Parameterized Modeling And Simulation Of Reducer Based On CATIA And ADAMS

Parameterized design is the core technology of modern CAD software. Parameterized design tools enable designers to be free from tedious design and drawings, and it improves the design efficiency.Virtual prototyping, as a new product developing technology, can shorten the product development cycle, reduce costs and enhance product performance and enhance their market competitiveness, accelerate the transformation of new technologies to new products before the actual product is created.In order to improve the quality and efficiency of the design of reducer, parameterized design, virtual prototyping technology and other modern means can be used to design reducer. In this thesis, with parametric design and virtual prototyping technology, the design and simulation analysis of reducer is implemented based on CAD/CAE software.1. Based on gear reducer design approach, design and calculation of the reducer are carried out, and the programming for design is performed. Users only need to input motor speed, power, and the output speed, and then the basic parameters such as gear teeth, modulus, pressure angle, tooth width and dynamic parameters of drive shaft and the size parameters of other parts can be generated with the formulas set in the procedures.2. Based on CATIA, the model of the secondary gear reducer is built. The gear, helical gear and other components are parameterized designed. Users only need to input the basic parameters, and then gear models can be correspondingly regenerated. On this basis, the library of parts such as gears, bearings and boxes are built. A virtual assembly and the interference analysis of reducer are work out through the assembly module of CATIA,3. A virtual prototype model of reducer is constructed. CATIA model data will be transformed into ADAMS through the interface between CATIA and ADAMS. A virtual prototype model is built after system constraints, load, drive and the contact forces are added in ADAMS.4. The simulation of the virtual prototype of reducer is done. The angular velocity, angular acceleration, meshing forces, and meshing frequency are studied. The theoretical values are calculated based on the theoretical formulas. A good coincidence between simulation results and theoretic calculated values proves that the virtual prototype is reliable and the simulation results are credible.