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Pang Y.,Harbin Engineering University | Wang Q.,Harbin Engineering University | Wang Q.,Kunming Shipbuilding Equipment Co. | Li W.,Harbin Engineering University | Wang J.,Harbin Engineering University
Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | Year: 2017

In this study, we performed a constraint model test, in which we applied a vertical planar motion mechanism (VPMM) to a submarine model with and without a propeller in a circulation tunnel. We then analyzed and fitted the non-dimensional linear hydrodynamic coefficients. In our comparison, we found that the hydrodynamic coefficients Y'δr, M'δs, Z'δs, N'δr and the hydrodynamic coefficients of the rudder angle, N'δr of the submarine model with a propeller were decreased by 17.33%, 36.33%, 16.10%, 30.51%, and 24.25%, respectively. However, the rudder angle hydrodynamic coefficient N'δr increased by 16.45% compared with that of the submarine model without a propeller, and the other changes in the hydrodynamic coefficients were generally within the 10% range. These results show that the propeller and its rotation do influence the hydrodynamic coefficients of submarine maneuverability. © 2017, Editorial Department of Journal of HEU. All right reserved.

Wang W.P.,Kunming University of Science and Technology | Yang M.,Yunnan Testing Institute of Product Quality Supervision | Li T.,Kunming University of Science and Technology | Li T.,Kunming Shipbuilding Equipment Co. | And 2 more authors.
Applied Mechanics and Materials | Year: 2014

Artificial bee colony algorithm is a new meta heuristic bionic algorithm.Each bee can be viewed as an agent in the algorithm.Through the swarm synergies between the individual achieve the effect of swarm intelligence.Based on the analysis on the principle of bees gather honey,the process of solving functional optimization is converted into the process of swarm finding rich food sources,then we can solve the function.With the arrival of 4G Era,Base station construction is the most crucial step of the mobile communication network popularization, its significance and role should not be underestimated.How to realize the optimization of communication base station construction costs has been the research focus of the mobile service operator and colleges and universities.The artificial bee colony algorithm is applied to solve the optimal solution of base station construction scheme in this paper,which is very critical reference for decision in real base station construction. © (2014) Trans Tech Publications, Switzerland.

Tao Y.-F.,Kunming University of Science and Technology | Chen J.-R.,Kunming University of Science and Technology | Liu M.-H.,Kunming University of Science and Technology | Liu X.-X.,Kunming University of Science and Technology | Fu Y.-L.,KunMing Shipbuilding Equipment Corporation Ltd
Proceedings - 2010 IEEE 17th International Conference on Industrial Engineering and Engineering Management, IE and EM2010 | Year: 2010

This paper presents a research of unidirectional AGVS (automated Guided Vehicles System) with battery management in a flexible manufacturing system (FMS) based on simulation. Although battery management is important for vehicle management, this problem is usually omitted in research. It is difficult to research the AGVS in FMS from using an analytic method. So in this paper, a parameterized simulation model of AGVS with battery management is built by using computer simulation. The result verified the reliability of the AGVS, and can be used in the future design. © 2010 IEEE.

Xiao R.,Kunming University of Science and Technology | Li T.,Kunming University of Science and Technology | Li T.,Kunming Ship Building Equipment Co. | Zou G.,Kunming University of Science and Technology | And 2 more authors.
Qiche Gongcheng/Automotive Engineering | Year: 2013

To determine the energy management strategy (EMS) for a series-parallel hybrid electric vehicle (SPHEV) with stochastic dynamic programming (SDP), the dynamic equations for its power-train and the Markov model for its required power are set up. With the minimum fuel consumption as objective while preserving battery capacity, the EMS for SPHEV is obtained with SDP and implemented online. The results of simulation show that the fuel economy with EMS based on SDP is slightly inferior to that based on ordinary DP, but with SDP-based EMS the battery capacity tends to vary more smoothly, being conducive to the protection of battery.

Qin Y.,Kunming University of Science and Technology | Qin Y.,Kunming Shipbuilding Equipment Co. | Li T.,Kunming University of Science and Technology | Li T.,Kunming Shipbuilding Equipment Co. | And 2 more authors.
Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) | Year: 2013

An approach is proposed to establish a mobile transfer multi-robots system structure in which include modeling, simulation, runningtime and evaluation. This kind of structure was suited to engineering application. The architecture of multi-robots system was abstracted as layered architecture. And all of the host computer, base control and transfer multi-robots in system are abstracted as intelligent agent. In order to make every intelligent agent which including in any layer has ability of dynamic operation, a resolver and a runningtime are disposed in any intelligent agent. The system using this structure was applied to many projects. Tow of them for example was taken and analyzed. The result shows that this kind of system structure achieved mobile transfer multi-robots systems quick establishment, quick evaluation, quick revision and quick bring into effect. It is beneficial to transfer multi-robots systems engineering application.

Tao Y.,Kunming University of Science and Technology | Chen J.,Kunming University of Science and Technology | Liu M.,Kunming University of Science and Technology | Liu X.,Kunming University of Science and Technology | Fu Y.,KunMing Shipbuilding Equipment Corporation Ltd
Proceedings - 2010 3rd IEEE International Conference on Computer Science and Information Technology, ICCSIT 2010 | Year: 2010

One of the many design and control issues of Automated Guided Vehicles System (AGVS) is the AGV fleet size. This paper presents a new solution method to determining the number of vehicles in the AGVS based on Flexible Manufacturing System (FMS). The approach relies on two procedures-estimate and simulation. With estimate procedure, the mathematic method will be used to estimate the AGV fleet size. In the next procedure, the estimate value will be used in the simulation model of AGVS for further study. The reliable number of vehicles can be reached after two procedures. The objective of this paper is to increase the efficiency and accuracy of the process in determining the AGV fleet size. © 2010 IEEE.

Xiong A.,China Tobacco Henan Industrial Co. | Peng G.,China Tobacco Henan Industrial Co. | Yao G.,China Tobacco Henan Industrial Co. | Ding M.,China Tobacco Henan Industrial Co. | And 7 more authors.
Tobacco Science and Technology | Year: 2015

Aiming at the problems of uneven casing, low casing utilization and tobacco buildup on cylinder wall associated with traditional casing cylinder, a double side injection casing system for thin layer material was developed. The casing system was mainly composed of loosening and distributing device, high-speed thin layer spreading device, double side multi-point injection casing nozzles, filtration adsorption device, etc. Strips were spread to form a continuous strip curtain, casing was injected via nozzles on both sides of the strip curtain to ensure casing uniformity. The floated atomized casing droplets were drawn through the strip layer by means of suction air, and the utilization of casing was promoted by the filtrating adsorption of strip layer. The casing chamber was in the form of asymmetric perforating hood to keep the pressure in balance between inside and outside of the chamber and minimize the contact between strips and chamber wall. For casing cigarette brand "Golden Leaf" (YDH), the new casing system and casing cylinder were compared in terms of processing quality, product quality and the consumption of energy and material. The results showed that, the new system's casing precision was 0.08%, its casing uniformity coefficient and casing utilization increased by 1.69 and 13.7 percentage points respectively, the amount of tobacco buildup on the wall reduced by 4.1 kg/shift, the score of cigarette sensory quality raised by 0.5 points, and the comprehensive processing cost saved by 6.97 RMB yuan per case. © 2015, Editorial Office of Tobacco Science and Technology. All right reserved.

Han W.T.,Northwest University, China | Xu Z.Q.,Kunming Shipbuilding Equipment Co. | Zhang Y.,Northwest University, China | Cao P.,Northwest University, China | And 2 more authors.
International Journal of Agricultural and Biological Engineering | Year: 2014

Rapidly acquiring and real-time transmitting crop water requirement information constitute the basis for achieving intelligent diagnosis and precision irrigation. In order to collect and transmit crop water requirement information at real time, a new microcontroller-based real-time remote monitoring system was designed, including system hardware design, software and anti-jamming design. The system achieved the functions including clock reading, information configuration, LCD display, keyboard control, data sending and receiving, multi-channel information acquisition, conversion and storage. Laboratory and field tests showed that the system can achieve data acquisition and real-time display of the crop water requirement information. Unlike the current weather station, the system collects crop water information, meteorological factors and soil parameters at the same time. It has a high level of stability and acquisition accuracy, and can meet the requirements for real-time remote monitoring of the crop water requirement information for irrigation decision-making. © 2014 Chinese Society of Agricultural Engineering. All Rights reserved.

Du X.-X.,Northwestern Polytechnical University | Cui H.,Northwestern Polytechnical University | Xiang Z.-H.,Kunming Shipbuilding Equipment Co.
Binggong Xuebao/Acta Armamentarii | Year: 2016

A coordinate system for wave-driven underwater vehicle is defined based on multi-body system dynamics theory. The kinematics analysis of the whole system is performed by choosing the appropriate generalized coordinates, while the velocities and acceleration are deduced, and the expressions of partial velocities and partial angular velocities are deduced based on Kane's method according to the dynamic analysis of the whole system. The generalized inertial force and generalized active force of the whole system are calculated. A multi-body system dynamics model of wave-driven underwater vehicle is established by taking the calculated results into the Kane's equations. The force analysis of the proposed model focuses on the wave force and the additional mass force of multi-body system besides inertia force, inertia moment, gravity, buoyancy and hydrodynamic forces. The wave-driven underwater vehicle is simulated. The simulated results show that the proposed modeling method is valid. © 2016, Editorial Board of Acta Armamentarii. All right reserved.

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