Design and stress analysis 0f various cross section of hook ijiet. Tower crane reference manual, the receipt of which is acknowledged, does hereby and for all future time release and hold harmless from any liability, and forever discharge for itself, its administrators and assigns the said nccco from all and any manner of action or demands whatsoever in law, in admiralty, or in. 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. A crane hook shown in figure below is made of 30mm diameter steel rod. 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.
The section at xx is rectangular whose horizontal side is 100 mm. The investigation was realized using numerical as well as experimental analysis. Static analysis of crane hook with tsection using ansys. 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. A lifting hook is usually equipped with a safety latch to prevent the disengagement of the lifting wire rope. Gantry crane means a crane similar to an overhead crane except that the bridge for carrying the trolley or trolleys is rigidly supported on two or more legs running on fixed rails or other runway. A hook block is an assembly to which the hook of a hoist or crane is. Topics include safe operating procedures, preoperating inspection, proper rigging and lifting, moving and placing a load safely. Th crane hook load tm main plate thichness of padeye. Specifications for design of hot metal ladles, aise.
Crane hooks are the components which are used to lift the heavy load in constructional sites and industries. Pdf crane hooks are highly liable components and are always subjected to failure due to accumulation of large amount of stresses which can eventually. 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. Crane hooks are liable components subjected to failure due to stress in. The three dimensional model of the crane hook for three cross sections is shown in the figure 2. Design stress analysis of crane hook linkedin slideshare. Crane electric cubicle built in the hoist mt 2 electronic control and recording status of the hoist and crane. Shank hooks 53 5 hoist hooks incorporate markings forged into the product which address two 2 quiccheck features. The crane would also need stabilizing members in the plane perpendicular to the drawing. Pdf stress analysis of crane hook and validation by. Crane is subjected to con tinuous loading and unloading. The purpose of this study is to optimize the performance of the crane hook based on stress, geometry, and weight.
Curved beam formula is used for determination of stresses in crane hook analytically. 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. By predicting the stress concentration area, the shape of the. To minimize the failure of crane hook 5, the stress induced in it must be studied. This causes fatigue of the crane hook but the fatigue cycle is very low 6. Crane hooks are highly liable components and are always subjected to failure due to accumulation of large amount of stresses which can eventually. A common machine element problem involving curved beams is the crane hook shown in fig. Design and optimization of the geometric properties of a. To minimize the failure of crane hook, the stress developed in it shall. Crane is subjected to continuous loading and unloading.
The geometry is created in another software such as solidworks or creo which must be saved in step format and imported in ansys workbench. For reducing the failures of hooks the estimation of stresses, their magnitudes and possible locations are very important. The created solid model is imported in ansys for stress analysis. The channel contains more tutorials of solidworks,catia. This not only causes the load to swing, but places. Protect the load and sling from damage select the best sling. Real time pattern of stress concentration in 3d model of crane hook is obtained. The stress distribution pattern is verified for its correctness on an acrylic model of crane hook using shadow optical method caustic method set up. Student 2professor and head 1,2department of mechanical engineering 1,2dypiet, pimpri,pune abstractthe. Stress analysis of crane hook and validation by photo. Structural failure of the crane hook may happen as a crane hook is subjected to continuous loading and unloading. A crane is designed to lift a load by using ropes or chains. Note that this is a simplified view of the crane showing only the primary structural components and the forces in the plane of the applied load. Spasoje trifkovic et al12 worked on the stress state in the crane hook using exact and approximate methods.
If a crack is developed in the crane hook, it can cause frac. Hooks with safety latches which prevent the shackles or lines from escaping the throat of the hook are recommended. Stress analysis of crane hook with different cross section. A project presentation on design and stress analysis of crane hook submitted to university of mumbai in partial fulfillment of the requirement. Design, analysis and weight optimization of crane hook. On the other hand, the eye should always be used on a hook or pin with at least the nominal diameter. Experimental analysis was performed in laboratory conditions via noncontact optical method of digital image correlation. In many unreinforced thermoplastics, it is not even possible to demonstrate by way of. The contribution deals with a fullfield stress analysis of the crane hook model.
Stress analysis plays an important role in the design of structures like crane hook under loading conditions. Crane hook, ansys, curved beam, stress, winklerbach theory. The analysis criterion and the test conditions are. Tower crane reference manual, the receipt of which is acknowledged, does hereby and for all future time release and hold harmless from any liability, and forever discharge for itself, its administrators and. For numerical analysis cad model of crane hook is prepared using proe and this model is imported in ansys where stress analysis is done by fem.
However, hooks are often used with shackles or oblong rings. Torres et al worked on the causes which led to failure of the crane hook in service. The stress distribution pattern is verified for its correctness on an acrylic model of crane hook using. Specifications for design of hot metal ladles, aise standard. If a crack is developed in the crane hook, it can cause fracture of the hook and lead to serious accident. Fullfield stress analysis of a crane hook model performed by. 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. For analysis purpose virtual model of crane hook is. The crane hook carries a load of 20 kn as shown in given below fig. The shackle properties most significant to this discussion are. Introduction to jib cranes free standing fs300 base plate mounted free standing fs350 insert mounted. To minimize the failure of crane hook, the stress occurred in it must be studied. After optimizing the cross section crane hook the approach turned towards the material saving.
Failure of a crane hook mainly depends on three major factors i. Fb allowable bending stress ft allowable tensile stress fy material yield stress. During transfer of heavy load, the hook is subjected to failure due to severe stress accumulation at its critical section. Stresses are calculated in various regions of the crane hook material by assuming crane hook as a straight beam and curved beam. During transfer of heavy load, the hook is subjected to failure due to severe stress accumulation at its. Fullfield stress analysis of a crane hook model performed. Shaban et al 1 studied the stress pattern of crane hook in its loaded condition, a solid model of crane hook is prepared with the help of abaqus software. Display with load indication on hoist, hook, control box or crane.
To study the stress pattern of crane hook in its loaded condition, a solid model of crane hook is prepared with. In this paper the crane hook model is prepared in creo 2. Pdf crane hook is most significant component used for lifting the load. The block is located at the end of the hoist cable with the load hook attached. Find the stresses in the inner and outer fibres, the given section. Hook approach, c dimensions and the f approach distance of the hoist are the smallest available on the market. Determination of stress distribution in crane hook by. Pdf stress analysis of crane hook and validation by photo. The stress distribution pattern is verified for its correctness on an acrylic model of crane hook using diffused. The results of the crane hook analysis in the study using the materials alloy 1. Photoelasticity, crane hook, finite element method, curved beam, stress optic law. For a free standing jib crane fs300, fs350, fs350s, wsj360, aj360f, tsj50fs, tsj150fs, pprofs the supporting structure is the foundation which the crane is bolted to or implanted in. 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.
Feb 27, 2017 design stress analysis of crane hook 1. A lifting hook is a device for grabbing and lifting loads by means of a device such as a hoist or crane. Investigation of stresses in crane hook by fem ijert. In numerical analysis, the software based on finite element method was used. Abstract crane hook is very significant component used for lifting the load with the help of chain or wire ropes. Swp, time running, starts, overloads, temperature, load, brake, etc. Determination of stress distribution in crane hook by caustic. Real time pattern of stress concentration in 3d model of. Deformation indicatorstwo strategically placed marks, one just below the shank or eye and the other on the hook tip, which allows for a quiccheck measurement to deter. Designed to stringent, globally recognized din standards, our highquality unmachined and machined products range in capacity from 1 to 1250 metric tons. Stresses are calculated in various regions of the crane hook material by assuming crane hook as a straight beam and curved. For economic design, x should be as minimum as possible. The design of crane hook is concerned with certain parameters like area of cross section, material, radius of curvature etc. This offering includes standard forged hooks, crossheads, nuts and complete hook suspensions.
Modeling of crane hook the crane hook is modeled using ptc creo using the dimensions given in the design data book 12. Determine the load f so that the maximum stress in the rod is not to exceed 40 nmm 2. Stress analysis of crane hook and validation by photoelasticity. Crane components for standards cranes lifting equipment. 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. The following specific information, together with the aise standard no. Crane hooks are one of the important components which are used to transfer materials having heavy loads, mainly in industries. Stresses are calculated in various regions of the crane hook material by assuming crane.
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