Vibration, Drop And Other Mechanical Test Related Standards

- Nov 07, 2019-

Dongguan lonroy equipment co.,ltd professional r & d production and sales of vibration testing machine, drop test bed, the production of each equipment is customized according to the relevant standards, the following is to introduce the vibration, fall and other mechanical test standards, for your reference:

Mechanical test standards:

A. Test standard for cartoon boxes and drop boxes (Canada)

Weight 

Drop height

Under 10kg

75cm

10-15kg

60cm

15-25kg

50cm

25-40kg

40cm

Over-40kg

30cm

1. Pick another * weak side and throw it on the ground.3. Choose a weak Angle and drop it on the ground.Floor requirements: 0.32cm stone floor (asphalt floor tile);Open box inspection is required after each throw. Any damage or functional failure is not acceptable.

B test standard for carton and drop carton (USA)

Weight 

Drop height

0-9.5KG

76.2cm

<18.6kg

61.0cm

<27.6kg

45.7cm

<45.3kg

30.5cm

1st drop    2nd drop     3rd drop

1.Pick another * weak side and throw it on the ground.3. Choose a weak Angle and drop it on the ground.Floor requirements: 0.32cm stone floor (asphalt floor tile);Open box inspection is required after each throw. Any damage or functional failure is not acceptable.

Test purpose: to test products against random vibration at specified severity levels

Test equipment: vibration meter

Test samples: 6SETS

Test content: the tested sample is not packaged, in the state of electrification, and firmly fixed in the test table. Test parameters: frequency range 5-20hz, power spectrum 0.96m2 /S3;The frequency range is 20-500hz, the power spectrum is 0.96m2 /S3 (at 20Hz), others are -3db / ° c. T.

Criteria: pass basic functional test;Normal appearance/structure, no loose parts or abnormal cracks.

 

Packaging vibration test standard:

Test objective: to simulate the effect of vibration on products during transportation

Test equipment: vibration tester

Test sample: 2 carton

Test content: Vibration width :2mm/2.8g;Sweep Frequency :10 to 30Hz;Direction: six faces (x.y.zaxis);Test time: 30 Minutes/each surface (30 Minutes per axis). After the test, check the appearance structure and functions of the product.

Determination standard: pass the basic test, the appearance/structure is normal, no loose parts are abnormal.

 

Free fall test criteria:

Test purpose: to test the adaptability of products to fall during handling due to rough handling

Test equipment: drop test machine

Test samples: 6SETS

Test content: the tested product is not packaged or attached, and is in the conduction state.From the height of 1M (if the LCM area exceeds 60% of the product surface area, the drop height is 50CM), the initial velocity is 0, and the free fall is on the smooth concrete floor, falling 3 times on each side, 18 times in total on 6 sides. At the end of the test, samples are taken out and entered

Check after test.

Judgment standard: the basic function, performance, appearance and structure of the mobile phone are normal after the test.No abnormal vibration of motor.

 

Drop test standard for bare machine:

Test objective: to test the compatibility of the product with slight impact in service

Test equipment: cement floor

Test samples: 6SETS

Test content: the product fell on the cement floor, falling height: 85CM.Drop mode: each of the six faces of the product drops once in a cycle;Drop order: left side -- right side -- upper side -- lower side -- front side -- back side. Check the appearance structure and basic functions of the product after each drop test.Conduct electrical performance test after complete cycle.

Judgment standard: the product surface is not allowed to have any degree of cracking, shell off and deformation, no sundries in the shell, no abnormal motor vibration.

 

Motor vibration test standard:

Test purpose: to check the life of the motor in the product

Test equipment: manual

Test samples: 6SETS

Test content: under the condition of greenhouse, the test prototype is set to the vibration state of the growth time, the test time is no less than 72 hours, and the motor vibration is tested every 2 hours.

Judgment standard: the test time shall be no less than 72 hours, the test prototype motor shall vibrate normally, and there shall be no obvious difference in hand feel.