Research on Jib Performance of Crane in Hoisting Wind Generator
- PDF / 1,374,239 Bytes
- 9 Pages / 595.276 x 790.866 pts Page_size
- 60 Downloads / 185 Views
TECHNICAL ARTICLE—PEER-REVIEWED
Research on Jib Performance of Crane in Hoisting Wind Generator Lin-jiang Zhao . Yi-xiao Qin . Li Zhang
Submitted: 28 March 2020 Ó ASM International 2020
Abstract All-terrain crane is indispensable for hoisting land wind turbines safely. Because the lifting height, load and lateral dimension during the safe hoisting process of the wind turbine are relatively large, the special jib structure of the all-terrain crane for hoisting wind turbine safely is adopted to solve the problem of interference between the crane jib and the wind power equipment. In view of the unfavorable stress of special jib structure and wind load of special jib structure working environment. On the one hand, the overall finite element model of the all-terrain crane jib for hoisting land wind turbines is established. On the other hand, to combine with the actual load in the lifting process and study the static and nonlinear performance and mode of the boom structure. At last, the mechanical properties of the jib structure are analyzed. This research is very important to improve the safety of wind power lifting. Keywords All-terrain crane Hoisting wind turbine generator Wind load Nonlinear analysis
L. Zhao Y. Qin (&) L. Zhang School of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China e-mail: [email protected] L. Zhao e-mail: [email protected] L. Zhang e-mail: [email protected]
Introduction With the wide application of clean energy wind power, the hoisting of wind power equipment brings us great challenges. And the frequent occurrence of hoisting accidents also brings a lot of adverse effects to the society. The mechanical performance of key components of all-terrain cranes commonly used in onshore wind turbine hoisting is directly related to the safety of hoisting operations. In the last century, Germany developed the first all-terrain crane in the world. With its combination of truck crane and crosscountry crane, Germany occupied the market of engineering crane industry. China’s all-terrain cranes did not begin to develop until the 1980s. Thirty years later, the 2010 Bowman exhibition was successfully held in Shanghai. XCMG and all its heavy machinery products have demonstrated the extraordinary strength of China’s crane industry to the world’s construction machinery, as well as a major leap forward in China’s crane technology [1]. Lu et al. established the deflection differential equation of the crane telescopic boom model in an article. Under appropriate boundary conditions, the recurrence formula of the buckling characteristic equation is given, and some practical applications are provided. The influence of the ratio of cable length to boom length on the critical buckling force of boom is discussed. Taking a four-section telescopic arm as an example, the critical buckling force is calculated. The results show that compared with ANSYS method, the buckling characteristic equation established by him is completely correct [2]. These advances have played a huge
Data Loading...
