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Wide-frequency large-displacement vibration simulation exciter suitable for road simulation of high-speed tracked vehicles

A technology of road simulation and large displacement, which is applied in the direction of vehicle testing, instrumentation, machine/structural component testing, etc. It can solve problems such as broadband large displacement cannot meet demand, oil supply pressure cannot be adjusted, and road environment is bad, so as to achieve buffering Strong ability, convenient position adjustment, fast response effect

Active Publication Date: 2022-02-22
HUNAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The weight of high-speed tracked vehicles is as high as more than 30 tons. Under the action of the balance elbow connecting the road wheels, the actuator bears a large load force. The main problems in the prior art are as follows: the static pressure support used must be equipped with a single oil source, or the oil supply pressure is not adjustable, and the adaptability is poor; the road environment of high-speed tracked vehicles is harsh, and the vibration exciter that needs to be simulated can perform vibration simulation of broadband and large displacement. The existing shock absorber can realize high-frequency simulation, but Unable to meet the demand in terms of broadband and large displacement

Method used

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  • Wide-frequency large-displacement vibration simulation exciter suitable for road simulation of high-speed tracked vehicles
  • Wide-frequency large-displacement vibration simulation exciter suitable for road simulation of high-speed tracked vehicles
  • Wide-frequency large-displacement vibration simulation exciter suitable for road simulation of high-speed tracked vehicles

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Embodiment

[0045] A wide-frequency large-displacement vibration simulation exciter suitable for road simulation of high-speed crawler vehicles, including a tailstock 1, an oil accumulator 2, a cylinder body 10, an end cover 11, a gland 13, and a bearing platform 15. The specific structure is as follows:

[0046] The inside of the cylinder body 10 is provided with an A-port connection hole 101, a B-port connection hole 102, a second bearing internal flow hole 103, and a second buffer internal flow hole 104; both ends of the cylinder body 10 are connected with end covers 11, and a valve block is installed on the front 3 and two plug-in back pressure valves 9, an integrated piston rod 12 is installed inside.

[0047] Valve block 3 is provided with A port flow channel 301, B port flow channel 302, third bearing inner flow hole 303, fourth bearing inner flow hole 304, P port flow channel 305, T port flow channel 306, third buffer inner Orifice 307, fourth buffer internal flow hole 308 and P p...

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Abstract

The invention discloses a wide-frequency large-displacement vibration simulation exciter suitable for road simulation of high-speed crawler vehicles, which includes a tailstock, an oil accumulator, a cylinder body, an end cover, a gland, and a cap; It is used to provide the base and support; the cylinder is located above the tailstock, the two ends of the cylinder are connected with end covers, the front of the cylinder is equipped with a valve block and a cartridge type back pressure valve, and the inside of the cylinder is installed with An integrated piston rod; an electro-hydraulic servo valve and a plug-in pressure reducing valve are installed on the upper part of the valve block, and an oil accumulator is installed under the valve block; a gland is connected to the upper part of the integrated piston rod. The upper part of the cover is connected with the platform. The invention realizes the low-friction wide-frequency large-displacement vibration simulation of the exciter, has strong adaptability, quick response, convenient adjustment and meets the requirements of laboratory testing.

Description

technical field [0001] The invention belongs to the technical field of mechanical design and relates to vibration simulation, in particular to a wide-frequency large-displacement vibration simulation exciter suitable for road simulation of high-speed crawler vehicles. Background technique [0002] High-speed tracked vehicles have the characteristics of strong ground adaptability and are widely used in the field of national defense. The vibration damping performance of the running system of high-speed tracked vehicles is an important guarantee for the off-road performance, comfort and stability of the upper installation platform of high-speed tracked vehicles. Vibration simulation exciter adapted to road simulation of high-speed tracked vehicles By applying vertical force to the road wheels of high-speed tracked vehicles, the displacement data of the actuators measured in the test laboratory are almost exactly the same as those under the original road conditions, which can gr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M17/007
CPCG01M17/007
Inventor 郭勇仝宁可戴巨川陈哲吾何兴云孙飞鹰凌启辉
Owner HUNAN UNIV OF SCI & TECH
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