Diesel Injector Fuel Injector 0445120568 compatible with diesel engine 5521671

Since the 21st century, the rapid development of grinding technology grinding, grinding and polishing ultra-precision; Grinding super high speed; Grinding automation, CNC, intelligent and virtual t %. Higher speed, precision and intelligent integration put forward higher requirements for grinding machine dynamic characteristics. The dynamic characteristic analysis and dynamic design of grinding machine is a very complicated process, and there is no complete theoretical system. At present, the main methods are the establishment of reasonable finite element dynamic model, the modification of dynamic model and the dynamic optimization design based on the correct dynamic model. With the formation of global economic integration, the market competition of machine tool industry is becoming more and more fierce. Foreign dynamic design started early. Many scholars used finite element analysis method to carry out dynamic analysis and optimization design of machine tool components (such as spindle and spindle system), and applied knowledge of other fields to dynamic design of machine tool, such as applying virtual reality technology to the modification of structural dynamic model, and some scholars applied composite materials to machine tool. But the foreign machine tool leading technology is mostly in Southeast University master's degree thesis secrecy. And in the machine tool structure optimization design, the domestic machine tool product design method is still in the experience, static comparison of the design stage, too little to consider the dynamic characteristics, new product development has not widely used structural dynamics modeling, optimization and other dynamic design methods, the quality of machine tools and production efficiency is limited. Specifically, researchers obtain the optimal value of the objective function by computer according to the set design variables and constraints, which can only be realized on simple structures and depends on the parametric modeling of structures.