Micromotion Analysis of a Dental Implant System

2020 ◽  
pp. 153-164
Author(s):  
R. Manimaran ◽  
Vamsi Krishna Dommeti ◽  
Emil Nutu ◽  
Sandipan Roy
Keyword(s):  
Dental Implant ◽  
Design Method ◽  
Uniform Design ◽  
Fe Analysis ◽  
The Novel ◽  
Element Analysis ◽  
Control Factors ◽  
Improved Design ◽  
Uniform Design Method ◽  
Implant System

The objective of project is to reduce the micromotion of novel implant under the static loads using function of uniform design for FE analysis. Integrating the features of regular implant, a new implant model has been done. Micromotion of the novel implant was obtained using static structural FE analysis. Compared to the existing International team for implantology implants, the micromotion of the novel implant model was considerably decreased by static structural analysis. Six control factors were taken for achieving minimizes the micromotion of novel dental implant system. In the present work, uniform design technique was used to create a set of finite element analysis simulation: according to the uniform design method, all FE analysis simulation; compared to the original model, the micromotion is 0.01944mm and micromotion of improved design version is 0.01244mm. The improvement rate for the micromotion is 35.02%.

Micromotion Analysis of a Dental Implant System

2021 ◽  
pp. 519-530
Author(s):  
R. Manimaran ◽  
Vamsi Krishna Dommeti ◽  
Emil Nutu ◽  
Sandipan Roy
Keyword(s):  
Dental Implant ◽  
Design Method ◽  
Uniform Design ◽  
Fe Analysis ◽  
The Novel ◽  
Element Analysis ◽  
Control Factors ◽  
Improved Design ◽  
Uniform Design Method ◽  
Implant System

The objective of project is to reduce the micromotion of novel implant under the static loads using function of uniform design for FE analysis. Integrating the features of regular implant, a new implant model has been done. Micromotion of the novel implant was obtained using static structural FE analysis. Compared to the existing International team for implantology implants, the micromotion of the novel implant model was considerably decreased by static structural analysis. Six control factors were taken for achieving minimizes the micromotion of novel dental implant system. In the present work, uniform design technique was used to create a set of finite element analysis simulation: according to the uniform design method, all FE analysis simulation; compared to the original model, the micromotion is 0.01944mm and micromotion of improved design version is 0.01244mm. The improvement rate for the micromotion is 35.02%.

UNIFORM DESIGN AND DYNAMIC FINITE ELEMENT ANALYSIS FOR MICROMOTION IMPROVEMENT OF SEMADOS DENTAL IMPLANT SYSTEM UNDER DYNAMIC CHEWING LOADS

2014 ◽  
Vol 14 (06) ◽  
pp. 1440007 ◽  
Author(s):  
CHO-PEI JIANG ◽  
CHENG-KANG LEE ◽  
WEI-LUN TSAI ◽  
YUNG-CHANG CHENG
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Dental Implant ◽  
Uniform Design ◽  
Experimental Simulation ◽  
Original Design ◽  
Element Analysis ◽  
Dynamic Finite Element ◽  
Dynamic Finite Element Analysis ◽  
Implant System

This study aimed to improve the micromotion of a Semados dental implant system subjected to dynamic chewing loads. Micromotion of the Semados dental implant system with basic dimensions was obtained using dynamic finite element analysis, and five parameters of the implant were selected as the control factors to be improved. A uniform design method was employed to construct a set of experimental simulations. Next, for each experimental simulation, the dynamic finite analysis package ANSYS/LS-DYNA was employed to simulate the behavior of the Semados dental implant model subjected to dynamic chewing loads and then determine the maximum micromotion of the cortical and cancellous bones. Finally, the best design of the experimental simulations that caused the smallest amount of micromotion was selected as the improved design version. Compared to the original design, which experienced micromotion of 74.53 μm, the improved version experienced micromotion of 45.41 μm. The rate of improvement was 39.1%.

scholarly journals Optimization of the extraction and purification of Corydalis yanhusuo W.T. Wang based on the Q-marker uniform design method

BMC Chemistry ◽  
2020 ◽  
Vol 14 (1) ◽  
Author(s):  
Yongping Zhang ◽  
Zuhua Wang ◽  
Jian Xu ◽  
Fangfang Yang ◽  
Chuanyang Dai ◽  
...  
Keyword(s):  
Design Method ◽  
Uniform Design ◽  
Extraction And Purification ◽  
Uniform Design Method

scholarly journals Effect of Mixed Commercial Cold Flow Improvers on Flow Properties of Biodiesel from Waste Cooking Oil

Processes ◽  
2020 ◽  
Vol 8 (9) ◽  
pp. 1094
Author(s):  
Siyu Nie ◽  
Leichang Cao
Keyword(s):  
Design Method ◽  
Uniform Design ◽  
Waste Cooking Oil ◽  
Cold Filter Plugging Point ◽  
Depressing Effect ◽  
Obvious Effect ◽  
Cold Flow ◽  
Cooking Oil ◽  
Uniform Design Method ◽  
Solidifying Point

The uniform design method was used to screen the solidifying point depressing effects of 18 traditional diesel cold flow improvers on biodiesel derived from waste cooking oil. The cold flow improvers with good effects were selected for orthogonal optimization. Finally, the mixed cold flow improver (CFI) with the best depressing effect was selected to explore its depressing mechanism for biodiesel. The results show that the typical CFIs such as A132, A146, 10-320, 10-330, A-4, CS-1, AH-BSFH, Haote, T1804D, and HL21 all have a certain solidifying point depressing effect on biodiesel, while other cold flow improvers had no obvious effect. Amongst them, 10-330 (PMA polymer) and AH-BSFH (EVA polymer) had better solidifying point depressing effects over others, both of which reduced the solidifying point (SP) of biodiesel by 4 °C and the cold filter plugging point (CFPP) by 2 °C and 3 °C, respectively. From the orthogonal mixing experiment, it can be seen that the combination of 10-330 and AH-BSFH at a mass ratio of 1:8 had the best depressing effect, reducing the solidifying point and cold filter plugging point of biodiesel by 5 °C and 3 °C, respectively. Orthogonal analysis showed that when used in combination, AH-BSFH had a greater impact on the solidifying point, while the ratio of the combination had a greater impact on the cold filter plugging point.

scholarly journals Biomechanical Design Application on the Effect of Different Occlusion Conditions on Dental Implants with Different Positions—A Finite Element Analysis

2020 ◽  
Vol 10 (17) ◽  
pp. 5826
Author(s):  
Pei-Ju Lin ◽  
Kuo-Chih Su
Keyword(s):  
Finite Element ◽  
Temporomandibular Joint ◽  
Dental Implants ◽  
Dental Implant ◽  
Reaction Force ◽  
Biomechanical Analysis ◽  
Element Analysis ◽  
Group Function ◽  
Implant System ◽  
The Impact

A dental implant is currently the most commonly used treatment for patients with lost teeth. There is no biomechanical reference available to study the effect of different occlusion conditions on dental implants with different positions. Therefore, the aim of this study was to conduct a biomechanical analysis of the impact of four common occlusion conditions on the different positions of dental implants using the finite element method. We built a finite element model that included the entire mandible and implanted seven dental implant fixtures. We also applied external force to the position of muscles on the mandible of the superficial masseter, deep masseter, medial pterygoid, anterior temporalis, middle temporalis, and posterior temporalis to simulate the four clenching tasks, namely the incisal clench (INC), intercuspal position (ICP), right unilateral molar clench (RMOL), and right group function (RGF). The main indicators measured in this study were the reaction force on the temporomandibular joint (TMJ) and the fixed top end of the abutment in the dental implant system, and the stress on the mandible and dental implant systems. The results of the study showed that under the occlusion conditions of RMOL, the dental implant system (113.99 MPa) and the entire mandible (46.036 MPa) experienced significantly higher stress, and the reaction force on the fixed-top end of the abutment in the dental implant system (261.09 N) were also stronger. Under the occlusion of ICP, there was a greater reaction force (365.8 N) on the temporomandibular joint. In addition, it was found that the reaction force on the posterior region (26.968 N to 261.09 N) was not necessarily greater than that on the anterior region (28.819 N to 70.431 N). This information can help clinicians and dental implant researchers understand the impact of different chewing forces on the dental implant system at different positions after the implantation.

Improvement Design of Adhesive Layer on Honeycomb Structure for Railway Vehicle System by Uniform Design Method

2020 ◽  
Vol 830 ◽  
pp. 53-58
Author(s):  
Yung Chang Cheng ◽  
Pongsathorn Pornteparak
Keyword(s):  
Design Method ◽  
Uniform Design ◽  
Equivalent Stress ◽  
Adhesive Layer ◽  
Honeycomb Structure ◽  
Von Mises Stress ◽  
Railway Vehicle ◽  
Original Design ◽  
Control Factors ◽  
Von Mises

The purpose of this paper focuses on adhesive layer strength while having a thermal cycling of honeycomb composite sandwich structure by using the uniform design of experiments method improving the von Mises stress of honeycomb structure. Three system parameters of the honeycomb structure are selected as the control factors to be improved. Uniform design of experiment is applied to create a set of simulation experiments. Applying ANSYS/Workbench software, the finite element modelling is investigated and the von Mises stress of the honeycomb structure is calculated under metal-honeycomb core flatwise tensile test. From the numerical results, the best honeycomb structure dimension of all the experiments which causes the smaller von Mises stress is selected as the improved version of design. Finally, the best model of the experiments which causes the minimum equivalent stress is regarded as the improved version of design. Compared with the original design, the result of ASTM C297 improved version is 17.386 MPa, which mean improved 36.28%, ASTM C364 improved version is 19.015 MPa, which mean improved 25.26%, ASTM C365 improved version is 16.86 MPa, which mean improved 12.35%.

Research on the Cutting Fluid Effect on Cutting Force and Surface Roughness in Rotor Milling

2012 ◽  
Vol 723 ◽  
pp. 50-55
Author(s):  
Jian Lu Wang ◽  
Liang Liang Wu ◽  
Jun Zhang ◽  
Wan Hua Zhao ◽  
Yi Fei Jiang ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Cutting Force ◽  
Design Method ◽  
Uniform Design ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Cutting Fluid ◽  
Cutting Depth ◽  
Multivariable Regression ◽  
Uniform Design Method

A series of milling experiments with and without cutting fluid, arranged by uniform design method, were carried out on rotor material. The influence of cutting fluid on cutting force and surface roughness was explored and compared for the two kinds of conditions. The associated model was established between cutting force & surface roughness and cutting parameters according to the linear multivariable regression method. The results show that the cutting force deceases with the increase of the cutting speed or with the decrease of the feed per tooth and the cutting depth. Cutting fluid has little effect on cutting force, and for surface roughness, the influence of cutting fluid is uncertain.

Uniform Design on the Forward Annular Shaped Charge of Torpedo Tandem Warhead

2014 ◽  
Vol 556-562 ◽  
pp. 1263-1266
Author(s):  
Lei FU ◽  
Wei Li Wang ◽  
Ying Zi Jiang ◽  
Xue Feng Huang ◽  
Jin Lv
Keyword(s):  
Penetration Depth ◽  
Design Method ◽  
Uniform Design ◽  
Shaped Charge ◽  
Opening Angle ◽  
Structure Parameters ◽  
Uniform Design Method ◽  
3D Software

By using LS-DYNA 3D software, the structure of forward annular shaped charge of torpedo tandem warhead is optimized in the simulation with uniform design method. During the simulation of annular shaped charge penetration into the plate underwater, the liner opening angle,liner thickness,charge height and charge angle are taken as factors, while the penetration depth is taken as index. The optimized structure parameters resulted form simulation can be used in the design of torpedo.

Study on Performance of Hot Pressed High Phosphorus-Boron Iron-Based Bit Matrix and Diamond Bit

2009 ◽  
Vol 416 ◽  
pp. 386-390
Author(s):  
Zhan Yang ◽  
Bing Suo Pan ◽  
Kai Hua Yang
Keyword(s):  
Regression Models ◽  
Design Method ◽  
Uniform Design ◽  
Rock Formations ◽  
Matrix Formula ◽  
Iron Based ◽  
Uniform Design Method ◽  
Bit Life ◽  
Diamond Bit ◽  
Matrix Hardness

Formula uniform design method was adopted to study the performance of iron-based matrix with high content of phosphorus and boron. Two forms of regression models on matrix hardness and wear resistance and the optimum matrix formulae were obtained respectively by regression analysis and constrained nonlinear programming using MATLAB. Regression analyses indicate that matrix hardness was mainly affected by the factor of Ni, Co and Fe; matrix hardness and brittleness increased with the increment of P-Fe alloy, but decreased with the increase of 663-Cu. These results can be used as a rough guide for design of highly adaptive diamond bits for different rock formations. After the indoor experiments, diamond bit based on 3# matrix formula was made to perform field drilling tests. The results were that the penetration rate was 1.91m/h and the average diamond bit life was 67.37m.

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