Analysis And Research Of Vibration Comfortableness Of Motorcycle

With the globalization of the market and the manufacture, the motorcycle industry of our country has been confronted with rigorous challenges on account of the insufficient competence of the independence innovation and development and the low-level technology. The vibration problem of the motorcycle puzzles our motorcycle manufacture enterprise for a long time. To avoid and reduce the vibration of the motorcycle is the key technology to increase the property and quality of the motorcycle, also is urgent affairs to realize product to develop independently in the motorcycle company. To reduce the vibration problem of the motor is the main way to solve the vibration problem of the motorcycle, and to match the whole vehicle with engine and moment of the crank-connect rod mechanism.It's an efficient way to use for reference,assimilate,absorb the foreign advanced manufacture technology, and enforce the capacity of the independent development and technology innovation in the motorcycle enterprises of China by using DMU technology to develop the motorcycle products. During the design phase, the kinematics, dynamics, strength, stiffness and vibration characteristic are simulated in the virtual environment. The capability matching and general optimization are realized. Therefore, the researches on the DMU technology of motorcycle have an important theory significance and practical merit in shortening the development period of products, reducing the cost, improving the design quality, boost the market competing capacity.The dissertation carried out the research on the problem which the enterprise is in dire need of solving. The main contents are the following:â‘ Base on advanced vibration test equipment and professional driver's evaluation, create the objective and subjective database of motorcycle and compile the motorcycle vibration evaluation standard.â‘¡Through test the combustion pressure graph of motorcycle engine, get the real stimuli that load on frame. Modifications the structure of motorcycle reduce the vibration of motorcycle.â‘¢The engine flex-suspension-rubber gasket is that one of cheap and effective method to control the vibration of motorcycle.â‘£The DMU technology is applied to the vibration-reducing analysis. The DMU model was built in the ADAMS environment. Analysis of suspension system and the acceleration RMS value of important position ,such as seat ,footrest and handlebar on motorcycle as optimization objective and technically make sure the best suspension structure and variables...