4 results about "Vibration transmission" patented technology

The invention discloses a vibration performance simulation test device of a lubricating oil tank-mounting structure, and belongs to the technical field of aero-engines. The device comprises a casing base, a simplified lubricating oil tank and a mounting structure assembly. According to the method, feature extraction is carried out on the actual engine model, the actual model is simplified, the model is highly similar to the actual engine, and kinematics and dynamics characteristics of a system composed of parts such as an actual engine case, an installation structure assembly and a lubricating oil tank are restored to a great extent. The device and the method face dynamic design and vibration analysis and evaluation of a space multi-point supporting system, and are used for researching system vibration performance of a lubricating oil tank-mounting structure system under different supporting conditions and vibration transmission performance of a mounting structure.

The invention discloses a multi-section type roasting furnace provided with a platform, which comprises a first furnace body which is located at the lower part and provided with a hollow chamber, a second furnace body which is located at the upper part and provided with a hollow chamber, as well as a safe platform fixed on a foundation, wherein a first interface is arranged on the first furnace body; a second interface is arranged on the second furnace body; the first interface and the second interface are in interference fit; the first furnace body and the second furnace body are connected through a flexible structure fixed between the first interface and the second interface; and the second furnace body is detachably connected onto the safe platform. According to the multi-section type roasting furnace, compared with a one-section type roasting furnace, the height is reduced obviously, resonance is not prone to occur, vibration transmission between the two furnace bodies can be restrained effectively, depth for foundation construction is shallower, the cost is reduced, the time is saved, and the construction progress is accelerated; and further, a manner of wind load transmission of the furnace top located in a high position is changed, the wind load is transmitted to the foundation through the safe platform instead of the furnace bodies, and the standing stability and the structural safety of the first furnace body are enhanced.

The invention discloses a multi-drum washing machine. A second clothes treatment drum and a first clothes treatment drum which are arranged in the vertical direction are fixedly connected through a connecting frame. The lower portion of the first clothes treatment drum is supported on a supporting frame through multiple shock absorbers, and the multiple shock absorbers form different supporting angles relative to the horizontal plane. A second elastic part is arranged between the upper portion of the second clothes treatment drum and the supporting frame. By means of the above arrangement, thetreatment effect on vibration of the whole machine of the multi-drum washing machine is optimized, the washing drums are integrally connected through a rigid connecting structure, and vibration generated during running of the multiple drums is lowered; and it is ensured that vibration of the multiple drums is consistent under the working condition of the multi-drum washing machine, vibration energy can be treated in a concentrated manner, vibration transmission is more stable, different supporting angles are adopted for the multiple shock absorbers, and the shock absorption effect of the shock absorbers is obvious.