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.
Equations for fast and exact calculation of a simple model for heat transfer from a bond wire to a cylindrical finite mold package including nonideal heat transfer from wire to mold are presented. These allow for a characterization of an arbitrary mold/bond wire combination. The real mold geometry is approximated using the mold model cylinder radius and the thermal contact conductance of the mold/bond...
Stress analysis of a chemical reactor head was computationally simulated by a finite element method and probabilistically evaluated in view of several uncertainties in the performance parameters. Cumulative distribution functions and sensitivity factors were computed for overall heat transfer rate due to the structural and thermodynamic random variables. These results can be used to quickly identify...
To master the heat transfer rule of phase change material(PCM) wall, two kinds of hollow boxes was made with different material, one was made of pure EPS granule, the other one was made of EPS and PCM, temperature of cavum was measured during thermal translation process experiment. The hollow boxes was separated into 4 nodes finite element, the experiment time was divided into finite time point, the...
The identification of defect parameters in thermal non-destructive test and evaluation (NDT/E) was considered as a kind of inverse heat transfer problem (IHTP). However, it can be farther considered as a shape optimization problem then a structure design optimization problem, and the design results should meet the surface temperature profile of the apparatus with defects. A bacterial colony chemotaxis...
A simulation with combination of a finite element analysis of Thermally Conductive Adhesive and contact resistance modeling has been presented. Using ANSYS and MATLAB software thermal conductivity and electrical resistivity of Conductive Adhesives with Ag filler and Epoxy matrix has been calculated. Thermally Conductive Adhesives are used as a thermal interface material to provide a better conduction...
Accurate computation of gun barrel temperature history is necessary to predict the barrel-wear and cook-off. Most of the previous researchers, in their computational models, neglected the variation of thermal conductivity and specific heat of gun metal, with temperature. It is expected to introduce an error in the results. In this work, this error was estimated by incorporating the variation of thermal...
The eddy loss of stator windings in synchronous generator was calculated using analysis method and finite-element method, the distributed characteristic of stator windings temperature field was studied. In this paper, the distribution characteristic of eddy current of windings in rectangular slot was analyzed first by using analytical method, and the mathematical representations of eddy current were...
The temperature field of a wind generator is analyzed by finite element method. The steady-state heat transfer mathematic model is set up, and hypothetical conditions are presented, together with boundary conditions and loads are calculated according to the heat transfer theory in air-cooling condition. Dealing with the calculation results of the temperature field of the wind generator, the temperature...
Stress analysis of a pressure vessel was computationally simulated by a finite element method and probabilistically evaluated in view of the several uncertainties in the performance parameters. Cumulative distribution functions and sensitivity factors were computed for overall heat transfer rate due to the structural and thermodynamic random variabIes. These results can be used to quickly identify...
Stress analysis of a cone-cylinder pressure vessel was computationaIly simulated by a finite element method and probabilisticaIly evaluated in view of several uncertainties in the performance parameters. Cumulative distribution functions and sensitivity factors were computed for overaIl heat transfer rate due to the structuraI and thermodynamic random variabIes. These results can be used to quickly...
In this paper, switched reluctance motor (SRM) to be employed electric vehicle (EV) is designed using finite element method (FEM). The static torque of SRM is estimated with the magnetic field analysis. The temperature rise with time of SRM is estimated with the heat transfer analysis. First, the static torque and temperature rise with time of 600W SRM included in an experiment set, and are compared...
The objective of this paper is to analyze the heat transfer characteristics of the linear variable reluctance motor using a thermal resistance model. The proposed model is suitable for rapid thermal performance evaluation in the early stages of motor design. The linear motor under consideration operates with continuous periodic excitation and long-stroke reciprocating motion, allowing modeling simplifications...
Analytical calculus and computational models of multiphysics problems were used in order to solve an overheating problem and simultaneously increasing reactive power in a generator group of a hydroelectric power plant (HPP). All of them present the same geometrical, mechanical and electromagnetic characteristics. A method of iteration using finite elements analysis (FEA) called simplified virtual...
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.