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.
The engine box and the bearing cover have high concentricity requirements. In response to this, cutting parameter optimization of the main bearing bore boring process is presented. Combined with the processing requirements and processing characteristics of the main bearing bore boring process, the three-dimensional finite element model was established based on the Deform-3D. The variation of cutting...
The first step in FEM-based deformation is voxelization, which means objects showed in original mesh will be desecrated into mass of small units (voxels), and then the characteristic matrix can be fetched with the coordinate, shape, and attributes of voxels. This paper focuses on the reciprocity between specifying voxel physical parameter and simulating the deformation. A table list out provides physical...
The reliability of a connector depends on the contact force generated by the spring in the terminal of a connector. The springs are commonly formed by stamping from a strip of spring material. Therefore, the prediction of the force - displacement relation by the finite element method (FEM) is very important for the design of terminals. For simulation, an accurate model of stress-strain (s-s) responses...
Traditional Japanese sweets have long history and intense cultural background. In order to automate the manufacture process and also hand down the skillful techniques of sweets making, it is necessary to investigate the mathematical models of such objects and estimate their physical properties. This paper introduced a five-element physical model to describe the deformation behaviors of such materials...
Advancements in real-time surgical simulation techniques have provided the ability to utilize more complex nonlinear constitutive models for biological tissues which result in increased haptic and graphic accuracy. When developing such a model, verification is necessary to determine the accuracy of the force response as well as the magnitude of tissue deformation for tool-tissue interactions. In this...
The relationship between force and deformation in machining was studied, taking the flexible interlayer as object. Firstly, the factors influencing the deformation in machining the flexible materials and the uncertainty of deformation were analyzed, then the force analysis of the flexible materials in machining, and the simplified linear elastic mechanical structure model of the flexible interlayer...
A novel generation of micro/nano displacement sensor for PZT actuator which could measure the minute displacement in micron or nanometer level has been performed in this paper. In general, the former two generations of sensor at IIM have been fabricated and tested successfully. In this paper, a new generation micro/nano displacement sensor with higher resolution has been proposed. This paper focus...
We have investigated the deformation of a soft fingertip when it slides. This process was first simulated using the non-linear Finite Element Analysis (FEA) method. Based on the results of this simulation, we designed experiments to observe the sliding and object grasping of a soft fingertip, in which a 3-DOF (degree of freedom) micro force/moment sensor was embedded. With this sensor, forces and...
A finite element method involving Johnson-Cook material model and fracture criterion was used to simulate the serrated chip morphology during high speed machining AISI 4340 hardened steel in different rake angles using commercial FE software ABAQUS. The effects of rake angle and chip morphology on cutting force were discussed. The investigation indicates that the simulation results are consistent...
The asymmetry of a bevel-tip needle results in the needle naturally bending when it is inserted into soft tissue. As a first step toward modeling the mechanics of deflection of the needle, we determine the forces at the bevel tip. In order to find the forces acting at the needle tip, we measure rupture toughness and nonlinear material elasticity parameters of several soft tissue simulant gels and...
This paper introduces volume springs that provide the volume effect to a surface model when it is deformed. The estimation of the properties of the model takes the real material properties into consideration, where each spring stiffness is derived based on the elasticity, rigidity and compressibility modulus. The proposed model can be adopted to simulate soft objects such as a deformable human breast,...
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.