摘要
针对山地风电叶片在运输过程中因牵引力和横纵坡等方面造成的失稳问题,通过Solidworks建立车组模型,利用flow simulation插件进行了运输工装流体分析,得出了不同风速、风向的风载荷对车组的作用情况,并且提出用一种新动力运输方式,在保证牵引力的情况下提高安全性,对横坡、纵坡情况下的工装举升补偿和工装自转补偿进行研究,拟合出其具体的补偿角度公式,并且对有可变配重的工装,拟合出具体配重位置补偿公式。结果表明:在不同风速、风向的风载荷对山地风电叶片运输的影响研究中,在风速逐渐增加过程中,总压与受力变化趋势均增大且变化趋势相同,由于山地风电叶片的翼型结构,横向流速呈直线增加,且不等于设置的环境速度。而对不同的风向研究中,横向风作用远大于纵向风作用,结合自走式液压平板车运输速度极小,因此,在实际中通常忽略纵向风作用。其次针对现有条件的多车牵引弯道通过性低的缺点设计出了一种多动力单元运输方式。在工装补偿仿真试验中,利用工装的自转与举升来对叶片运输中遇到的横纵坡进行补偿,采用公式拟合的方法得出在一定坡度下的具体补偿角度。在配重位置仿真试验中,通过拟合公式得出了在工装一定举升角度下的配重具体补偿位置。
Aiming at the instability problem of mountain wind turbine blade caused by traction force and transverse and longitudinal slope during transport,the vehicle group model is established by using Solidworks.The flow simulation plug-in is used for fluid analysis of transportation tooling.The effects of wind loads with different wind speeds and directions on vehicle group are obtained.In addition,a new power transportation method is proposed to improve safety while ensuring the tractive force.The lifting compensation and rotation compensation of tooling on transverse slope and longitudinal slope are studied.The specific compensation angle formula is fitted.For the tooling with variable counterweight,the specific compensation formula for counterweight position is fitted.The result indicates that in the study on influence of wind loads with different wind speeds and directions on mountain wind turbine blade transport,when the wind speed gradually increases,the variation tendency of total pressure and force increases,and the variation tendency is the same.Due to the airfoil structure of mountain wind turbine blade,the transverse velocity increases in a straight line,and it is not equal to the set environmental velocity.In the study on different wind directions,the transverse wind effect is much greater than the longitudinal wind effect.Furthermore,the transport speed of self-propelled hydraulic flatbed vehicle is very low,so the longitudinal wind effect is usually ignored in practice.Secondly,aiming at the disadvantages of low passability of multi-vehicle traction curve under existing conditions,a multi-power unit transportation mode is designed.In the simulation test for tooling compensation,the rotation and lifting of tooling are used to compensate the transverse and longitudinal slopes encountered in blade transport.The specific compensation angle with a certain slope is obtained by using formula fitting method.In the simulation test for counterweight position,the specific compensation position of counterweight with a
作者
林兰刚
丛鲁兹
何太碧
曾传华
尹鹏
LIN Lan-gang;CONG Lu-zi;HE Tai-bi;ZENG Chuan-hua;YIN Peng(Sichuan Dajian Transport Co.,Ltd.,Chengdu,Sichuan 610000,China;School of Automotive and Transportation,Xihua University,Chengdu,Sichuan 610000,China;Chongqing Xiaokang Power Co.,Ltd.,Chongqing 400000,China)
出处
《公路交通科技》
CAS
CSCD
北大核心
2024年第5期143-151,共9页
Journal of Highway and Transportation Research and Development
