| 摘要 |
<P>PROBLEM TO BE SOLVED: To execute an appropriate vibration control as a variable vibration isolation system in response to a loading condition even though a condition for loading or transporting parts is changed. Ž<P>SOLUTION: The variable vibration isolation system 10 includes a vibration isolation mechanism 20 which is arranged between a floor 8 and part container body 14 allowing part 12 to be mounted thereon and which contains a spring aggregate having a plurality of spring bodies with different spring constants, a measurement part 16 for measuring the vibration acceleration of the floor 8 and a control part 30. The control part 30 specifies a vibration isolation frequency through the frequency-analysis of measured vibration acceleration and calculates a vibration isolation spring constant corresponding to the vibration isolation frequency on the basis of mass m<SB>1</SB>of the part container body 14 and mass m<SB>2</SB>of the part 12 to acquire a connection relationship between a plurality of spring bodies so as to make a total spring constant between the floor 8 and a part container body 14 to become the vibration isolation spring constant. The total spring constant between the floor 8 and part container body 14 is changed to the vibration control spring constant through the change of the connection relationship between respective spring bodies. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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