The Design of a Small Composting System and Turning Device

2014 ◽  
Vol 496-500 ◽  
pp. 869-872
Author(s):  
Tan Wang ◽  
Hong Bing Xin ◽  
Zi Yun Xue ◽  
Quan Lai Li ◽  
Deng Qi Cui ◽  
...  
Keyword(s):  
System Design ◽  
Mechanical System ◽  
Basic Principle ◽  
Design Requirements

This paper introduces the basic principle, the compost system design requirements, and to introduce biodegradable composting system and design. At the same time design the structure and layout of a small biodegradable compost pool. Base on introducing the small turning device to complete a small spiral turning device of the mechanical system design.

Supporting Negotiations in the Early Stage of Large-Scale Mechanical System Design

2005 ◽  
Vol 127 (6) ◽  
pp. 1056 ◽  
Author(s):  
Ping Ge ◽  
Stephen C.-Y. Lu ◽  
Satish T.S. Bukkapatnam
Keyword(s):  
System Design ◽  
Mechanical System ◽  
Large Scale ◽  
Early Stage

An Optimization Based Methodology to Design Flexible Systems Subjected to Changing Operating Conditions

2005 ◽  
Author(s):  
Ritesh A. Khire ◽  
Anoop A. Mullur ◽  
Achille Messac
Keyword(s):  
Optimal Design ◽  
System Design ◽  
High Performance ◽  
Systematic Approach ◽  
Operating Conditions ◽  
Flexible Systems ◽  
Operating Life ◽  
Design Requirements ◽  
High Performance Level ◽  
Critical Aspects

Flexible systems maintain a high performance level under changing operating conditions or design requirements. Flexible systems acquire this powerful feature by allowing critical aspects of their design con guration to change during the operating life of the product or system. In the design of such systems, designers are often required to make critical decisions regarding the exible and the non-exible aspects of the design con guration. We propose an optimization based methodology to design exible systems that allows a designer to effectively make such critical decisions. The proposed methodology judiciously generates candidate optimal design versions of the exible system. These design versions are evaluated using multiobjective techniques in terms of the level of exibility and the associated penalty. A highly exible system maintains optimal performance under changing operating conditions, but could result in increased cost and complexity of operation. The proposed methodology provides a systematic approach for incorporating designer preferences and selecting the most desirable design version — a feature absent in several recently proposed exible system design frameworks. The developments of this paper are demonstrated with the help of a exible three-bar-truss design example.

ITER Shield Block Cooling System Design and Analysis

2013 ◽  
Author(s):  
Weishan Kang ◽  
Tao Yuan ◽  
Xiujie Zhang
Keyword(s):  
System Design ◽  
Strain Distribution ◽  
Cooling System ◽  
Temperature Fields ◽  
Stress And Strain ◽  
Hydraulic Analysis ◽  
Design Requirements ◽  
Transient Thermal ◽  
Cooling Pipes ◽  
Stress And Strain Distribution

A steady-state thermo-hydraulic analysis of SB was done to get pressure drop and heat transfer coefficient in the cooling pipes, then a transient thermal analysis was performed to get temperature field of the SB with time in Inductive plasma operational scenario. Finally static structural analysis of the SB based on the temperature fields obtained with the transient analyses at specific time points were done to get the stress and strain distribution of the SB. The numerical analysis results were investigated by rules from ITER System Design Criteria for In-vessel Component to further verify the design. The final results of analyses indicate that the design of the SB meets with the ITER design requirements.

Study of AP1000 Protection System Based on FirmSys

2017 ◽  
Author(s):  
Zheng Wei-zhi ◽  
Sun Hong-tao ◽  
Liu Jing-bo ◽  
Ma Ji-qiang ◽  
Liu Yuan
Keyword(s):  
System Design ◽  
System Architecture ◽  
Control Method ◽  
Protection System ◽  
Architecture Design ◽  
Layout Problem ◽  
Design Requirements ◽  
Safety Features ◽  
System Architecture Design

In order to design AP1000 protection system based on the FirmSys platform of CTEC, the AP1000 protection system based on CommonQ platform is analyzed and researched. Through the comparison of the FirmSys platform and the CommonQ platform, it is found that the number of cabinets should be increased largely if the protection system design based on the FirmSys platform refers to Westinghouse AP1000 protection system architecture. So that the cabinets can not be laid out in the electrical room due to the AP1000 electrical room space constraints. In order to solve this problem and to achieve the required reliability, the optimization of the emergency reactor trip and engineered safety features actuation control method based on FirmSys platform is studied. At last a new protection system architecture design is completed. It is proved that the optimized protection system architecture, in which the number of cabinets is reduced and the reliability is improved, not only can solve the cabinet layout problem, but also can meet the design requirements of AP1000.

Collaborative Simulation Environment for mechanical system design

2011 ◽  
Vol 13 (1) ◽  
pp. 38 ◽  
Author(s):  
Haiwei Wang ◽  
Geng Liu ◽  
Xiaohui Yang ◽  
Zhaoxia He
Keyword(s):  
System Design ◽  
Mechanical System ◽  
Simulation Environment ◽  
Collaborative Simulation

Based on ARM of AC LED Intelligent Lighting System Design

2014 ◽  
Vol 1037 ◽  
pp. 313-316
Author(s):  
Yu Lan Qi
Keyword(s):  
System Design ◽  
Infrared Detectors ◽  
Acoustic Sensor ◽  
Lighting System ◽  
Led Lighting ◽  
Control Signals ◽  
Signal Collection ◽  
Design Requirements ◽  
Drive Circuit ◽  
Ac Led

based on the infrared detectors, brightness sensor, acoustic sensor sensing device for the lighting area, For signal collection, transform acquisition signal through conversion circuit and send to STM32F103 chip, control signals by microcontroller control drive circuit. According to the characteristics of the AC LED circuit, drive circuit with bidirectional thyristor as a core device design, the system can realize AC LED lighting intelligent open a brightness control. Testing by the actual circuit, circuit work is stable and reliable, has reached the design requirements.

Research on Coordinated Simulation of Marine Parallel Stable Platform Based on Adams and Matlab

2013 ◽  
Vol 740 ◽  
pp. 146-151
Author(s):  
Bin Cheng Li ◽  
Xiao Fan Li
Keyword(s):  
Control System ◽  
Dynamic Analysis ◽  
System Design ◽  
Mechanical System ◽  
Parallel Mechanism ◽  
Driving System ◽  
Design And Optimization ◽  
Fundamental Knowledge ◽  
Hydraulic Cylinders ◽  
And Control

In the paper, parallel mechanism is applied to Marine stable platform field. The integrated model,which consists of mechanical system, hydraulic driving system and control system, is established by the software of dynamic analysis of mechanical system (Adams) and Matlab/Simulink. The simulation result shows the decent capability of hydraulic cylinders length tracking, however further improvement can be made. This research provides valuable and fundamental knowledge for the system design and optimization.

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