Vibration testing conducted using different types of road surfaces

Alpine's full-scale 1-km test course simulates 15 different types of road surfaces found throughout the world.

Vibration testing conducted using different types of road surfaces

In-car components are constantly subjected to vibration. Such vibration is not constant, and varies according to differences in road surfaces. Aiming for consistent performance regardless of the type of vibration, Alpine conducts thorough verification. We perform vibration simulations on the computer base plate and casing at the design stage, and repeated verifications on our test course—the only such course operated by a car audio maker.

The test course features 15 different types of road surfaces in its inner and outer tracks including cobblestone surfaces, gravel roads, irregular bumps, ""washboard"" surfaces and railroad crossings. The course allows us to carry out actual driving tests for our equipment over a wide range of conditions that our products are likely to encounter in various areas of the world. In reality, Europe is a continuous land mass where drivers can drive across national boundaries. Hence, road surfaces change significantly. It is Alpine's responsibility to maintain its no-compromise attitude in responding to such needs, and it is vital for the company to do so in order to win the trust of even more customers in the future.

Our indoor tests involve computer-reproduced vibrations on a special vibration tester for conducting advanced vibration simulation tests based on data collected on the test course and actual roads. These tests subject products to simultaneous vibrations (shocks) in three directions: vertical, lateral and fore-aft. Alpine products go through this rigorous series of tests to ensure their sturdiness and resistance to in-car vibrations.


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