Construction and application of a multi-objective rolling horizon optimization mathematical model in intelligent dispatching for telecom operators by LI Fang, MA Xiaoliang, LIU Ying, LI Yuan, XIN Sheng

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RESEARCH ON MULTIPLE FAILURE MODES FOR RELIABILITY CALCULATION IN CRACK GROWTH LIFE BY SQP METHOD by SUN YuanTao, ZHANG ZengZeng, ZHANG Qing, QIN XianRong

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OPTIMAL SIMULATION DESIGN OF SPACEBORNE CONNECTOR by YU ChengYue, LIU Bo, WANG ChunPeng, XUE Chuang, AN MingXin

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Design of Planetary Gear Transmission Mechanism for Electric Actuator by Jianjun Nie, Yingjie Yu, Hongzhen Yan

Subjects: “…Multi-objective optimization mathematical model…”
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Application of Particle Swarm Optimization and Ant Colony Optimization integration in the Aerator Reducer Optimization Design by Wu Dongmin, Rui Yannian, Shen Ming

“…The Ant colony algorithm has the defects of premature convergence as its parameter selection greatly dependent on the personal experience.In order to solve the problem,a PAAA algorithm to optimization design the planetary gear reducer of the aerator is presented.To meet the constraints condition of structure and strength,taking the minimum volume and the highest efficiency of the planetary gear train as objective functions,its optimization mathematics model is established.The Matlab program is wrote to solve the mathematical model by using PAAA algorithm.The research results show that planetary gear train has smaller volume and higher efficiency under assuring the design requirements.The results also verified the PAAA optimization has the advantage of effective,accurate and reliable.…”
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Study on Optimal Design for Synchronizer by Zhang Yong, Huang Mingli, Wu Xuncheng, Zhang Juecheng, Zhang Tao

“…The optimization mathematical model is solved by APSO（ Adaptive particle swarm optimization） and the synchronizer life has greater increase than before optimization.…”
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Students’ Mathematical Literacy Skills in Terms of Learning Styles by Shinta Alfiatu Nadila, Herani Tri Lestiana

“…The objectives of this study are: 1) To analyze students' mathematical literacy skills in solving Two-Variable Linear Equation System (SPLDV) problems in terms of student learning styles; 2) To find out the factors causing the less than optimal mathematical literacy skills. The method used in this study is descriptive qualitative. …”
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RELIABILITY OPTIMIZATION DESIGN ON SHEARER’S RANGING ARM GEAR TRANSMISSION SYSTEM by LI FengJiang, ZHANG Jie, LIAO YingHua, LI QingChen

“…In the process of design shearer ’s ranging arm gear transmission system,by using the method of reliability design theory,derived gear strength and stress assumed to obey normal distribution when tooth surface contact fatigue strength and tooth root bending fatigue strength were taken as constraint conditions,and the volume of gear system as objective function,then genetic algorithm optimization toolbox of MATLAB was used to solve the optimization mathematic model. The results show that this method of optimization can improve gear transmission’s reliability,the volume and weight of gear transmission system are reduced too,which is beneficial to achieving products lightweight and reduceing production cost.…”
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Multi-objective Optimization Design for a Kind of Three-translation Parallel Robot Mechanism by Zhiyuan Ma, Wei Zhu, Hanbing Li, Kanrong Gu, Chuanwei Wang, Jiuwei Shi

“…A kind of 2RRPaR+PPaP three translational space parallel mechanism is designed, and the forward and inverse position solutions equation and Jacobi matrix of the mechanism are derived. The optimization mathematical model is set up with the optimization goal of workspace and global dexterity. …”
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Optimal Design and Analysis of Steering Mechanism of Manned Lunar Rover by Men Shudong, Wang Ping, Zhao Yang, Liu Chunlai

“…Based on Ackerman- geometry steering theory,the optimized mathematical model of the steering mechanism is established. …”
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DISCRETE VARIABLE OPTIMUM DESIGN FOR THE PRESSURE VESSEL BASED ON IMPROVED FIREFLY ALGORITHM by CHEN DingLiang, ZHUO HongMing, CHEN QianQing

“…In order to optimize the design of the pressure vessel,an optimization mathematical model was established. It takes the minimum quality of the pressure vessel shell as its optimization object,the inner diameter and wall thickness as its discrete design variables. …”
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Optimal Design of Double Circular Arc Cylindrical Gear Drive based on MATLAB by Wang Qinjun, Wu Zhiguang

“…Combining the optimization mathematical theory with Matlab,taking the double circular arc cylindrical gear drive as study object,the optimization design is carried out. …”
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Fuzzy Reliability Optimal Design of Multi-stage Planetary Gear Train with Multi-objective by Hao Liping

“…The problem of randomness and fuzziness of mechanical design could effectively dealed with through the fuzzy reliability optimization design which established by the combination of fuzzy mathematics method and mechanical optimization technique.Taking the multi-stage planetary gear train as research object,the optimization and allocation of transmission ratio is implemented by the conventional optimization design method.On this basis,taking the fuzzy reliability constraints as the main constraint condition,the volume,transmission efficiency and contact ratio as object,the multi-objective fuzzy reliability optimization mathematical model is established.Then the fuzzy reliability optimization design is transformed into conventional reliability optimization design through the multistage fuzzy comprehensive evaluation,and the optimization design is carried out by using Matlab optimization toolbox.…”
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Optimum Design of Load Capacity of Cycloidal Pin Wheel by Leilei Xu, Jianxin Su

“…In order to optimize its load capacity， an optimization mathematical model with the minimum contact stress and the maximum meshing stiffness is constructed by taking the pin tooth distribution circle radius， short amplitude coefficient， pin diameter coefficient and cycloidal wheel width as design variables. …”
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Analytical Investigation of Some Dynamical Systems by ZZ Transform with Mittag–Leffler Kernel by Mounirah Areshi, Muhammad Naeem, Noorolhuda Wyal

“…Fractional-order solutions are the most in line with the dynamics of the targeted problems, and they provide an endless number of options for an optimal mathematical model solution for a particular physical phenomenon. …”
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Optimization Design of Gear Parameter of a Tri-polar Parallel Gear Pump by Wang Shuangzhen

“…The optimization design of a tri-polar parallel gear pump is carried out by taking the minimum volume of the pump body as the objective function.In the mathematical model,the gear parameters such as modulus,tooth numbers,and thickness are taken as design variables,and the constraint condition is that the tri-polar parallel gear pump can meet the prescribed performance requirements.In the objective function,the volume of pump is replaced by the total volume of 4 mounting holes of addendum circles,which accurately reflects the volume of pump.In the process of solving optimization mathematical model,a new three-dimensional step-by-step search algorithm is proposed according to the characteristic that the formula of the objective function is very complex and the modulus,tooth numbers of gears are discrete variables.Thus an optimization algorithm for the tri-polar parallel gear pump designing is provided,and through an example,the feasibility and effectiveness of the algorithm are verified.…”
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Distance criterion-based quantizer design for cooperative spectrum sensing by Yuanhua FU, Zhiming HE

“…In terms of sensing node’s energy and reporting channel’s bandwidth constrains problem for cooperative spectrum sensing in cognitive radio networks,an optimal quantizer design method based on distance criterion was proposed.First of all,the Bhattacharyya distance of received quantized data at the fusion center (FC) was calculated as performance criteria,the optimization mathematical model of the quantizer was constructed,and the optimum quantization thresholds were obtained by using particle swarm optimization algorithm.According to received sensing nodes’ quantized data at the FC,a log-likelihood ratio detector was constructed to decide the presence or absence of primary user signal,the upper bound to sensing performance of energy detector that without quantization was derived.Compared with the existing methods in literatures,the performance of proposed 3-bit quantization method approaches to the upper bound performance of energy detector,under the premise of obtaining comparable detection performance,the requirement of communication bandwidth is reduced.…”
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LIGHTWEIGHT DESIGN OF A SMALL FAMILY CAR DISC BRAKE BASED ON ANSYS (MT) by WANG SuoGuo, SHEN JingHu, SHI Le

“…Aiming at the lightweight design of the disc brake for small family cars, the finite element analysis and multi-objective optimization of the disc brake were carried out.Through the sensitivity analysis, the contribution degree of each size parameter of the brake disc to the braking performance and quality was established, and the optimization variables were quickly selected.Taking the lightest weight of the brake disc, the lowest surface temperature of the brake disc and the minimum maximum equivalent stress as the objective function, a multi-objective optimization mathematical model was established. NSGA-II hybrid variant algorithm based on the control elite strategy in Ansys was used to optimize the brake disc. …”
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Multi-objective Optimization Design of RV Reducer Considering the Cycloid Gear Profile Modification by Wang Quan, Zeng Lilei, Qin Zhengzheng

“…In view of the fact that the influence of cycloid gear profile modification on contact force is not taken into account in the structural design of RV reducer，a multi-objective optimization design method for the structure of RV reducer considering cycloid gear profile modification is proposed.Combining the theory of tooth profile modification with the calculation of contact stress of cycloidal gear，considering the factors of volume，efficiency and contact stress，an optimization mathematical model with small volume，high efficiency and low contact stress of cycloidal gear as multi-objective function is established.The solution is carried out by using NSGA-II algorithm，and compared with single-objective optimization method.The results show that compared with the original design，the volume of RV reducer decreases by 21.24%，the efficiency increases by 2.03%，and the contact stress of cycloid wheel decreases by 20.26%.Meanwhile，the multi-objective optimization method has higher comprehensive performance than the single-objective optimization method.…”
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Feature Extraction and Wear Damage Degree Identification of Planetary Gear based on PSO-FC Optimization KPCA by Yan He, Zongyan Wang

“…When the planetary gear transmission system fails， its signal transmission is coupled with each other， and the nonlinear characteristic is presented， which makes the fault type and damage degree of the planetary gear to be difficultly recognized. The optimization mathematical model of the kernel function scale parameter is constructed by means of Fisher criterion（FC） discriminate function in pattern recognition， and the improved particle swarm optimization method is applied to the optimization to fully improve the analysis performance of the kernel principal component analysis（KPCA） for nonlinear problem. …”
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