Research on Power and Brake Detection Integration of Wheeled Construction Machinery

2014 ◽  
Vol 945-949 ◽  
pp. 2126-2131
Author(s):  
Cong Cong Gong ◽  
Ming Lu ◽  
Hai Feng Ling ◽  
Bo Li
Keyword(s):  
Mathematical Model ◽  
Performance Test ◽  
New Method ◽  
Test Equipment ◽  
Treatment Efficiency ◽  
Large Area ◽  
Construction Machinery ◽  
Test Platform ◽  
Brake Performance ◽  
The Mathematical Model

The power and brake performance of wheeled construction machinery are separately detected on different test equipment in present chassis detection line. A new method is put forward in the veiw of high cost, large area occupied and low treatment efficiency of the traditional line. A DC dynamometer is provided as the power absorbing device and the reverse drag device to combine the two separate platforms in the proposed method, and the mathematical model of DC dynamometer is built based on the principle of chassis performance test. The parameter of dynamometer is determined by calculating, and power and brake detection integration of the wheeled construction machinery is achieved on the integrated test platform.

Influence of Tooth Errors and Truing Principles of Grinding Wheel Abrasion for Machining Arc Enveloping Worm

2013 ◽  
Vol 652-654 ◽  
pp. 2153-2158
Author(s):  
Wu Ji Jiang ◽  
Jing Wei
Keyword(s):  
Mathematical Model ◽  
Case Studies ◽  
High Precision ◽  
High Performance ◽  
New Method ◽  
Grinding Wheel ◽  
Grinding Process ◽  
The Mathematical Model

Controlling the tooth errors induced by the variation of diameter of grinding wheel is the key problem in the process of ZC1 worm grinding. In this paper, the influence of tooth errors by d1, m and z1 as the grinding wheel diameter changes are analyzed based on the mathematical model of the grinding process. A new mathematical model and truing principle for the grinding wheel of ZC1 worm is presented. The shape grinding wheel truing of ZC1 worm is carried out according to the model. The validity and feasibility of the mathematical model is proved by case studies. The mathematical model presented in this paper provides a new method for reducing the tooth errors of ZC1 worm and it can meet the high-performance and high-precision requirements of ZC1 worm grinding.

Mathematical Model and Algorithm of Soy Sauce Quality Evaluation Based on Fuzzy Clustering

2011 ◽  
Vol 55-57 ◽  
pp. 2018-2022
Author(s):  
Yu Feng Li ◽  
Chun Ling Wang
Keyword(s):  
Mathematical Model ◽  
Fuzzy Clustering ◽  
Quality Evaluation ◽  
Soy Sauce ◽  
New Method ◽  
The Mathematical Model

A mathematical model is created, and the algorithm is designed according to the fuzzy clustering. The main indices of the soy sauce samples are detected, and the data are analyzed using fuzzy clustering. As a result, many classes including different soy sauce sample can be obtained, and the quality within the same class is similar. The mathematical model and algorithm provide a method to identification the soy sauce. And in the others, it provides a new method to evaluate the quality of the soy sauce.

An Immunity-Based Algorithm for Distribution Center Location

2014 ◽  
Vol 971-973 ◽  
pp. 1537-1542
Author(s):  
Chao Ying Wang ◽  
Zhi Neng Liu
Keyword(s):  
Neural Network ◽  
Mathematical Model ◽  
Immune Algorithm ◽  
Distribution Center ◽  
New Method ◽  
Modern Logistics ◽  
Logistics System ◽  
Center Location ◽  
The Mathematical Model ◽  
Distribution Center Location

The distribution center is the bridge connected supply points and demand points, lies in pivotal status in modern logistics system. Firstly, the mathematical model of a distribution center location is established, based on the study of using neural network to solve distribution center location of the previous scholars, a new method is presented as well as the improved immune algorithm. A new affinity formula is designed for immunoselection criteria. Simultaneously, based on the mathematical model and cases, the algorithm is drilled concrete. A case shows that the improved immune algorithm can better solve the problem of the distribution center location.

Lapping Aspheric Workpiece Using Bending Method

2013 ◽  
Vol 331 ◽  
pp. 595-599
Author(s):  
Chun Min Shang ◽  
Dong Mei Zhang ◽  
Jian Dong Yang
Keyword(s):  
Mathematical Model ◽  
High Speed ◽  
New Method ◽  
Aspheric Surface ◽  
Shape Precision ◽  
Tool Shape ◽  
Forming Precision ◽  
Surface Precision ◽  
The Cost ◽  
The Mathematical Model

A new method is proposed that high speed lapping aspheric surface workpiece using lapping tool by means of bending because there processing difficult, In this study, the principle of high speed lapping has been presented, the mathematical model for the lapping tool has been established, and the equidistance curve error of the lapping tool has been analyzed. The results of the experiment indicate that the forming precision of the lapping tool is high using this method, the surface precision of the workpiece reaches micron grade, furthermore, the aspheric surface workpiece can been machined using this method in lapping, and that it can meet the need of medium precision of machining the aspheric surface workpiece. The experiment result indicates that the the lapping tool shape precision is high, the lapping error of the workpiece is 0.0108mm, and lapping efficiency is high and the cost is low. This aspheric lapping method has incomparable superiority of other processing methods.

Design on the Main-Axis in Big Power Inverted Umbrella Aeration Machine Based on Genetic Algorithms

2016 ◽  
Vol 693 ◽  
pp. 84-88
Author(s):  
Xiao Ping Li
Keyword(s):  
Complex System ◽  
Mathematical Model ◽  
Genetic Algorithms ◽  
Optimization Design ◽  
Main Axis ◽  
New Method ◽  
Coding Method ◽  
The Mathematical Model

Genetic Algorithms is a new method, which has good robustness in optimization design for complex system. In this paper, we make the mathematical model of optimization design for the main-axis in big power inverted umbrella aeration machine by studying Genetic Algorithms. Using coding method, we complete the optimization design of the main-axis in big power inverted umbrella aeration machine.

A New Method of Data Pre-Processing to Two-Way Satellite Time and Frequency Transfer Experiments

2013 ◽  
Vol 718-720 ◽  
pp. 1316-1323
Author(s):  
Chang He Wang ◽  
Wei Chao Li ◽  
Ji Kun Ou ◽  
Xu Hai Yang
Keyword(s):  
Mathematical Model ◽  
Simulated Data ◽  
Measured Data ◽  
Basic Theory ◽  
New Method ◽  
Accurate Detection ◽  
Frequency Transfer ◽  
The Mathematical Model

Based on the basic theory of two-way satellite time and frequency transfer (TWSTFT), the mathematical model on real errors of observations is established in this paper. However, the model is rank-deficient. In order to solve this problem effectively, the paper introduces the algorithm of combining parameters, and applies Quasi-Accurate Detection of Gross Errors (QUAD) proposed in reference [ to data pre-processing. The method programs opportune algorithms and resolves the problem of detecting gross errors. In the end, the method has been verified to be successful by calculating and analysing simulated data and practical measured data.

Reliability and Failure Analysis of CNC Machine Based on Element Action

2014 ◽  
Vol 494-495 ◽  
pp. 354-357 ◽  
Author(s):  
Gen Bao Zhang ◽  
Lian Zhang ◽  
Yan Ran
Keyword(s):  
Mathematical Model ◽  
Failure Analysis ◽  
Reliability Analysis ◽  
New Method ◽  
Cnc Machine ◽  
Cnc Machines ◽  
Motion Unit ◽  
Definition Of ◽  
The Mathematical Model ◽  
System Operating

Since the element action (e-action) is the smallest motion unit in realizing systems function, its reliability plays an important role in system operating ability. In this paper, a new method of CNC machines reliability analysis based on e-action is proposed. Firstly, the definition of e-action reliability is studied and the mathematical model is built. Then the methodology of FMECA based on e-action is introduced. Finally the grinding carriage feed movement is taken as an example to illustrate the methodology.

Grinding Hyperboloid Part by Bending Method

2014 ◽  
Vol 912-914 ◽  
pp. 976-980
Author(s):  
Chun Min Shang ◽  
Dong Mei Zhang ◽  
Jian Dong Yang
Keyword(s):  
Mathematical Model ◽  
High Speed ◽  
Difficult Problem ◽  
New Method ◽  
Face Shape ◽  
Shape Precision ◽  
Width Function ◽  
The Face ◽  
The Mathematical Model

In view of the machining difficult problem of hyperboloid, a new method is presented that high speed lapping hyperboloid parts using the bended lapping tool, and the principle of high speed lapping by the bending method is discussed. The mathematical model of bended lapping tool has been established using mechanics and higher mathematics, and the expression of width function of lapping tool is deduced. Analysis of the calculating example indicated that this method is possible to design the needed lapping tool. The bending experiment of lapping tool has confirmed the feasibility using this method, the biggest error of face shape was 1.0038μm, the face shape precision can satisfy the majority part request.

On Generation of the Specification Model for Concentricity Based on Mathematical Modeling

2011 ◽  
Vol 361-363 ◽  
pp. 1481-1485
Author(s):  
Hui Fen Liu ◽  
Mei Fa Huang ◽  
Lei Lei Chen ◽  
Bo Shi
Keyword(s):  
Mathematical Modeling ◽  
Mathematical Model ◽  
New Method ◽  
Functional Requirement ◽  
Geometrical Features ◽  
New Generation ◽  
The Mathematical Model ◽  
Product Specifications

Feature specifications are important composite parts in the new generation of geometrical product specifications and verification (GPS). According to the theories of specification model of shaft parts, this paper presents a method to generation of specification model of concentricity. Firstly, the mathematical model of concentricity is established in terms of nominal geometrical features of product for the parts the functional requirement are satisfied. Secondly, the simulation points of the model are generated by using the methods of axial stratification and circumferential multi-angles. The concentricity specification model could be generated after these operations of association and collection. Finally, an example is applied to illustrate the new method. The experiment results show the effectiveness of the proposed method.

A Study on UCAV Targets Assignment Based on Consensus Uncertain Detecting Information

2012 ◽  
Vol 503-504 ◽  
pp. 1235-1238
Author(s):  
Xia Chen ◽  
Zhen Yu Lu
Keyword(s):  
Mathematical Model ◽  
Assignment Problem ◽  
Research Topic ◽  
Mission Planning ◽  
New Method ◽  
The Mathematical Model

UCAV targets assignment is a key research topic in UCAV formation mission planning area. As UCAV targets assignment problem under uncertain detecting information, a new method is proposed in this paper. Firstly, the UCAV targets assignment problem under uncertain dectection information is described. Then, the mathematical model of UCAV targets assignment under uncertain detecting information is established and UCAV targets assignment with SMAA method based on uncertain detecting information is given after introducing the SMAA method. Finally, simulations are presented to demonstrate the effectiveness of this method.

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