Yu Qi Wang

Analytical Model for Strength of Clinched Joint in Aluminium Alloy Sheet

The purpose of this study is to propose the analytical model for clinched joint, which can be used to predict the joint strength based on the neck-thickness and undercut of clinched joint. The analytical model has been defined as a function of neck-thickness and undercut based on the neck fracture mode which is the most reasonable and common failure mode for clinched joints. Clinching joining experiment with different joint geometric variables with RIVCLINCH 1106 P50 and tensile-shear test with MTS landmark were conducted. The comparison of the clinched joint strength between experiment and analytical model shows good similarity within 7.2% error. The analytical model proposed for clinched joint strength is valid to calculate the clinched joint strength.

The Research of COMAS Vibrating Conveyor Noise Reduction

In a cigarette silk production line of a cigarette factory, the noise of vibrating conveyor not only endangers the health of workers’ listening, but also reduces work efficiency. In this paper, the modal of the frame was analyzed with the ANSYS software. The analysis results show that the frame has torsion vibration and swing. These vibrations will bring adverse effects and noise. Through designing a vibration isolation system on the vibrating conveyor, the reasonableness and effectiveness of the isolation component were proved with static and dynamic analysis of the vibration isolation system with finite element method. At the same time, some rules what select the spring parameters were summed up. Through analyzing the isolation effect of the vibration isolation system in different parameters, these regularity conclusions will provide a basis for the noise reduction [1].

The Numerical Simulation and Parameter Optimization Analysis of Straightening Machine Straightening Process Based on ANSYS/LS-DYNA

Copper is important to the national economy as a kind of raw material, the Copper metal with higher purity is got by electrolysis in generally. In order to ensure the uniform space between cathode and anode when they are in electro-groove, to attain the better quality of cathode copper and raising production efficiency, verticality of the cathode and anode must be well. So it is very necessary to straighten the Copper starting sheet to acquire the better verticality, this paper adopt the roller type straightening machine to straighten the Copper starting sheet by analysis and comparison according to the material and structure characteristic of Copper starting sheet . In order to test the straightening ,this paper will use the ANSYS/LS-DYNA to simulate straightening machine to meet the need of company.

Stress Distribution Properties in Adhesively Bonded Beams

The stress distribution properties in a single lap-jointed cantilevered adhesive beam have been investigated using three dimensional finite element methods. Finite element solutions of the stress distributions in the adhesive layer have been obtained for three typical boundary conditions. It was found that the stress concentrations are confined to a very small region near the free ends of interfaces between the adherend and the adhesive layer while the centre region of the adhesive layer is mostly stress-free. This suggests that the first failure may be expected at the free ends of interfaces between the adherend and the adhesive layer. This also implies that the adhesive material near the free ends of the adhesive layer is mainly bearing the load being transferred through the adhesive joint. The analysis results show that by choosing suitable boundary condition, the bending effect can be reduced and the strength, fatigue life and reliability of the bond can be improved.

A Performance Study on Self-Piercing Riveting and Adhesive Hybrid Joints of Different Adhesive

This paper studied the performance of self-piercing riveting (SPR) and adhesive hybrid joints of different adhesive, including strength, capacity of energy absorption, failure mode and failure mechanism of the hybrid joints. The performances of SPR-adhesive hybrid joints were compared with SPR joints. SPR-adhesive hybrid joints and SPR joints were tested under a tension loading. The test results showed that adhesive have a function of improving the strength of SPR joints; however, the capacity of energy absorption of SPR joints was weakened. While the adhesive have no effect on the failure modes of SPR joints. When appropriate adhesive was selected, the overall performance of SPR-adhesive hybrid joints was superior to SPR joints. In a word, the combination of SPR and adhesive could get a well jointing structure.

Three-Dimensional Non-Linear FE Analysis of Shear Stress Distributions in Adhesively Bonded Joint

The aim of this work is to investigate the shear stress distributions across the adhesive layer thickness in single-lap adhesively bonded joint. The shear stress distributions of a single-lap adhesively bonded joint have been investigated using the three-dimensional linear static and non-linear quasi-static finite element method. The analysis results indicate that there are significant differences between the linear static and non-linear quasi-static analyses. The results also show that the maximum value of the shear stress component S13 occurs at the centre line while the maximum of the shear stress components S12 and S23 occur near or at the left-rear corner of the adhesive layer.

Numerical Study on Normal Stress Distributions in a Single-Lap Adhesive Joint

Adhesively bonding is becoming a widespread candidate technique for joining light-weight structural components. This paper investigates normal stress distribution in a single-lap adhesive joint using finite element method. Five layers of solid elements were used across the adhesive for obtaining an accurate indication of the variation of normal stress. All the numerical results obtained from the finite element analysis show that the spatial distribution of normal stress are similar for different interfaces. It can also be seen from the results that the left hand region is subjected to very high stress.

The Dynamic Simulation of Vertical Planetary Wheel Sand Reclamation Equipment Based on ADAMS

Vertical planetary mill is a kind of efficient grinding equipment. Due to its unique design, the materials can suffer combined effects of squeezing, shearing and grinding. this paper developed the virtual prototype of vertical planetary grinding wheel sand reclamation equipment based on virtual prototyping technology, and did the dynamic simulation with this virtual prototype. It will use ADAMS to do the dynamic simulation, and it can provide reference price for staff.

Parameters Research of Precise Straightening Process in Roller Leveler

Electrolysis is the main method of refined copper smelting. In order to obtain high-quality refined copper, it needs to ensure that the negative plate in the electrolytic cell has a high flatness. The precise straightening device in roller leveler is the last step to ensure the negative plate of high quality flatness. Studying the influence of parameters of precise straightening in roller leveler on the flatness of the negative plate has an important significance. Precise straightening process were simulated in ANSYS/LS-DYNA. The results of simulation were analyzed, on the basis of better meeting the requirements of enterprise, the most reasonable set of matching parameters was chosen to provide a reference for the enterprise designing and studying the roller leveler.

The Research of Adhesively-Bond of Paster Single Lap Joints on Strength Based on ANSYS

The adhesive-bond of paster single lap joints was put forward firstly. The strength of 5052Al-Al adhesive-bond of single lap joints (SLJ) and 5052Al-Al paster adhesive-bond of SLJ were investigated using finite element method (FEM). Results from the simulation showed that the paster adhesive-bond of SLJ was stronger than the adhesive-bond of SJL. So it can use the paster adhesive joints to improve the strength of adhesive joints.