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Case study Case Studies

Reproducing vibration caused by a trolley during transport

  • NEW
  • Reproduction of actual wave
  • Electronic parts

Test overview

Purpose

To reproduce the vibrations and shocks caused by unevenness and steps on the road when transporting goods on a cart, and check whether any abnormalities occur in the products.

EUT

Printers, refrigerators, televisions, computers, etc.

Test condition

Actual shock waveform reproduction

Test detail

【Cart used】
1. Bed dimensions 74 x 48 cm Load capacity 150 kg
2. Bed dimensions 90 x 60 cm Load capacity 300 kg

【Road conditions】
Data 1: Very rough road
Data 2/Data 3: General road
Data 4: Rough road → Slope joint → Coarse concrete slope
Data 5: Concrete factory floor

Waveform example

Sampling frequency: 512 Hz

Figure 1: Time history waveform
Figure 2: PSD analysis example – Very rough road surface