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Research on Vibration Characteristics of Roadheader Cutting Unit Based on Virtual Prototype Technology

Author: WangChengYun
Tutor: ZhaoLiJuan
School: Liaoning Technical University
Course: Mechanical Manufacturing and Automation
Keywords: Boring machine Cutting Unit Virtual prototyping technology Coupled Rigid and Flexible Vibration characteristics
CLC: TD421.5
Type: Master's thesis
Year: 2009
Downloads: 138
Quote: 0
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Abstract


Roadheader hard rock tunnel boring , poor working conditions and complex load , making the physical prototype test risk - based and costly , and the use of virtual prototyping technology for modeling and simulation of the performance of the product before the physical prototype generation comprehensive assessment to obtain the optimized system-level products . Established work in complex coal seam conditions roadheader rigid - flexible coupling the virtual prototype vibration model ; Matlab software to simulate the frequency components of the actual working conditions through the construction of virtual prototyping technology environment ADAMS core frequency domain signal load curve , and added to the virtual prototype model ; ADAMS / Vibration module prototype model of the boring machine vibration simulation analysis ; extracted from the turret of the low-level mode shapes by applying a harmonic signal and random signal boring machine vibration characteristics and frequency ; forecast proposed excitation frequency should be noted that in practical work ; Finally, based on load fluctuation coefficient smallest part of the parameter optimization of the cutting unit , and the re - simulation , view and comparison the optimized cutting the vibration performance of the Ministry to improve the situation . This paper studies the roadheader optimization of the system to provide a clear quantitative basis , which put forward the optimization program , improved design helps to have complete control of the product's performance before physical prototyping greatly reduce the research and development of new products a new method and means of cost , design and research work in the complex environment of large - scale mining equipment , has a great prospect .

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CLC: > Industrial Technology > Mining Engineering > Mining machinery > Mining machinery > Underground mining machinery > Boring machine
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