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高温水蒸汽螺杆膨胀机管系振动分析及优化
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作者 马云剑 王亚洲 +1 位作者 韩冰 韩海彪 《压缩机技术》 2019年第3期46-50,共5页
螺杆膨胀机由于其优越的变工况适应性和高效性,广泛应用于余热、余压回收领域。围绕一台高温水蒸汽螺杆压缩机管系异常振动进行研究,采用CAESARII软件建立了膨胀机关系振动分析模型,以进排气管道脉动分析模型获得的气流脉动结果作为激发... 螺杆膨胀机由于其优越的变工况适应性和高效性,广泛应用于余热、余压回收领域。围绕一台高温水蒸汽螺杆压缩机管系异常振动进行研究,采用CAESARII软件建立了膨胀机关系振动分析模型,以进排气管道脉动分析模型获得的气流脉动结果作为激发力,在满足管口应力和热应力要求的前提下,实现对进排气管系的支撑结构进行优化。现场改造结果表明:优化后的支撑结构有效地减小管道振动,振动位移降低至改造前的31%,保证螺杆膨胀机的安全平稳运行。 展开更多
关键词 高温水蒸汽 螺杆膨胀机 振动分析
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Application of quaternion in visual simulation of rigid body motion
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作者 HUANG Jin-yang XIN Chang-fan +1 位作者 ma yun-jian JIA Yi-xian 《Journal of Measurement Science and Instrumentation》 CAS CSCD 2017年第1期32-36,共5页
In recent years,with the extensive applications of high performance computer and the rapid development of the attitude control of the spacecraft,quaternion theory has been widely used.Compared with Euler angles,quater... In recent years,with the extensive applications of high performance computer and the rapid development of the attitude control of the spacecraft,quaternion theory has been widely used.Compared with Euler angles,quaternion not only is simple calculation,but also can avoid the singularity problem of Euler angles,therefore it is widely used in the attitude control of spacecraft.In this paper,Simulink simulation technology is used to establish a rigid attitude simulation model with quaternion method and virtual reality scene by virtual reality modeling language(V RM L)is used to achieve attitude motion visualizationThe simulation results show that the Simulink simulation model can accurately reflect the attitude motion of the rigid body,which is valuable for the research of the attitude control of the spacecraft. 展开更多
关键词 rigid body attitude QUATERNION VISUALIZATION virtual reality
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