| 摘要 |
PROBLEM TO BE SOLVED: To reduce vibration of a rotary electric machine caused by an electromagnetic exciting force which is generated with a rotational motion of a rotor, even for a rotary electric machine which is restricted in structure.SOLUTION: The rotary electric machine comprises: a rotor 1; a stator 2 surrounding the outer circumference of the rotor 1; a casing 4 coveting the outer circumference of the stator 2; a stator support member 3 formed from an elastic member for supporting the stator 2 in the casing 4; and a first dynamic vibration absorber 5a including a first elastic part 7a which is elastically deformed and a first mass part 6a in one end of the first elastic part 7a, and mounting another end of the first elastic part 7a to the stator 2. The first dynamic vibration absorber 5a is installed on an outer circumferential surface of the stator 2 in such a manner that the first dynamic vibration absorber 5a vibrates in a circumferential direction of the stator 2 in a first elliptic vibration mode in which a mounting position 8 of the stator support member 3 becomes an antinode of vibration and a position moved from the mounting position 8 at 45° in the circumferential direction of the stator 2 becomes a node of vibration. |
