40 results about "Whole body vibration" patented technology

An electrically-powered linear motor for a whole body vibration (WBV) machine is disclosed for producing and imparting vibrations to a platform for supporting a user. The linear motor comprises one or more pairs of generally aligned coils for producing electromagnetic responses in one or more magnets, each disposed generally intermediate a pair of coils. Current is intermittently passed through the coils to produce vibrations within a desirable frequency range in the platform.

A device for imparting vibration to a body is disclosed, such as may be used for whole body vibration treatment. In one embodiment, a pair of linear motors are disposed on a base. Each linear motor has a stator portion secured to the base and a moveable portion that linearly reciprocates with respect to the stator in response to a supplied current. A current source is electrically coupled to the linear motors for supplying alternating current to the linear motors. A controller is in communication with the current source for controlling movement of the linear motors at a selected phase relationship between the linear motors. A platform is coupled to the moveable portions of both linear motors using rigid rubber supports. The platform moves with respect to the base in response to movement of the linear motors. In a level mode, the dual linear motors are operated in phase, such that the platform remains level. In a tilt mode, the linear motors operate out of phase, imparting a vibrating tilt to the platform. A moveable mount, such as a rubber mount, couples the platform to the moveable portions of each linear motor to accommodate the tilt.

The invention discloses a multi-harmonic multi-input multi-output feedforward self-adaptive controlling method for helicopter body vibration and belongs to the field of active controlling of helicopter vibration. Aiming at the characteristic of helicopter body vibration under stimulation of the rotor vibration load with multi-stage harmonic frequency and multiple directions and based on the minimum mean square error method and harmonic coefficient identification, the multi-input multi-output feedforward self-adaptive controlling method of helicopter body vibration under the multi-harmonic and multi-load simulation is put forward, so that the purpose of reducing helicopter body vibration is achieved, and when the vibration phase, vibration amplitude and vibration frequency are changed, the good self-adaptive controlling performance is achieved.

A whole body vibration apparatus 100 with the motion inducing device 110 positioned other than under the vibrating platform 194 so that the vibrating platform 194 may be located close to the ground. Dual rocker shafts 178 journalled to reciprocate in a rotationally reciprocating motion, convert the linear motion of the rear-positioned motion inducing device 110 to vertical motion of the vibrating platform 194. A coupling mechanism constituted by a linkage 172, 174, 178 connects the motion inducing device 110 to the vibrating platform 194. The linkage employs deformable couplings 172, 174 and frictionless bearings to reduce unwanted rattle and wear and to remove the need for maintenance. A compensating device 140 adjusts for the weight of the user so that the motion inducing device 110 has all its useful output employed to vibrate the platform 194 as opposed to supporting the user's weight. In addition to altering frequency and amplitude, a method for user selection of different waveforms is provided to achieve a variety of treatment benefits.

The invention relates to a flat-lying-type vibrating bed. The flat-lying-type vibrating bed comprises a bed body, vibrators and a control unit. An audio file containing music data and low-frequency vibration data is sent to the control unit, and the low-frequency vibration data, generated by using the music data, are synchronized with the music data within a 2 HZ to 60 HZ range; the music data and the low-frequency vibration data are separately output by the control unit, wherein the music data are played; the low-frequency vibration data are used as a signal source for driving the vibrators to vibrate, and music is felt synchronously through the body vibration of a user; the play time length of the audio file is set to T; within the time T, the time occupied by data, with a frequency ranging from 2 HZ to 2.9 HZ, of the low-frequency vibration data is no lesser than 30 percents of T. According to the flat-lying-type vibrating bed, the frequency of vibration is controlled within a vibration range between 2 HZ to 60 HZ, particularly, the vibration range between 2 HZ to 2.9 HZ is the best vibration frequency range for the body, and the high-frequency music is converted into the low-frequency data to drive the vibrators, so that the body can feel the changes in the temperament synchronously.

A whole body vibration training apparatus able to linearly change its vibration amplitude is composed of a base, a swinging connection-rod group consisting of several swinging connection and arranged on base, a supporting frame on said swinging connection-rod group, a drive mechanism with a motor for driving said swinging connection-rod group and in turn said supporting frame to vibrate at various frequencies, and a vibration amplitude regulator between swinging connection-rod group and base.

The invention relates to a method for utilizing vehicle kinetic energy for power generation, and belongs to the field of vehicles. A vehicle body vibration restraining method of electric vehicle resonance power generation based on an effort wasting lever adopts a reverse effort-wasting lever manner, the power end of a reverse effort-wasting lever is fixedly connected with a secondary sprung vehicle body to bear vibration force of the secondary sprung vehicle body, the resistance end of the reverse effort-wasting lever drives a straight rack, the supporting point of the reverse effort-wasting lever is arranged on an axle, and the power end and the resistance end of the reverse effort-wasting lever are arranged on the two sides of the supporting point; the resistance end of the reverse effort-wasting lever drives the straight rack to vertically move along a sliding rail vertically fixed to a vibration guide frame, and in the rebound stroke of the secondary sprung vehicle body, torque resistance of electric generation of an electric generator is overcome; and correspondingly, the torque resistance of electric generation of the electric generator is amplified through the reverse effort-wasting lever to be conducted to the secondary sprung vehicle body to serve as vibration restraining resistance to achieve vibration restraining of a vehicle body, and a vibration reduction plate spring or vibration reducer is replaced.

The invention relates to the technical field of pneumatic control, in particular to a pneumatic locking alarm device for a damper. A damper pneumatic locking alarm device, comprising: a locking part and a bell part, the locking part includes a contact arm, a control spool, and the bell part includes a vibrating spool, a vibrating rod, and a bell; the described The locking part is connected to the bell ringing part, one end of the control valve core is connected to the contact arm, one end of the vibration valve core is connected to the vibrating rod, and the other end of the vibrating rod is connected to the ringing bell; The bell part is fixed on the door frame of the damper. Its advantages are: the air door pneumatic locking alarm device has the functions of air door locking and pneumatic bell alarming, it does not need manpower to open at all, the whole device does not need electricity, and can meet the explosion-proof requirements of underground coal mines, especially suitable for high-gas mines and flammable mines. Use in explosive places.

The invention discloses an individualized whole body vibration treatment platform and a control method. A pressure sensor is arranged on the platform and can monitor the plantar pressure distribution situation in real time when people sit for treatment. Plantar pressure is analyzed in a central processing unit. The standard pressure center and the actual pressure center are obtained according to the pressure distribution situation, and the position difference of the standard pressure center and the actual pressure sensor is converted into the balance accelerated speed. Meanwhile, by measuring plantar pressure and recording the deviation situation of the plantar pressure center, the preset accelerated speed is regulated according to the swing situation. During treatment, the preset accelerated speed and the balance accelerated speed are summated to obtain the correction accelerated speed which is the correction target accelerated speed. The correction accelerated speed is compared with the real-time accelerated speed of the platform during vibration treatment, the vibration strength is automatically regulated through the closed-loop control strategy so that the system can be stable as soon as possible. Self-adaption is conducted through the mode of regulating the correction accelerated speed, the vibration strength is regulated, and the optimal effect is achieved for stress stimulation conduction.

The disclosed upper body attachment, which may be used with a piece of exercising, stretching, or massaging equipment that incorporates whole body vibration (WBV) technology, provides a user with a way to apply WBV technology to the upper body. The attachment may include a pair of uprights and a crossbar to which a variety of types of handles may be slidably attached. The attachment may have a base that both supports the uprights and connects the uprights with the equipment incorporating the WBV technology. Accordingly, the attachment transfers vibrations from the vibrating equipment to the handles that a user grips. Several exemplary WBV upper body exercises that the attachment facilitates include push-ups, pull-ups, and dips.

The invention discloses a whole body vibration testing system of a tractor driver. The testing system comprises a cushion sensor, a data acquisition module, a wireless communication module and a hostcomputer. The cushion sensor is disposed on a seat cushion of a tractor driver and is used for collecting a whole body vibration signal of the driver, transforming the vibration signal into a voltagesignal, and sending the voltage signal to the data acquisition module. The data acquisition module sends the voltage signal to the host computer by the wireless communication module. Therefore, the data transmission mode is changed to be a wireless transmission mode and thus the data measured by the sensor are sent to the host computer by means of wireless transmission, so that repeated connectionand disconnection are avoided and thus the test efficiency is high. Moreover, the testing staff member does not need to follow the tested vehicle, so that the test cost is lowered. The testing staffmember can carry out process monitoring and data post-processing conveniently.

The invention discloses a rack of a multi-rotor-ring unmanned aerial vehicle. The rack comprises a center piece, a plurality of arm sets and a plurality of pairs of motor seats. The center piece comprises a polygonal disc and a plurality of pipe clamps integrally formed with the polygonal disc. The polygonal disc comprises an internally-hollow cavity. Each arm set comprises at least two first arms and a second arm connected to one ends of the at least two first arms, the first arms and the second arms are each of a pipe-shaped structure, and the other ends of the at least two first arms in each arm set are inserted into the corresponding pipe clamps. Each pair of motor seats is fixed to the two ends of the corresponding second arm correspondingly, and the motor seats are used for fixing a motor of the multi-rotor-ring unmanned aerial vehicle. According to the rack, the layout form of combining the center piece and the multiple arm sets is adopted, the structural size of the arms is reasonably set, the rack has the remarkable weight reduction effect while meeting the whole body vibration mode, and the rack is easy to demount, mount and maintain, high in reliability and suitable for batched production.

The invention discloses a whole-body vibration testing system and a whole-body vibration testing method for an ultra-large structural member. The method comprises the following steps of: providing a plurality of sensing units, wherein the monitoring range of the sensing units is enough to fully cover the whole-body surface and/or internal part of the ultra-large structural member, and under the situation that the ultra-large structural member is under the effect of external force, the sensing units are used for detecting the response parameters of all parts of the ultra-large structural member; and using at least one data processing unit to receive and process detection signals output by the sensing units, constructing a real data model for the ultra-large structural member and deducing the excitation characteristics of the ultra-large structural member. By using simple equipment, the whole-body vibration testing of the ultra-large structural member can be conveniently and rapidly realized, testing results which are basically consistent with real situations are obtained and the system and the method are suitable for the vibration testing of ultra-large structural members of all kinds.

The invention discloses a modular vital sign monitoring intelligent wheelchair, which relates to the technical field of intelligent wheelchairs. The intelligent wheelchair solves the technical defectsthat an existing intelligent wheelchair is inconvenient to use, poor in user experience and the like, and the intelligent wheelchair comprises a wheelchair body, a wheelchair node host is arranged inthe wheelchair body, and the wheelchair node host is wirelessly connected with a remote data cloud platform; the wheelchair node host is further connected with an optical fiber sensor which is used for detecting body vibration caused by heartbeat or breath and the like of the body of a user so as to provide heart rate or respiration rate monitoring signals for the wheelchair node host in real time, and the optical fiber sensor is arranged in a chair back or/and a cushion of the wheelchair body. The constraint of cable tensioning is eliminated, after a user sits on the wheelchair body, heartbeat or breath can be automatically measured in real time under the condition that the user does not know the situation, and due to the fact that the user does not feel the measurement which is carriedout at all, the psychological pressure of the user during measurement can be eliminated, discomfort caused by traditional measurement is avoided, and an accurate result is obtained.

The invention discloses a damping insole applicable to low-frequency whole-body vibration of a hydropower station and belongs to the technical field of whole-body vibration protection of the hydropower station. The damping insole is formed by a contact layer, a damping layer and an air cushion, the contact layer is divided into a sole area, an arch area and a forefoot area, and the edge shape of the contact layer curls inward from the edge to adapt to a shoe in shape; the damping layer is located under the contact layer and is connected with the arch area and the forefoot area of the contact layer in an adhesion manner, the edge shape of the damping layer is identical to that of the contact layer, vent holes are further formed in the position of the arch area of the damping layer, and an anti-skip structure is arranged on the forefoot area of the damping layer; the air cushion is located under the contact layer and is connected with the sole area of the contact layer in an adhesion manner. Health of an operator is protected through an individual protection mode, and problems that extensive layer of a damping pad easily leads to inconvenience in ground cleaning and an disadvantage in carrying out of maintenance work are solved.