug so that, if the need. Designs are carried out to the highest standard and tailored to suit the customers needs for any application. Shreevathsa h k 4ni10me101 viveka v 4ni10me126 under the guidance of dr. During transfer of heavy load, the hook is subjected to failure due to severe stress accumulation at its. Design of a crane hook of different materials and stress analysis. Modeling of crane hook the crane hook is modeled using ptc creo using the dimensions given in the design data book 12. Firstly, the 3d model of the hook is built used catia. Research article open access topology optimization. Using patranmsc nastran, calculate the stresses at point a and point b.