Optimization Design of Silent Chain Plate Inner Tooth Profile based on the Secondary Variation by An Lichi, Cheng Yabing, Li Yang, Li Xinyue, Gao Wang

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ANALYSIS ON THE INFLUENCES OF TOOTH PROFILE MODIFICATION ON DYNAMIC LOAD IN A SPLIT PATH TRANSMISSION by DING RenLiang, WANG SanMin

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Research on Correction Algorithms of Tooth Profile Error of Cycloidal Bevel Gear Formate Gear by Zhiyong Wang, Xiaolong Liu, Xin Liu, Yu Zhang

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Design of the New Flex Wheel Tooth Profile for Harmonic Drive Based on Transient Dynamics by Zheng Junjian, He Xueming, Li Pengchao

Subjects: “…Flexible tooth profile…”
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Modeling and Dynamics Characteristic Analysis of Helical Gear System with Considering Tooth Surface Friction by Kang Boqiang, Gou Xiangfeng

“…Based on Buckingham semi- empirical formula,the tooth surface friction coefficient variation with the meshing- point position is obtained. …”
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Validity of Digital Imaging of Fiber-Optic Transillumination in Caries Detection on Proximal Tooth Surfaces by Marja-Liisa Laitala, Liina Piipari, Noora Sämpi, Maria Korhonen, Paula Pesonen, Tiina Joensuu, Vuokko Anttonen

“…Materials and Methods. Proximal tooth surfaces of premolars and molars (n=2,103) of 91 voluntary university students aged from 18 to 30 years were examined with CV, BW radiography, and the DIFOTI method. …”
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Prediction Mathematic Model and Influencing Factors of Contact Stress of Cylindrical Gear with Arc Tooth by Qi Zhang, Guang Wen, Shuang Liang, Qin Tong, Li Hou, Guangchun Yang

“…Given the absence of a theoretical formula to analyze the influence of parameters on the contact stress of cylindrical gear with arc tooth, an explicit mathematical model of cylindrical gear with arc tooth between the design parameters and the contact stress is established based on Kriging surrogate model. …”
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The Association Between Periodontitis, Gingivitis, Tooth Loss and Stroke: An Umbrella Study with Meta-Analysis by Jad El Masri, Ahmad Al Malak, Diala El Masri, Maya Ghazi, Silva Al Boussi, Yasmina El Masri, Mohammad Hassoun, Maryam Tlayss, Pascale Salameh, Hassan Hosseini

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Tooth Surface Design of Spiral Bevel Gear with Considering the System Meshing Misalignment Quantity by Qin Qiuxia Li Li Wang Yonghong Chen Haoyu

“…The tooth surface contact mark (TCA), loading mark (LTCA), transmission error, relative sliding speed of tooth surface, temperature rise of tooth surface and assembly mark and running-in mark in engineering application are obtained, and the processing parameters of gear pair are generated. …”
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Research of the Finite Element Multi Tooth Contact of Spiral Bevel Gear with Different Load by Chen Zhiliang, Yang Rongsong, Liu Qiang

“…According to the mathematical model of milling tooth processing of spiral bevel gear,the tooth surface parameters of spiral bevel gear are obtained.The precise three- dimensional model is established.By using the ANSYS workbench software,the change rule of contact stress of spiral bevel gear with different load under multi tooth meshing state is analyzed.The more accurate contact stress of spiral bevel gear is obtained.The theoretical basis for gear fatigue life calculation is provided.…”
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Thermo-mechanical Coupling Simulation Analysis of Cycloid Gear Multi-tooth Form Grinding by Shi Enbing, Su Jianxin, Zhang Lifang, Deng Xiaozhong, Ren Xiaozhong, Cheng Chen

“…The cycloid gear multi-tooth form grinding is a gear finishing process，which can finish the processing of three tooth grooves at same time.In the process of high-speed grinding，high temperature will arise on the gear surface instantaneously，which may cause tooth surface burn.The temperature gradient formed by grinding temperature field will cause residual stress on the tooth surface，and the metallographic structure of cycloid gear tooth surface will change，affecting the grinding accuracy of the gear.The finite element method is used to simulate the temperature field of cycloid gear multi-tooth form grinding，and then the thermo-mechanical coupling analysis method is used to obtain the numerical simulation nephogram of the temperature field and thermal stress of cycloid gear form grinding.Through the analysis of the main stress of the grinding area，it can be seen that the stress is mainly concentrated at the grinding center near the root of the tooth，and the grinding area presents hot-pressing stress.In the ground area，the hot-pressing stress is converted into thermal tensile stress and gradually forms residual tensile stress，and the node stress also changes correspondingly with the change of grinding process parameters.The conclusion has certain research significance for predicting the distribution of temperature and thermal stress field during multi-tooth form grinding and reasonably selecting grinding process parameters.…”
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Research on Meshing Stiffness and Bearing Performance of Logarithmic Modified Composite Roller Movable Tooth by Yali Yi, Lei He, Liang Xie, Shuang Zhang, Herong Jin, Zhengxiang Zhou, Yazheng Zhou

Subjects: “…Movable tooth…”
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Evaluation of Online Measuring Gear Tooth Profile Error based on Gear Grinding Machine by Wang Zhonghou, Ma Yahe, Liu Xinrong, Cao Huan

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Study on the Mechanism of Tooth Breakage Fault in Gear Rotor System Under Load Excitation by Haihan Zhang, Fang Ren, Jinhao Feng

“…The dynamics mechanism of the first-order gearbox and its connected two-span rotor system under load excitation and broken tooth fault is studied. Because of the time-varying meshing stiffness of gears and the unbalance of the rotor system， the coupling mathematical model of the gear rotor system is established based on the rotor dynamics and Lagrange equation， and the simulation model is established in Matlab/Simulink. …”
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Study on Load Distribution of Involute Spline Pair in Tooth Direction Used in Power Split by Cheng Wang, Feihong Mao, Wei Hou, Peng Gui, Tiangang Zou

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Research of Tooth Profile Error Evaluation Method based on Cartesian Coordinate Measurement Method by Zhang Bai, Lin Jiachun

Subjects: “…Tooth profile error…”
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Multiple Failure Modes，Causes and Prevention of Random Fracture for Hard Tooth Flank Gears by Xiaolu Zhu

Subjects: “…Hard tooth flanks…”
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Analysis of Influencing Factors of Speed Fluctuation of Oval Arc Tooth Line Cylindrical Gears by Huang Jiaming, Song Aiping, Yu Chenwei, Qiu Zhou

Subjects: “…Oval arc tooth line cylindrical gear…”
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Application of an Endodontic Static Guide in Fiber Post Removal from a Compromised Tooth by Mehran Farajollahi, Omid Dianat, Samaneh Gholami, Shima Saber Tahan

“…This case report presents the saving of a compromised tooth with a fractured fiber post and a periapical lesion around the apex through the use of an endodontic static guide for fiber post removal. …”
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PROCESSING REMOVABLE ORTHODONTIC APPLIANCE FOR SINGLE TOOTH ANTERIOR CROSSBITE USING EXPANSION SCREW by Elly Rusdiana, Sianiwati Goenharto, Sasadhara Nirmala Ratna Harda, Sri Wahjuni, Sri Redjeki Indiani

Subjects: “…single tooth anterior crossbite…”
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