Study On Dynamic Characteristics And Light Weight Design Of New Type Lower Cylinder Crane

With the continuous development of social economy.The economic benefits of the port have a decisive effect on the development of its hinterland.The efficiency of the loading and unloading of the terminal,especially as the source of the entire terminal operating line,is designed to contain the development of the entire port.Efficient play cabin operation crane is a long-term in-depth study of the subject.As one of the most important parts of the crane boom is also widespread concern,its design is good or bad decision-making machine performance and cost of the key factors.In addition to the arm to have sufficient strength and stiffness,but also lightweight enough,and by optimizing the design to reduce the weight of the boom is the main method.In this paper,the research object is a new type crawler under the crane,carrying out dynamic characteristics of the study and lightweight design.Specific research processes include:First of all,to understand the status quo of research related to the content of the paper and clear the research ideas of the paper.Introduce the structural characteristics and working principle of the cabin crane,analysis of force analysis and motion characteristics of its boom,try to calculate the speed and acceleration expression in theory under any conditions.Secondly,modeling the boom in SolidWorks,for the subsequent dynamic simulation,finite element simulation and the lightweight design of the boom.Using Adams to establish a kinetic analysis model for boom.Extract the speed and acceleration of the telescopic arm at a special amplitude,and contrast with theoretical deductions to verify the correctness of theoretical derivation.Using Workbench to finite element static analysis of the boom,check strength and stiffness under different conditions.The safety of the boom is verified by dynamic mode analysis,prepare for the next step in weighting.At last,the dangerous cross section of the boom is optimized and the method is the variable density method in topology optimization to change the cross section to achieve the weight.Using Optistruct's topology optimization module to analyze the software,theoretically the optimal transmission path,combined with experience and actual production,the topology of the results of repair,re-modeling of the static simulation,check the weight of the model after the stiffness,strength and other properties...