Development Of Technology Superamplitude Suppression Mechanical Vibration Test Bench

The vibration test bed is a standard test equipment used to test the mechanical properties of various industrial products and engineering facilities.The vibration test bed simulates the various environments in which the product is manufactured,assembled,transported and used.It is an important role in the research,development and manufacture of electronic,mechanical,photoelectric,aviation and other fields.Vibration test bed as the vibration of the end of the signal output,the vibration characteristics of the excellent will directly affect the accuracy of the product vibration test.Shaking the vibration of the machine itself will also affect the performance of its equipment and life.Based on the analysis of the existing characteristics of various types of vibration table at home and abroad and its development status For the existing mechanical vibration table frequency cannot achieve the problem of mutation.When the drive frequency through the natural frequency of the vibration table,a resonance phenomenon occurs,and then the vibration of the table on the fixed experimental components damaged,or vibration test data is not reliable and so on.On the basis of the principle of vibration,according to the requirements of the experimental indicators,through the use of new excitation and new eccentric structure,through the use of wireless devices.A new type of eccentric wireless adjustment mechanism shaking table with high load capacity,high upper limit frequency,small amplitude near resonant frequency and small acceleration waveform distortion is designed.Through the deep theoretical research,the dynamic model and the control system of the vibration table are established,and the simulation analysis is carried out.The validity and rationality of the control system are verified,which lays the foundation for the optimization of the new vibration table.Finally,through the experimental study,it is further verified that the new mechanical vibration table can meet the corresponding technical indexes and solve the resonance problem.