The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Wearable devices such as prosthetics, exoskeleton, robotic manipulator, orthosis are necessary for training rehabilitation process for disabled people. They require a compact size, a light weight and a safe interact between people and equipment. This paper proposes a design and analysis of a new gear-driven compliant torsional spring for rehabilitation device of an upper limb. The device consists...
Following paper presents development and results of finite element structural simulations prepared in order to estimate contact pressure distribution on teeth flanks of gear transmission caused by assembly errors. In first paragraphs, importance of alignment precision of gear transmission components is described. As well, influence of machining and assembly errors on spur gear transmission was introduced...
In this paper, we established the finite element model of an O-ring in the actuator cylinder of a certain aircraft landing gear in order to analyze the O-ring's Von Mises stress and contact stress and to compute its wear longevity. The contact mechanics characteristic of the O-ring under working status is simulated through the ABUQUS. We adopt the Mooney-Rivlin hyperplastic material model to keep...
Torsion links are components which couple inner and outer cylinders of a landing gear mechanism. They prevent torsion or twisting between the cylinder and piston components in the structure. The integrity of this component is essential to prevent shimmy vibrations in an aircraft landing gear. Failure of this component is thus catastrophic for the aircraft. The typical geometry of torsion link of a...
Gears now a days are being used in almost all mechanical machines. These gears also add inertia to the drivetrain, which has to be decreased in order to decrease the losses. Hence changing the shape of the gear disk to decrease the weight is a pressing factor. This paper discusses about the arrangement of the pockets so as to get the least stress. The values of the loads are for an All-Terrain Vehicle...
This article presents a study aimed at the determination of the stresses and deformations for a planetary gear of a speed multiplier of a wind turbine. These planetary gear are made by using part and assembly design module in Pro/ENGINEER 4.0 M220 software, while the analysis is done in ANSYS V15 software to evaluate the constraints and the deformations using the finite element method. Optimization...
This paper explains a method to evaluate the bending stress at the root of Asymmetric Involute spur Gear using 3dimensional Photoelasticity method. Profiles of an asymmetric gear tooth on drive side and coast side have different pressure angles. The method ISO/TC-60 has been used to theoretically calculate the bending stresses. 3D CAD model of the said gear is generated in CATIA V5 R15 and the Finite...
The dynamic response of contact mechanics has significance important for durability and reliability design of gears. A finite element analysis model for dynamic response of contact mechanics of gear pair is established, and then the contact fatigue life of gear pair is analyzed based on the finite element model. The key parameters of contact finite element model is determined through the contact finite...
Micro-gears are key components in Micro-Electro-Mechanical System (MEMS). For micro-gears, bending strength analysis is not only an effective way to improve gear bearing capacity, but also the foundation of tooth profile optimization and vibration reduction. In addition to theoretical calculation, it is necessary to measure bending stress for more accurate strength analysis. In this paper, a bending...
Rolling mill is an important monomer production line equipment, and rolling mill main drive system is a core component. The design of rolling machine is important to improve the nature and service life of the rolling mill. This article through strip mill of the working parameters, and selected the transmission scheme to design the main components of the reducer. Through UG finished each parts 3d modeling...
This article used ANSYS, the software of finite element analysis, to analyze the contact stress between the wheel gear and the rack the two locking devices, which called in the switch. While through adding the necessary conditions, such as restrain methods, element types, coefficient of friction, Poisson ratio, damping ratio, contact conditions etc, We are also testing the simulation meshing run of...
Duo to the limitation of the gear-rack's structure profile for an aircraft slat, the maximum stress value got from test is not the value under actual load. In this paper, based on finite element model of gear-rack built by analysis software ABAQUS, the maximum stress value of gear-rack is determined by force analysis. Thus the strength of the gear-rack is checked, and finally the fatigue life is estimated...
In this paper, the shells of internal gear pumps of different materials were analyzed by ANSYS software to find the different applications between shells of dectile iron and shells of aluminum. Then, these two kinds of shells were optimized, which improved the overall performance of the gear pumps. Finally, the actual deformation of shells of gear punps under different loads were measured. And the...
This paper designs a new driving axle with double-gear wheel reductor which is used in the Pavement Accelerated Loading Experimental Facility. Three-dimensional assembly model is established based on the CATIA and strength calculation and finite element simulation analysis to the rear axle housing and the axle shaft are carried on based on finite element analysis software. The correlation data and...
A prototype model of Ring-plate Planetary Indexing Cam Mechanism (RPICM) is developed with the commercial software of Solidworks 2010. The dynamics simulation using Solidworks 2010's Motion module is carried out, and the contact force of the cam and the pin gear is received. A 2D finite element model of the RPICM is established with Matlab and ANSYS software. This paper is aimed at the strain analysis...
The input gears from the first stage of a combine harvester gearbox have been subjected to experimental testing. A three-dimensional finite element model was established by using Solid Works and the effect of an external load distribution along the gear tooth width was added according to actual working situations. In the Solid Works/Simulation module, the contact relation was established based on...
In order to solve the calculation of the micro-segment gear's contact stress, Ansys (one FEM software) is used here. First the model of the gear is set up in Catia(one 3D modeling software), then the model is imported to Ansys from Catia, and the result of contact stress is got in Ansys. The contrasting analysis of in volute gear and micro-segment gear with the same parameters are shown in the paper...
Based on the elastoplasticity contact finite element theory, the high contact-radio gear three dimensional static state finite element analysis model was established, The Newton-Raphson method is used to get the statics contact stress and load distribution factor of gear teeth, and the influence of different fricton coefficients. Comparison with Hertz contact stress, the correctness of this method...
Multiple, often conflicting objectives arise naturally in most real-world optimization. Gear is a mechanical device that transfers the rotating motion and power from one part of a machine to another. Searching for best gear is a very hard problem. Gear optimization can be divided into two categories, namely, single gear pair or Gear train optimization. The problem of gear pairs design optimization...
DEFORM-3D software is a powerful simulation tool that uses the Finite Element Method to analyze the three dimensional complex forging process, It provides a virtual testing environment in which engineers can study the influence of geometric parameters, process parameters and other factors on forging process performance. This paper aims at the forging process of automotive starter motor ring gear,...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.