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Design method for six-point suspension system of high-power diesel power assembly

A high-power diesel engine and powertrain technology, applied in the direction of power plant, jet propulsion device, internal combustion propulsion device, etc.

Inactive Publication Date: 2010-03-24
TIANJIN UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The design of the mount system can be mainly divided into four steps: the selection of the mount point, the measurement of the powertrain mass-inertia characteristic parameters by test, the determination of the mount angle and the determination of the characteristic parameters of the rubber vibration isolator.

Method used

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  • Design method for six-point suspension system of high-power diesel power assembly
  • Design method for six-point suspension system of high-power diesel power assembly
  • Design method for six-point suspension system of high-power diesel power assembly

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Embodiment Construction

[0048] The design scheme of the present invention will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0049] Taking the design of the WP10 diesel engine powertrain mount system as an example, the powertrain has a mass of 1.2 tons, an inline six-cylinder, a rated speed of 2200r / min, an idle speed of 600r / min, and a rated power of 243kW.

[0050] 1. Selection of the best suspension point.

[0051] 1.1 Simplify the powertrain model and arrange measuring points. as attached figure 2 . And input the simplified powertrain geometry into the computer test system. In this embodiment, a total of 640 measuring points and 1920 response signals are arranged.

[0052]1.2 Suspend the powertrain I with a rope, select the measuring point numbered 1 as the excitation point, and measure the vibration response of other points. Repeat the sampling for each measuring point 3 times, and then average to eliminate the noise in the sign...

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Abstract

The invention discloses a method for designing a six-point suspension system for power assembly of a high-power diesel engine, which relates to the components of: a tension sensor, a wobble plate, a rubber vibration isolator, etc. The design of the suspension system can be primarily divided into four major steps of selection of suspension points, measurement of power assembly quality-inertia characteristic parameter by experiment, determination of a suspension angle and determination of the characteristic parameter of the rubber vibration isolator. The positions of the suspension points are determined according to the low-order longitudinal bending mode of the power assemble; the installation angle of the suspension points is determined according to symmetrical arrangement and the theorythat each bearing point is arranged on a plane passing through a principal inertia shaft; an optimization design is applied to three-way rigidity parameters of the rubber vibration isolator accordingto the energy decoupling method. The method for designing the six-point suspension system is simple and applicable, can realize a vibration decoupling of more than 80 percent, and has favorable vibration isolation effect after being used on a plurality of models for verification.

Description

technical field [0001] The invention belongs to vibration mechanics, and in particular relates to the vibration control technology of vehicles and power machinery. Background technique [0002] With the speed of automobiles becoming higher and the weight of the car body becoming lighter, the problem of vibration and noise is becoming more and more serious, and people's requirements for vibration and noise are becoming more and more stringent. People are paying more and more attention to the ride comfort and ride comfort of automobiles. The vibration reduction and vibration isolation of the powertrain is particularly important. A reasonable design of the powertrain suspension system can not only improve the comfort of the car, but also prolong the service life of the engine and other components. It is the most effective way to solve the vibration of the internal combustion engine way. Traditional vehicle powertrains mostly use three-point or four-point mounts, while for lux...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K5/12
Inventor 张俊红毕凤荣韩峰胡春林田新伟
Owner TIANJIN UNIV
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