根据随机振动试验的有关理论，确定产品局部应变载荷的概率密度函数。
The probability density function of partial strain loading of product is defined in accordance with the relevant theory of random vibration test.
电工电子产品环境试验。第2部分：试验方法。振动、冲击和类似动力学试验样品的安装。
Environmental testing for electric and electronic products. Part 2: test method. Mounting of specimens for vibration, impact and similar dynamic tests.
试验表明：电子产品在振动环境中的损伤不仅与振动类型及幅值有关，也与其自身结构有着密切的关系。
The experiment showed that the damage of electronic product in vibration environment has relation with type and amplitude of vibration and structure of the product.
试验的结果难于预测产品在振动-离心复合环境下潜在的故障。
But the potential reliability of the objects in the compound environment can not be forecast accurately by the asynchronous experimental results.
同时，今后还需开展大量的汽车电器振动模拟试验，完善实际工况模拟的精确性、试验方法的准确性，为汽车产品可靠性研究工作提供有效的手段。
It can improve the accuracy of simulation in the true working environment and the veracity of test methods. It will provide valid means for the research of automotive product reliability.
采用高速振动头同步振动，保证在振动时各部位的产品受到的力的情况一致，并延长试验机的寿命及故障率的降低。
Use high speed oscillation cobbra , ensure all parts of products have same strength during oscillation , prolong tester lifespan, decline failure rate.
在实际工程中，为研究产品的可靠性或抗震性，必须进行以随机振动为主的试验考核。
In practical situation, random vibration test must be regard as the key experiment to obtain the reliability or seismic behavior of the products.
高低温试验台、振动试验台、盐雾试验台以及脉冲压力试验台等为检测汽车空调产品环境性能提供了可靠的保证。
High and low temperature test rig , vibration test rig , salt spray test rig and pulse pressure test rig are used for automotive A/C products tests .
高低温试验台、振动试验台、盐雾试验台以及脉冲压力试验台等为检测汽车空调产品环境性能提供了可靠的保证。
High and low temperature test rig , vibration test rig , salt spray test rig and pulse pressure test rig are used for automotive A/C products tests .
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