摘要
为了提高民用轻小型无人机企业产品质量,提高相关环境试验人员的综合试验能力,提升行业检测技术水平,以GB/T 38924—2020系列为基础,对民用轻小型无人机环境试验方法进行了浅析。描述了民用轻小型无人机系统环境试验受到的影响因素,主要有气候环境因素和机械环境因素。对气候环境试验方法、机械环境试验方法进行了对比分析和技术归纳。根据GB/T 38924—2020系列对具体试验参数进行分析,温度试验的温度变化速率均不大于3℃/min;低气压和高气压试验的压力变化速率不大于4.8 kPa/min;盐雾试验分为连续喷雾方式和间歇喷雾方式;防水性试验的主要参数是雨滴直径和喷水量;砂尘试验的主要参数是尘浓度、砂浓度、吹尘风速和吹砂风速;冲击试验的主要参数是峰值加速度和脉冲时间,振动试验的主要参数是功率谱密度、振幅、加速度、扫频速率,冲击试验和振动试验参数应根据无人机类型和起飞质量来选取。根据相关标准选,取冲击试验和振动试验某个试验参数进行试验实施,并给出试验曲线。试验结果可靠,并对部分环境试验提出几点方法建议。
This paper aims to improve the product quality of civil light and small unmanned aerial vehicle(UAV) enterprises, to improve the comprehensive test ability of relevant environmental test personnel, and to improve the technical level of industry tests. On the basis of GB/T 38924—2020 series standards, the environmental test methods of civil light and small unmanned aerial vehicles(UAV) were analyzed. In this paper, the influence factors of the environmental test of civil light and small unmanned aerial vehicle(UAV) systems are analyzed, mainly including the climatic and mechanical environmental factors. The climatic environmental test method and mechanical environmental test method were compared and analyzed. According to GB/T 38924—2020 series standards, the specific test parameters were analyzed. The temperature change rate of temperature test is not more than 3 ℃/min;the pressure change rate of low pressure and high-pressure test is not more than 4.8 kPa/min;the salt spray test is divided into continuous spray mode and intermission spray mode. The main parameters of the waterproofness test are raindrop diameter and spray water quantity. The main parameters of the sand and dust test are dust concentration and sand concentration. Dust-blowing velocity and sand-blowing velocity;the main parameters of the impact test are peak acceleration and pulse time. The main parameters of the vibration test are spectral density, amplitude, acceleration and sweep frequency rate, the test parameters of shock test and vibration test should be selected according to the type of unmanned aerial vehicle(UAV) and take-off weight. According to the relevant standards, a test parameter of shock test and vibration test were selected to carry out the test, and the test curves were obtained. The test results are reliable, and some suggestions for some environmental tests were put forward.
作者
徐静
赵毅
潘勇
胡德隆
尹江梅
XU Jing;ZHAO Yi;PAN Yong;HU De-long;YIN Jiang-mei(Shandong Institute for Product Quality Inspection,Jinan 250100,China)
出处
《装备环境工程》
CAS
2022年第2期78-84,共7页
Equipment Environmental Engineering
