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A test system and test method for static and dynamic stiffness of a suspension cushion

A suspension cushion and test system technology, which is applied in the field of static and dynamic stiffness test systems, can solve the problems of unguaranteed accuracy, large vibration and noise of the vehicle, and low test efficiency of static stiffness and dynamic stiffness of suspension cushions, etc. problems, to achieve the effect of improving efficiency and accuracy, and improving the comfort level of vibration and noise

Active Publication Date: 2019-09-27
WEICHAI POWER CO LTD
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  • Abstract
  • Description
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Problems solved by technology

At present, the matching of the powertrain mount system is mainly calculated by empirical formulas based on parameters such as powertrain quality, mount cushion size, and hardness, which will inevitably introduce many errors, and there is a greater risk of vibration and noise when matching the entire vehicle
[0005] Existing test benches for suspension cushions cannot complete the test of static stiffness and dynamic stiffness of suspension cushions in one test, the test efficiency of static stiffness and dynamic stiffness of suspension cushions is low, and the accuracy cannot be guaranteed

Method used

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  • A test system and test method for static and dynamic stiffness of a suspension cushion

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Embodiment Construction

[0033] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.

[0034] In the description of the present invention, unless otherwise specified, "plurality" means two or more; unless otherwise specified, "notch-shaped" means a shape other than an even cross-section. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" etc. is Based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and th...

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Abstract

The invention relates to the technical field of engine test equipment and particularly relates to a suspended cushion static and dynamic rigidity test system and method. According to the test system,a work station and a fixed tool are oppositely arranged, the work station is sequentially provided with a static force sensor and a dynamic force sensor, the dynamic force sensor and the fixed tool are oppositely clamped at two ends of a to-be-tested suspended cushion, the work station can move relative to the fixed tool to drive the static force sensor and the dynamic force sensor to sequentiallyextrude the suspended cushion, the vibration direction of the work station is perpendicular to the moving direction, through extruding the suspended cushion by the work station for multiple times, static rigidity detection on the suspended cushion is carried out, after the suspended cushion is extruded to the pre-compressed position, dynamic rigidity detection on the suspended cushion is carriedout through multi-time vibration of the work station. The system is advantaged in that static rigidity detection and dynamic rigidity detection can be realized through one-time test, and efficiency and accuracy of static rigidity detection and dynamic rigidity detection of the suspended cushion are improved.

Description

technical field [0001] The invention relates to the technical field of engine testing equipment, in particular to a testing system and testing method for the static and dynamic stiffness of a suspension cushion. Background technique [0002] The powertrain is the main source of noise and vibration of the car. In order to ensure the comfort of driving, it is necessary to install a shock isolation device for the powertrain to isolate the vibration generated by the powertrain. The space layout of common car shock isolation devices is divided into: bottom layout and suspension layout. Among them, the suspension arrangement is to install the vibration isolation device on the torque shaft of the powertrain, which has a good vibration isolation effect. [0003] Suspension cushions are used to connect the powertrain and the frame, and play the role of supporting the powertrain, limiting the maximum displacement of the powertrain, and isolating the vibration transmission from the po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M17/04G01M5/00
Inventor 周帅高建立杜长刚王建金王建银李磊
Owner WEICHAI POWER CO LTD
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