IDENTIFICATION OF THE RIGID-BODY CHARACTERISTICS OF A POWER-PLANT BY USING EXPERIMENTALLY OBTAINED TRANSFER-FUNCTIONS

被引：0
|
作者：
OKUZUMI, H
机构：
来源：
INTERNATIONAL JOURNAL OF VEHICLE DESIGN | 1994年 / 15卷 / 3-5期
关键词：
POWER PLANT; RIGID BODY CHARACTERISTICS; TRANSFER FUNCTIONS;
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Accurate data on the rigid body characteristics of a powerplant, including its centre of gravity and principal moments of inertia, are necessary in designing the characteristics of engine mounting systems. This paper presents a method for identifying the rigid body characteristics of a powerplant by solving a set of simultaneous linear equations. These equations are derived from an equation of motion, F = M* {X}, where F is an excitation force vector, {X} is an acceleration vector obtained experimentally and M is a 6 x 6 rigid body matrix of unknown quantities. A modal curve fitting method is used to eliminate the unwanted effects of higher-frequency elastic vibration modes from the rigid body motion frequency region of the measured transfer functions. The identification results for a front-wheel-drive powerplant were verified by comparing the actual and identified masses and the measured and calculated inertance levels.
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页码：425 / 434
页数：10
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