Product Code:SAE J2710
Title:Modal Testing and Identification of Lower Order Tire Natural Frequencies of Radial Tires
Issuing Committee:Vehicle Dynamics Standards Committee
Scope:This SAE Recommended Practice describes test methods for measuring and identifying the lower order natural frequencies of an inflated radial tire with a fixed rim while expending modest effort and employing a minimum of test equipment. The methods apply to any size of radial tire so long as the test equipment is properly scaled to conduct the measurements for the intended test tire. Two types of boundary conditions are considered for the tire: unloaded and loaded against a flat surface. The test involves the performance and measurement of an input vibratory force (excitation) to the tire and the corresponding vibratory output (response). The data are suitable for use in determining parameters for road load models and for comparative evaluations of the measured properties in research and development. NOTES: The focus of this standard is identification and reporting of the lower order natural frequencies of the tire using a simple test procedure. While higher order natural frequencies may be excited during these tests, the reliable identification of the associated mode shapes is not addressed in this document. Herein, road load models are models for predicting forces applied to the vehicle spindles during operation over irregular pavements. Within the context of this Recommended Practice, forces applied to the pavement are not considered.

标准名称：	口服液瓶灌装联动线超声波清洗机
英文名称：	Production line for filling oral liquid - Ultra-sonic washer
中标分类：	医药、卫生、劳动保护 >> 制药、安全机械与设备 >> 制药加工机械与设备
ICS分类：
替代情况：	替代YY 0217.2-1995
发布部门：	国家发展和改革委员会
发布日期：	2004-02-05
实施日期：	2004-06-01
首发日期：	1900-01-01
作废日期：	1900-01-01
提出单位：	中国制药装备行业协会
归口单位：	制药装备标委会
起草单位：	北京航天万达高技术开发中心
起草人：	袁景洲、辛毅、王兆利
出版社：	中国计划出版社
出版日期：	2004-06-01
页数：	8 页
批文号：	发改委2004-8

本标准规定了超声波清洗机的分类和标记、要求、试验方法、检验规则和标志、使用说明书、包装、贮存。

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