scholarly journals Design and Analysis of Bionic Cutting Blades Using Finite Element Method

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Mo Li ◽  
Yuwang Yang ◽  
Li Guo ◽  
Donghui Chen ◽  
Hongliang Sun ◽  
...  

Praying mantis is one of the most efficient predators in insect world, which has a pair of powerful tools, two sharp and strong forelegs. Its femur and tibia are both armed with a double row of strong spines along their posterior edges which can firmly grasp the prey, when the femur and tibia fold on each other in capturing. These spines are so sharp that they can easily and quickly cut into the prey. The geometrical characteristic of the praying mantis’s foreleg, especially its tibia, has important reference value for the design of agricultural soil-cutting tools. Learning from the profile and arrangement of these spines, cutting blades with tooth profile were designed in this work. Two different sizes of tooth structure and arrangement were utilized in the design on the cutting edge. A conventional smooth-edge blade was used to compare with the bionic serrate-edge blades. To compare the working efficiency of conventional blade and bionic blades, 3D finite element simulation analysis and experimental measurement were operated in present work. Both the simulation and experimental results indicated that the bionic serrate-edge blades showed better performance in cutting efficiency.

2012 ◽  
Vol 499 ◽  
pp. 322-326
Author(s):  
Yun Liu

Inverted siphon structure is a common water conveyance buildings, computer as a efficient computational tool is used, this paper adopt finite element method to carry out three-dimensional finite element simulation analysis for Jinliang Rive inverted siphon structure. Deducing variation law of the inverted siphon’s stress and displacement in construction process and operational process. Analysis results further verified that design scheme is reasonable and safe, it has certain reference value.


2013 ◽  
Vol 405-408 ◽  
pp. 713-716
Author(s):  
Qian Zhao ◽  
Jin Sen Wang ◽  
Su Min Zheng

Metal lamp pole is widely used in road lamp. The structure of the metal lamp pole is more and more complex. It needs to open holes on the metal lamp pole. To determine bearing capacity and safety properties of the lamp pole after opening hole, this paper used ABAQUS software to make finite element analysis of the metal lamp pole and accurately got the deformation and stress of metal lamp pole. By means of comparing the stress situation of the metal lamp pole with and without holes, it summaries up the influence rules of holes on the mechanical behavior of metal lamp pole. There is an obvious stress concentration phenomenon around holes and the influence degree of different holes location of stress concentration is also different. Through finite element simulation analysis, it meets the project safety and provides reference value for optimization design of lamp pole.


2013 ◽  
Vol 394 ◽  
pp. 327-331
Author(s):  
Min Tan

nverted siphon structure is a common water conveyance buildings, computer as a efficient computational tool is used, this paper adopts finite element method to carry out three-dimensional finite element simulation analysis for Kongzou river trench-buried inverted siphon structure. Deducing variation law of the inverted siphons stress and displacement in construction process and operational process. Analysis results further verified that design scheme is reasonable and safe, it has certain reference value.


2013 ◽  
Vol 680 ◽  
pp. 410-416 ◽  
Author(s):  
Jun Ming Wang ◽  
Fu Yuan Tong ◽  
Xiao Xue Li

By simplifying the geometric shape of abrasive grain in a cone-shape, the authors conduct the 3D dynamic finite element simulation on profile grinding with axial feed by single abrasive grain using deform-3D software. Analysis is made on the influence upon the grinding forces in case of the same grinding speed, the same grinding depth and the same friction factor between wheel and workpiece at different axial feed. The results show that the normal force and the tangential force increase with the increase of axial feed, but the axial force decreases with the axial feed.


2014 ◽  
Vol 488-489 ◽  
pp. 589-592
Author(s):  
Min Tan

Inverted siphon structure is a common water conveyance buildings, computer as a efficient computational tool is used, this paper adopt finite element method to carry out three-dimensional finite element simulation analysis for Dahedong inverted siphon structure. Deducing variation law of the inverted siphons stress and displacement in construction process and operating process. Analysis results further verified that design scheme is reasonable and safe, it has certain application value.


2014 ◽  
Vol 915-916 ◽  
pp. 146-149
Author(s):  
Yong Sheng Wang ◽  
Li Hua Wu

The finite element model of the space KX-Joint was established using ANSYS software, and the failure mode and ultimate bearing capacity of KX-joint were researched. Calculation results show that the surface of chord wall on the roots of compression web members was into the plastic in K plane, and the holding pole without the plastic area and the local buckling failure happened in the surface of chord wall on the roots of Compression Web Members in X plane; The bearing capacity of the joint increased with the Chord diameter, which was appears in the form of power function.


2011 ◽  
Vol 101-102 ◽  
pp. 463-466
Author(s):  
Dong Yu Ji

Reinforced concrete continuous box-girder overpass is a common structure form, Wangzhuang overpass is example, this paper adopts universal finite element calculation software to carry out finite element simulation analysis for reinforced concrete continuous box-girder overpass. Considering the influence of overpass structure weight and driveway load, the distribution law of overpass stress and displacement were researched. Analysis results show that, load’s short-term effect combination has great influence on overpass structure, driveway slanting load’s influence on overpass structure’s stress and deformation can not be ignored.


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