[특허]Velocity-proportional active vibration damping

SIEMENS AKTIENGESELLSCHAFT

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Velocity-proportional active vibration damping

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G05B-021/00 F16F-015/00 B66C-013/06 F16F-007/10
출원번호	US-0630812 (2012-09-28)
등록번호	US-9316283 (2016-04-19)
우선권정보	EP-11 183 451 (2011-09-30)
발명자 / 주소	Ladra, Uwe Schäfers, Elmar Schür, Torsten
출원인 / 주소	SIEMENS AKTIENGESELLSCHAFT
대리인 / 주소	Henry M. Feiereisen LLC
인용정보	피인용 횟수 : 1 인용 특허 : 8

초록
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An active vibration damper has a damping device arranged on a vibration-susceptible mechanical structure. A force can be injected directly into the vibration-susceptible mechanical structure with the damping device. A damping force which damps a vibration of the mechanical structure is determined by a control device of the active vibration damper with reference to an absolute movement of the mechanical structure in space. A damping drive of the damping device which is arranged on the mechanical structure is activated by the control device in accordance with the determined damping force such that the determined damping force is injected into the mechanical structure with the damping drive. The control device determines the damping force such that the damping force is proportional at all times to the instantaneous velocity of the mechanical structure.

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1. A method for operating an active vibration damper having a damping device arranged on a vibration-susceptible mechanical structure, comprising the steps of: capturing, with a control device, a temporal course of a magnitude of a movement of the mechanical structure in space over an extended time period,determining with the control device, based on the magnitude of the movement of the mechanical structure in space, a damping force damping a vibration of the mechanical structure, wherein the damping force is proportional at all times to an instantaneous velocity of the mechanical structure,controlling with the control device a damping drive of the damping device, which is constructed as an electric direct linear drive and arranged on the mechanical structure, commensurate with the determined damping force,determining, with the control device, whether a predefined natural vibration of the mechanical structure is damped in a predefined manner, anddirectly injecting with the damping drive the determined damping force into the mechanical structure so as to automatically track a proportionality factor between the instantaneous velocity of the mechanical structure and the damping force exerted on the mechanical structure, such that the natural vibration of the mechanical structure is damped in the predefined manner. 2. The method of claim 1, wherein a resulting damping of a vibration of the mechanical structure is no greater than a maximal damping that is required for attaining a non-periodic limit of a natural vibration of the mechanical structure. 3. The method of claim 1, wherein the electric direct linear drive comprises a stator which is permanently connected to the mechanical structure and which operates on both the mechanical structure and on an armature that is movable relative to the mechanical structure. 4. The method of claim 3, further comprising the steps of: determining with the control device a displacement of the mechanical structure from a reference position,determining a reference velocity of the armature relative to the mechanical structure such that the reference velocity is at all times proportional to the instantaneous displacement of the mechanical structure from the reference position, andindirectly determining, from the reference velocity, the damping force which is proportional at all times to the instantaneous velocity of the mechanical structure. 5. The method of claim 4, further comprising the steps of: integrating an activation of the damping drive according to the determined damping force into a superordinate position control, andin response to a displacement of the armature caused by the determined damping force from a rest position associated with the mechanical structure,superimposing, with the superordinate position control, a return movement of the armature to the rest position or to a region containing the rest position, orlimiting, with the control device, travel of the armature to a permitted region of travel which includes the rest position. 6. The method of claim 3, wherein an additional mass is arranged on the armature of the electric direct linear drive. 7. A control program stored on a non-transitory medium and comprising machine code which, when executed by a control device operating an active vibration damper having a damping device arranged on a vibration-susceptible mechanical structure, causes the control device to operate the active vibration damper by capturing a temporal course of a magnitude of a movement of the mechanical structure in space over an extended time period,determining, based on the magnitude of the movement of the mechanical structure in space, a damping force damping a vibration of the mechanical structure, wherein the damping force is proportional at all times to an instantaneous velocity of the mechanical structure,determining whether a predefined natural vibration of the mechanical structure is damped in a predefined manner,controlling a damping drive of the damping device, which is constructed as an electric direct linear drive and arranged on the mechanical structure, commensurate with the determined damping force, anddirectly injecting with the damping drive the determined damping force into the mechanical structure so as to automatically track a proportionality factor between the instantaneous velocity of the mechanical structure and the damping force exerted on the mechanical structure, such that the natural vibration of the mechanical structure is damped in the predefined manner. 8. A control device for controlling an active vibration damper having a damping device arranged on a vibration-susceptible mechanical structure, wherein the control device configured to operate the active vibration damper by: capturing a temporal course of a magnitude of a movement of the mechanical structure in space over an extended time period,determining, based on the magnitude of the movement of the mechanical structure in space, a damping force damping a vibration of the mechanical structure, wherein the damping force is proportional at all times to an instantaneous velocity of the mechanical structure,determining whether a predefined natural vibration of the mechanical structure is damped in a predefined manner,controlling a damping drive of the damping device, which is constructed as an electric direct linear drive and arranged on the mechanical structure, commensurate with the determined damping force, anddirectly injecting with the damping drive the determined damping force into the mechanical structure so as to automatically track a proportionality factor between the instantaneous velocity of the mechanical structure and the damping force exerted on the mechanical structure, such that the natural vibration of the mechanical structure is damped in the predefined manner. 9. An active vibration damper, comprising: a damping device arranged on a vibration-susceptible mechanical structure and comprising a damping drive configured to directly inject a damping force into the mechanical structure,at least one sensor configured to measure a magnitude of a movement of the mechanical structure in space, anda control device connected with the at least one sensor for data transfer for receiving values measured by the at least one sensor and connected with the damping drive for controlling the damping drive, wherein the control device is configured to:capture a temporal course of an absolute movement of the mechanical structure in space over an extended time period,determine, based on the magnitude of the movement of the mechanical structure in space, a damping force damping a vibration of the mechanical structure, wherein the damping force is proportional at all times to an instantaneous velocity of the mechanical structure,determine whether a predefined natural vibration of the mechanical structure is damped in a predefined manner,control a damping drive of the damping device, which is constructed as an electric direct linear drive and arranged on the mechanical structure, commensurate with the determined damping force, anddirectly inject with the damping drive the determined damping force into the mechanical structure so as to automatically track a proportionality factor between the instantaneous velocity of the mechanical structure and the damping force exerted on the mechanical structure, such that the natural vibration of the mechanical structure is damped in the predefined manner.

이 특허에 인용된 특허 (8)

이 특허를 인용한 특허 (1)

Kono, Satoshi; Yamaguchi, Takashi; Nemoto, Hirotomi, Active vibration damping device and active vibration damping method.

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특허 상세정보

Velocity-proportional active vibration damping

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이 특허에 인용된 특허 (8)

이 특허를 인용한 특허 (1)

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Velocity-proportional active vibration damping

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이 특허에 인용된 특허 (8)

이 특허를 인용한 특허 (1)

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IPC 상세정보(version : 201201)

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