Question 1

Tebranish siljishi nima?

Accepted Answer

Tebranish siljishi — titrayotgan ob'ektning tinch holatidan bosib o'tgan umumiy masofasi. U odatda mikrometrlarda (μm) o'lchanadi va amplituda (0-dan maksimumgacha, markazdan eng katta og'ish) yoki ikki tomonlama amplituda (to'liq harakat diapazoni) ko'rinishida ifodalanishi mumkin. Siljish taxminan 10 Hz dan past past chastotali tebranishlarni baholashda eng foydali parametr hisoblanadi.

Question 2

Amplituda va ikki tomonlama amplituda siljishi o'rtasidagi farq nima?

Accepted Answer

Amplituda siljishi (0-peak) bir yo'nalishda markaziy tinch holatdan maksimal og'ishni o'lchaydi. Ikki tomonlama amplituda siljishi esa harakatning to'liq diapazonini — maksimal musbat og'ishdan maksimal manfiy og'ishgacha — o'lchaydi. Sinusoidal tebranish uchun ikki tomonlama amplituda amplitudaning aynan ikki baravariga teng. Siljish o'lchovlarida ko'proq ishlatiladigan parametr ikki tomonlama amplitudadir.

Question 3

Tebranish tezligini siljishga qanday aylantirish mumkin?

Accepted Answer

To convert velocity (mm/s RMS) to displacement (μm peak-to-peak), use the formula: d_pp = v_RMS × √2 × 1000 / (π × f), where f is the frequency in Hz. The √2 factor converts RMS to peak, and dividing by (π × f) is the integration from velocity to displacement. The factor 1000 converts mm to μm.

Question 4

Siljish, tezlik va tezlanish o'rtasidagi bog'liqlik qanday?

Accepted Answer

For sinusoidal vibration, displacement, velocity, and acceleration are mathematically related through frequency. Velocity is the time derivative of displacement (v = 2πf × d), and acceleration is the time derivative of velocity (a = 2πf × v). This means higher frequencies amplify acceleration relative to displacement, which is why displacement measurements are preferred at low frequencies and acceleration at high frequencies.

Question 5

Tebranishni monitoring qilishda tezlik o'rniga siljishdan qachon foydalanish kerak?

Accepted Answer

Siljish, odatda 10 Hz (600 RPM) dan past past chastotali tebranishlarni monitoring qilishda eng foydali parametr hisoblanadi. Past chastotalarda siljish katta bo'lsa ham, tezlik va tezlanish qiymatlari juda kichik bo'lib qoladi. Qog'oz fabrikasi valiklari, sovutish minorasi ventilyatorlari va porshenli kompressorlar kabi yirik sekin aylanadigan mashinalar ko'pincha siljishga asoslangan monitoring talab qiladi. Tezlik (mm/s RMS) 10–1000 Hz diapazonidagi umumiy mashinalar uchun afzal, tezlanish esa 1000 Hz dan yuqori chastotalarda eng maqbul hisoblanadi.

Parameter	Symbol	Unit	Best Range
Displacement	d	μm (mils)	Past chastota < 10 Hz
Velocity	v	mm/s (in/s)	10 – 1000 Hz
Acceleration	a	m/s² (g)	> 1000 Hz

Tebranish siljishi kalkulyatori

Results

Siljish (ikki tomonlama amplituda)

Ko'chish (0-cho'qqi)

Tezlanish (cho'qqi)

Amaliy Misol

Tebranish parametrlari — tezkor ma'lumotnoma