14 results about "Force generation" patented technology

The application discloses a rotary giant electro-rheological fluid energy collection damper, which comprises a shell, an input shaft coaxially arranged on the shell, a stator coaxially fixedly connected in the shell, a plurality of iron cores uniformly arranged in the stator in a circumferential direction, and an induction coil wound on the iron cores; the input shaft is coaxially fixedly connected with a rotor, a plurality of permanent magnets are uniformly arranged in the rotor in a circumferential direction, and the polarities of the adjacent two permanent magnets are opposite; the inner side of the plurality of iron cores is fixedly connected with an outer ring polar plate, the outer side of the rotor is fixedly connected with an inner ring polar plate, the outer ring polar plate and the inner ring polar plate are electrically connected with two poles of the induction coil respectively, and a cavity for containing electro-rheological fluid is arranged between the outer ring polar plate and the inner ring polar plate. The application can collect the energy generated by vibration and apply the energy to a damping force generation process, so as to utilize the generated damping force to carry out vibration isolation; in addition, the rotary giant electro-rheological fluid energy collection damper integrates the damping and the energy collection, has high integration degree, and can significantly reduce the size.

To configure a simpler controllable variable detection device. [Solution] The operation amount detection device 10 comprises an input member 1 to which a swinging operation force is input, a reaction force generation mechanism 2 that generates a reaction force to the swinging operation force, a transmission shaft member 3 arranged on a reference axis X, a support mechanism 4 that swingably supports the transmission shaft member 3, a connecting mechanism 5 that connects the transmission shaft member 3 and the reaction force generation mechanism 2, and an operation amount sensor 6. The input member 1 is connected to the input part 34 of the transmission shaft member 3, the connecting mechanism 5 is connected to the output part 35 of the transmission shaft member 3 which is spaced apart in the axial direction L from the input part 34, and the operation amount sensor 6 is positioned between the input part 34 and the output part 35 in the axial direction L, and detects at least one of the amount of rotation and twist of the transmission shaft member 3.

This vehicle comprises: a first force generation mechanism which is provided to a cylinder device disposed between a vehicle body and a wheel and in which a generated force is changeable by the relative movement of a cylinder and a rod; an elastic member which is disposed between the vehicle body and the wheel and which has rigidity that suppresses the transmission, to the vehicle body side, of high-frequency vibrations of 20 Hz and higher that are imparted to the wheel; and a second force generation mechanism which is provided to the cylinder device and which, when the movement speed of the rod relative to the cylinder is in a first speed range, operates in a state in which the first force generation mechanism is not operating, and when the movement speed of the rod relative to the cylinder is in a second speed range that is higher than the first speed range, operates together with the first force generation mechanism.

An intraluminal ultrasound device configured to be inserted within an inner wall defining a lumen of a patient can include a housing extending from a proximal section to a distal section along a central axis. The housing can include a transducer configured to capture ultrasound images and a mounting component configured to receive the transducer. The intraluminal ultrasound device can also include a force generation system operable to maintain contact between the inner wall and the transducer, in turn causing a reduction in an air gap between the lumen and the transducer.

This invention relates to the fields of vibration control and nonlinear mechanics, and provides a programmable method for generating two-dimensional nonlinear forces. The method includes: responding to a two-dimensional nonlinear force generation request; acquiring the structure and structural parameters of a mechanical realization device; determining the trajectory of the center point of a rolling component during motion based on mechanical equilibrium relationships, and acquiring the geometric expression of the rolling component's trajectory surface; and, based on the geometric dimensions of the rolling component, performing equidistant mapping along the normal direction on the rolling component's trajectory surface, causing the rolling component to adhere to and roll along a three-dimensional guide surface, thereby generating a nonlinear force corresponding to a target nonlinear force function. This method not only generates nonlinear forces of arbitrary continuous form based on a preset target force function and supports personalized customization of nonlinear stiffness characteristics, but also generates nonlinear forces that meet target requirements in two mutually orthogonal motion directions.

To provide a vehicle operation input device that facilitates the simplification of the linear motion conversion mechanism structure. [Solution] The vehicle operation input device 100 includes an input member 1 to which a rotational operating force about a reference axis X is input, a reaction force generation mechanism 2 that generates a reaction force to the rotational operating force, and a linear motion conversion mechanism 3 that converts the rotation of the input member 1 into a driving force in the direction along the reference axis X and transmits it to the reaction force generation mechanism 2. The linear motion conversion mechanism 3 includes a transmission shaft member 4 to which the rotation of the input member 1 is transmitted, an intermediate member 5 having a first outer arrangement portion 51 arranged radially R outward from the transmission shaft member 4, a housing member 6 that covers the transmission shaft member 4 and the intermediate member 5 from radially R outward, a cam mechanism 7 that converts the rotational motion of the transmission shaft member 4 into axial L motion of the intermediate member 5 and transmits it, and a guide mechanism 8 that restricts the circumferential C motion of the intermediate member 5 relative to the housing member 6 and allows the axial L motion of the intermediate member 5 relative to the housing member 6.

A damping force generation mechanism with a flow path inside thereof, through which a fluid flows, includes: a valve body part including an elastically deformable elastic part and a pressure receiving part receiving pressure of the fluid; a valve seat part provided around a flow path port of the flow path, with which the pressure receiving part is able to make contact; and a support part provided in a constituent part constituting at least a part of a back pressure chamber applying a back pressure toward the valve seat part to the valve body part, the support part supporting an outer edge portion of the elastic part.

An output shaft (30) is rotatable relative to a housing (11). An output gear (31) is not rotatable relative to the output shaft (30), so that it rotates integrally with the output shaft (30). An intermediate shaft (40) is rotatable relative to the housing (11). An intermediate gear (41) engages with the output gear (31) and a drive gear (22) and is not rotatable relative to the intermediate shaft (40). A preload element (50) is configured such that it transmits a preload force to the output shaft (30) separately from a drive source (20) in a reaction force generation direction, the drive source (20) being configured in the same direction to generate the reaction force. A preload gear (51, 52) engages with the intermediate gear (41) and is rotatable relative to the output shaft (30), so that the intermediate gear rotates relative to the output gear (31).The preload element (50) is arranged between the housing (11) and the preload wheel (51) and is configured such that it transmits the preload force via the preload wheel (51) to the intermediate wheel (41) and the output wheel (31).

The present application relates to a kind of large-scale forging press nominal force generation point's accurate control method and system, to solve the problem that nominal force generation point space position deviation is difficult to real-time correction due to structural parameter uncertainty, complex coupling and abnormal state interference in the process of forging and pressing.The three-dimensional coordinates of nominal force generation point and its covariance ellipsoid are obtained by finite element discrete modeling, parameter space error sensitivity analysis, dynamic comparison of multi-dimensional sensor array measured data and digital twin model, automatic screening of sensitive parameters and rapid reconstruction of local submodel, and efficient response of physical behavior based on pre-verified alternative model.Combined with the output regulation of multi-axis linkage hydraulic system, the dynamic adjustment of the parallelism of the slide and the table is achieved, the accurate closed-loop control of the nominal force generation point is achieved, and the precision, response speed and robustness of the forging press are improved.

The present invention provides an aircraft control system that can smoothly and accurately transmit the rotation of the wheel and the reaction force generated in the reaction force generation unit, without being affected by the tilting of the column. [Solution] The system comprises a column 12, a wheel 14, and a wheel shaft 40 connected to the wheel 14 via a power transmission mechanism 41, which rotates around a third axis AX3 as the wheel 14 rotates. The wheel shaft 40 is supported at the lower end of the column 12 via a bearing 42, and when the column 12 is tilted, it tilts together with the lower end of the column 12 around the first axis AX1.

In a cam mechanism including a pressurization member, a pressurization target member and a pressurization force generation member, a cam, a first member that moves the pressurization member by rotation of the cam and applies a pressurization force generated by the pressurization force generation member to the pressurization member, a second member that changes the pressurization force of the pressurization force generation member by the rotation of the cam are provided, wherein the cam includes a plurality of cam outer peripheral surfaces at different position in a rotational axis direction, and a first cam outer peripheral surface among the plurality of cam outer peripheral surfaces does not act on the first member in a positional relationship where at least a part of the first cam outer peripheral surface overlaps the first member.

A bearingless split tooth flux-reversal motor (FRM) for use with a pump, such as a centrifugal blood pump. In some embodiments, the motor has a magnet-free rotor and a magnetic configuration wherein the force generation is independent of the rotor angle, allowing for simple radial force generation using stator-fixed currents. The motor torque can be generated using commutated two-phase currents.