Vibration suppression device, machine tool, and vibration suppression method

A vibration suppression device of a structure, the vibration suppression device comprising:

• a flexible member having a first position fixed to the structure to be a fixed end of a cantilever and a second position on a free end side;
• and
• a weight attached to the flexible member in the second position,
• wherein the vibration suppression device has an adjustment mechanism for changing a distance between the first position and the second position,
• wherein the weight is disposed in a space provided inside the structure so as not to come into contact with the structure,
• wherein the flexible member is attached to a base plate in the first position, and the base plate is fixed to the structure, and
• wherein a through hole is formed in the base plate, and the flexible member is inserted into the through hole so as to protrude from both sides of the base plate, and the distance between the first position and the second position is changed by changing relative positions of the flexible member and the base plate.

A vibration suppression device of a structure, the vibration suppression device comprising:

• a flexible member having a first position fixed to the structure to be a fixed end of a cantilever and a second position on a free end side;
• and
• a weight attached to the flexible member in the second position,
• wherein the vibration suppression device has an adjustment mechanism for changing a distance between the first position and the second position,
• wherein the flexible member has a shaft shape,
• wherein the flexible member is attached to a base plate in the first position, and the base plate is fixed to the structure, and
• wherein a through hole is formed in the base plate, and the flexible member is inserted into the through hole so as to protrude from both sides of the base plate, and the distance between the first position and the second position is changed by changing relative positions of the flexible member and the base plate.

A vibration suppression device of a structure, the vibration suppression device comprising:

• a flexible member having a first position fixed to the structure to be a fixed end of a cantilever and a second position on a free end side;
• and
• a weight attached to the flexible member in the second position,
• wherein the vibration suppression device has an adjustment mechanism for changing a distance between the first position and the second position,
• wherein the weight is disposed in a space provided inside the structure so as not to come into contact with the structure,
• wherein the flexible member has a shaft shape,
• wherein the flexible member is attached to a base plate in the first position, and the base plate is fixed to the structure, and
• wherein a through hole is formed in the base plate, and the flexible member is inserted into the through hole so as to protrude from both sides of the base plate, and the distance between the first position and the second position is changed by changing relative positions of the flexible member and the base plate.