Applied Mechanics and Materials Vol. 251

Abstract: In the dynamic design of spindle system, the better effect should be achieved by optimizing multi-parameters synthetically. A spindle system has numerous design parameters. It is not advisable to optimize every design parameter. So, it is quite essential to analyze the influence extent and their correlation of these design parameters on the system dynamic rigidity. Taking the hob spindle system of YK3610 as an example, an analyzing method based on the orthogonal test is introduced in this paper. In this analysis, the dynamics model of system is built by transfer matrix method. Finally, a multi-parameters optimizing demonstration is provided.

Abstract: On the basis of silk fabric product specifications, making use of programming software to deal with product information, complete the complicated process calculation, realize the connection and running of products information database with the front desk inquiry calculation software. The system can achieve the number of all kinds of machines by automatic accounting according to the requirements of the design, and realize variables to be automatically selected such as the spindle number, efficiency, working hours and linear velocity. Automatically plot and analyze the variation trend of mechanical number in different fabric situation when the number of loom or annual output equality variation. The system contribute to production manager configure the process equipment rapidly and estimate the production ability.

Abstract: The ball mill is the important equipment in the mining industry, with the development of the macro-scale ball mill, and is more difficult of liner’s wearing,installation and taking apart. The service life which raises a liner will prolong the production period that the ball mill, influencing an economic benefit of the concentrating mill. Therefore, it is of great significance for dynamics simulating on the grinding ball, studying of grinding ball on dynamics characteristic and improving the liner shape,reducing relative slide, and extending the liner’s age.

Abstract: In order to improve the vehicle reliability after the repair，the paper analyzes the importance of body measurement in the body repair. It explains the control points, datum, the center surface and zero plane of body measurement, and puts forward the visual observation, general tools measuring method and computer measurement method based on existing measurement methods of body repair. Moreover, this paper researches the using range and measurement features of the three methods, explains the data of body size and the using of the measurement tools. Finally, in order to improve the efficiency and quality of body repair, this paper chooses the reasonable methods to measure based on the body damage and repair parts.

Abstract: Creat and keep a good living environment is everyone’s responsibility. However, in the high-stressed society, people are driven to be more effective, many disposable products come into being, such as, plastic bottles, plastic products, styrofoam, etc. They are common in low price, and handy enough. Meanwhile, Users are tend to foster the habit of throwing waster about ,which is not only a waste of resources, but also a serious environmental problem. Therefore, it is quite important to classify the garbage and recycle the resources, and transfer the "throwing after using immediately" society into a sustainable society. Hence, the interdisciplinary cooperation method in the design and engineering field to design and develop the productis employed in this thesis.Then, based on the technical feasibility evaluation and the production of the prototype, functions of the products have been checked and achieved. Thus, it can be used to recycle the resources and reate a high quality living environment, further promote the new concept of environmental protection.

Abstract: It was presented how to design a management system under FreeBSD. The system can be used in Mechanical devices to authenticate and charge the client through PPPoE based on RADIUS.And the built-in batch card generation, management functions can help in the number of user connections and bandwidth control,thus to achieve powerful management capabilities and user self-management capabilities.

Abstract: A majority of information in manufacturing is the process information which presents mobility. Such information reflects transforming process form materials to products. This research establishes a manufacturing process information model that presents uniqueness, validness, completeness and generality based in PSL. The model can provide necessary process information and related product, material and resource information required by systems for integrating and collaborative decision making. It then enables to build a collaborative manufacturing decision making process model which is capable of utilizing the process information model. By defining logic procedure, data wrapping and service invoking in the decision making process model, multi-manufacturing systems collaborative decision making will be implemented. Such method of manufacturing process information modeling and decision making process modeling is illustrated by examples of the collaborative creation of a part process plan and an assembly process plan considering actual manufacturing environment.

Abstract: Oil-drilling derrick is the most important integrant of the equipments in oil industry and is also a giant load bearing structure. In this paper, the 3D geometric model of the derrick is created by commercial finite element analysis (FEA) software ANSYS, and the static stresses under several working conditions are analyzed. The displacement and stress distribution of the derrick acquired can lay the theoretical basis for the optimization design of structural and material choices of the derrick further.

Abstract: The aim of the maintenance allocation is to allocate the maintenance time of the subsystems reasonably and accurately. Traditional MTTR (mean time to repair) allocation methods are most often based on the products’ complexity. However, there are a lot of deficiencies in practical application. To allocate the system MTTR of the subsystems more precise and reasonable, a better model is needed. The aim of this paper is to develop an improved model to allocate the maintenance time, as well as picke out the common maintenance time and allocating e the MTTR in the subsystems more accurately.

Abstract: Turbocharger exhaust device is in controlling exhaust speed device. The controllable exhaust device is to improve the turbocharger in the low-speed running of the engine torque output and high speed power output device. Parts processing in a controllable exhaust device and the whole installation process has two problems to be solved. A problem is a rotating plate deflector rod in the assembly welding processing. Another is mounted in the assembly. The solution is improved the structure of apparatus and parts. It is including exhaust control rotor structure, the drive ring structures and devices in the corresponding connector design. Integral casting of the rotor lever is used to replace welding rotary sheet shifting rod. The whole assembly structure design is used to replace the combined assembly. The controllable exhaust device is integral installation structure design. To solve the problem is assembly again assembly problem.