Abstract: A vibration damping device capable of achieving sufficient vibration damping effect utilizing members for converting kinetic energy into thermal energy. In the vibration damping device, a plurality of members is attached to an object to be vibrated in a manner to displace relatively while being contacted with each other, and vibrations of the vibrating object is damped by converting kinetic energy resulting from the vibrations of the object into thermal energy by the relative displacement of the plurality of members. The vibration damping device includes a tightening member, which is attached to the plurality of members to tighten the plurality of members so as to increase frictional force among the plurality of members.

Abstract: A vibration damping device capable of achieving sufficient vibration damping effect utilizing members for converting kinetic energy into thermal energy. In the vibration damping device, a plurality of members is attached to an object to be vibrated in a manner to displace relatively while being contacted with each other, and vibrations of the vibrating object is damped by converting kinetic energy resulting from the vibrations of the object into thermal energy by the relative displacement of the plurality of members. The vibration damping device includes a tightening member, which is attached to the plurality of members to tighten the plurality of members so as to increase frictional force among the plurality of members.

Abstract: [Constitution] A coatings composition having vibration-damping of two-components type and coating type which can be cured at the normal temperature comprising: a combination of not less than two kinds of an epoxy resins which can be provided with a curing compounds having each different glass transition temperature and a curing agent for an epoxy resin, and a filler. [Effect] The coatings composition having vibration-damping of two-components type and coating type which can be cured at normal temperature can be provided. Specially, said coatings composition which a drying oven for baking such as conventional example is not necessary because its composition can be cured at the normal temperature in a short time can be provided.