A torque balancing device, a self-balancing joint and a surgical robot are provided. The torque balancing device includes a first body, a second body, an elastic part and a transmission part, the first body includes a first connection end and a first opposite end opposite to the first connection end, the second body includes a second connection end and a second opposite end opposite to the second connection end, the second connection end of the second body is rotatably connected to the first connection end of the first body, the elastic part is provided in the first body, and the transmission part is connected to the second body and the elastic part.

A torque balancing device, a self-balancing joint and a surgical robot are provided. The torque balancing device includes a first body, a second body, an elastic part and a transmission part, the first body includes a first connection end and a first opposite end opposite to the first connection end, the second body includes a second connection end and a second opposite end opposite to the second connection end, the second connection end of the second body is rotatably connected to the first connection end of the first body, the elastic part is provided in the first body, and the transmission part is connected to the second body and the elastic part.

A magnetic suspension type sensing system for space full-degree-of-freedom absolute poses is provided. The system includes a reference platform, multiple quasi-zero stiffness supporting legs and a platform to be tested. The reference platform and the platform to be tested are connected in a spherical hinge mode through the multiple quasi-zero stiffness supporting legs. Each of the multiple quasi-zero stiffness supporting legs includes a lower end spherical hinge, a lower end cover, a positive stiffness unit, a negative stiffness unit, a shaft, a lower end shell, an upper end shell and an upper end spherical hinge.

A control system for an active powertrain mount includes a control signal which is based on the input velocity of the chassis at the active powertrain mount. The control signal may be proportional to the input velocity or to the mount velocity, which is the difference between the input velocity of the chassis at the active powertrain mount and the output velocity of the powertrain component at the active powertrain mount. The input velocity of the chassis at the active powertrain mount may be determined by a controller based on the CG heave and the roll and pitch velocities of the chassis. The output velocity of the powertrain component at the active powertrain mount is determined by the controller by integrating an acceleration signal from a component accelerometer disposed on the powertrain component proximate to the active powertrain mount. Corresponding methods for controlling an active powertrain mount are also provided.

A method and an apparatus for isolating a vibration of a positioning device are provided. The apparatus includes a base plate for the positioning device, at least one active bearing element for bearing the base plate on/at a foundation and at least one evaluation and control device. The apparatus includes at least one means for determining a foundation movement-dependent quantity, wherein the active bearing element is controllable by the at least one control and evaluation device on the basis of the foundation movement-dependent quantity.

A rapid active vibration reduction method for a high-speed motion stage includes acquiring motion parameters of a motion body of the motion stage in current motion; determining a vibration reduction mode of a vibration reduction device according to the motion parameters; and controlling an action end of the vibration reduction device to contact with the motion body of the motion stage or contact with a driving device for driving the motion body to move based on the vibration reduction mode, so that a contact friction force used for suppressing vibration of the motion body is generated. Realizing vibration reduction by means of active friction can reduce vibration of the motion body in a specific stage needing vibration reduction, and the action end of the vibration reduction device does not need to contact with the motion body or does not need to contact with the driving device before vibration reduction.

A vibration isolator can be configured to provide improved vibration isolation performance, such as in connection with a bicycle saddle. The bicycle saddle can be operatively connected to a bicycle frame. The vibration isolator can be located within a portion of the bicycle frame. The vibration isolator can be operatively positioned with respect to the bicycle saddle. The vibration isolator being configured to exhibit a non-linear stiffness profile. The non-linear stiffness profile can include a region of quasi-zero stiffness. The vibration isolator including a plurality of spring members arranged in a stack.

A device for reducing impact forces upon a surface includes a base comprising a first contact portion and a transition portion, a contact member disposed between the base and the surface; and a biasing portion disposed between the first contact portion of the base and the surface. At least a first portion of an impact force upon the surface is transferred from the contact member to the base, and a second portion of the impact force is subsequently returned to the surface, the second portion being less than the first portion.

A culture apparatus includes an inner box for housing a culture, an outer box surrounding the inner box, and a first vibration prevention mechanism that is disposed between the inner box and the outer box, and is configured to prevent the inner box from vibrating due to the vibration of the outer box.

A locking isolator includes one or more joints. The one or more joints are configured to transition between a clearance fit state and an interference fit state in response to a change in temperature. The locking isolator includes a dampener. The dampener is configured to attenuate transmission of vibration through the one or more joints when the one or more joints are in the clearance fit state.