How To Read Plan & Profile (PNP) Profile Drawing प्लान और प्रोफाइल को कैसे पढ़ते हैं

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  • Опубликовано: 31 окт 2022
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    How To Read Plan & Profile (PNP) Profile Drawing प्लान और प्रोफाइल को कैसे पढ़ते हैं
    How To Read Plan & Profile (PNP) Profile Drawing प्लान और प्रोफाइल को कैसे पढ़ते हैं
    How To Read Plan & Profile (PNP) Profile Drawing प्लान और प्रोफाइल को कैसे पढ़ते हैं
    How To Read Plan & Profile (PNP) Profile Drawing प्लान और प्रोफाइल को कैसे पढ़ते हैं
    How To Read Plan & Profile (PNP) Profile Drawing प्लान और प्रोफाइल को कैसे पढ़ते हैं
    How To Read Plan & Profile (PNP) Profile Drawing प्लान और प्रोफाइल को कैसे पढ़ते हैं
    How To Read Plan & Profile (PNP) Profile Drawing प्लान और प्रोफाइल को कैसे पढ़ते हैं
    How To Read Plan & Profile (PNP) Profile Drawing प्लान और प्रोफाइल को कैसे पढ़ते हैं
    How To Read Plan & Profile (PNP) Profile Drawing प्लान और प्रोफाइल को कैसे पढ़ते हैं
    The plan set consists of construction drawings and specifications for each section of road or project. The four most common views of plans utilized by the ...
    The vehicle is usually tested on different road surfaces. These surfaces, with different textures and features, replicate different real-world roads with different road profile excitation frequencies and amplitudes. For example, the surfaces with bumps and positive and negative cleats are used to study low frequency ride performance when the tire is subjected to larger excitation inputs. Another example of a road surface commonly used is a coarse asphalt paved surface. Similar to the described indoor test set-up, the coarse surface and aggregates contents and types dictate the excitation frequency and amplitude.. Usually based on the design objectives, different asphalt surfaces with different properties are used to characterize how a tire filters this road excitation input and how the resultants of the in-cabin structural noise and vibrations are measured. Later in the chapters of this book, it will be shown that the tire is effective in filtering these mid frequency road inputs. However, if a tire is not well designed, the tire can amplify the road excitation inputs at its resonance frequencies such as the tire cavity mode. This can even lead to more complicated scenarios if there is a coupling between tire and vehicle component resonance modes.
    Another common road surface used for the outdoor tire evaluation is smooth pavement, for example, concrete or very smooth asphalt. The surface is used to test the tire airborne noise radiation and how the noise is perceived in-cabin. Other surfaces such as the surfaces with potholes, rain groove, and chopped surfaces are some other examples commonly used in the industry. Fig. 5.17 shows some examples of these surfaces and their layouts.
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