SU1285113A1 - Method of determining dynamic characteristics of soils and pneumatic wheels - Google Patents
Method of determining dynamic characteristics of soils and pneumatic wheels Download PDFInfo
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- SU1285113A1 SU1285113A1 SU853936176A SU3936176A SU1285113A1 SU 1285113 A1 SU1285113 A1 SU 1285113A1 SU 853936176 A SU853936176 A SU 853936176A SU 3936176 A SU3936176 A SU 3936176A SU 1285113 A1 SU1285113 A1 SU 1285113A1
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- USSR - Soviet Union
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- soil
- pneumatic
- soils
- dynamic characteristics
- pneumatic wheels
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
Изобретение относитс к измерению механических свойств почв и пневмоколес и может быть использовано при проектировании транспортных средств. С целью повышени точности и сокращени трудозатрат , одновременно определ ют собственную частоту и коэффициент затухани системы пневмоколесо-почва и коэффициент затухани почвы. 1 ил.The invention relates to the measurement of the mechanical properties of soils and pneumatic wheels and can be used in the design of vehicles. In order to increase accuracy and reduce labor costs, the natural frequency and attenuation coefficient of the pneumatic-soil system and the soil attenuation coefficient are simultaneously determined. 1 il.
Description
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Изобретение относитс к измерению механических свойств почв и пневмоколес и может быть использовано при проектировании транспортных средств.The invention relates to the measurement of the mechanical properties of soils and pneumatic wheels and can be used in the design of vehicles.
Целью изобретени вл етс повышение точности и сокращение трудозатрат.The aim of the invention is to increase accuracy and reduce labor costs.
На , чертеже изображено устройство дл реализации способа.The drawing shows a device for implementing the method.
Устройство дл реализации способа состоит из пневмоколеса 1, оси 2, пневмоко- леса, прибора 3 дл замера колебаний системы пневмоколесо-почва, прибора 4 дл замера давлений на почву и прибора 5 дл замера колебаний почвы, размещенного в почве соосно с прибором 4.A device for implementing the method consists of a pneumatic wheel 1, axis 2, a pneumatic belt, a device 3 for measuring vibrations of the pneumatic wheel-soil system, a device 4 for measuring soil pressure and a device 5 for measuring soil vibrations located in the soil coaxially with the device 4.
Способ определени динамическихThe way to determine dynamic
свойств почв и пневмоколес осуп ествл ет- с следующим образом.soil properties and pneumowheels imperfections are as follows.
Устанавливают на почву пневмоколесо 1 с измерительным прибором 3 на оси 2 колеса . Предварительно в почве размещают измерительные приборы 4 и 5. Затем осуществл ют единичную импульсную нагрузку посредством колеса 1 на почву, равную нагрузке в услови х эксплуатации мобильного средства с измерением собственных частот, коэффициентов затухани почвы и системы пневмоколесо - почва. Pneumatic wheel 1 is installed on the soil with a measuring device 3 on the axis 2 of the wheel. Measuring devices 4 and 5 are preliminarily placed in the soil. Then, a single impulse load is carried out by means of wheel 1 on the soil, equal to the load under the operating conditions of the mobile device, with the measurement of natural frequencies, soil attenuation coefficients and the pneumatic wheel-soil system.
Коэффициент упругости (Сп)и деформировани (К) почвы определ ют по полученным значени м собственной частоты и коэффициента затухани , записанных на осциллограмме с помощью прибора 5, и вычисл ют по формулеThe coefficient of elasticity (Cn) and deformation (K) of the soil are determined from the obtained values of the natural frequency and attenuation coefficient recorded on the oscillogram using instrument 5, and are calculated by the formula
Cn 4n mfii; Kt3 4nm6nfii,Cn 4n mfii; Kt3 4nm6nfii,
где m- приведенна масса колеса, кг;where m is the given mass of the wheel, kg;
fn - собственна частота колебаний почвы , Гц;fn is the natural frequency of soil oscillations, Hz;
бп- коэффициент затухани почвы.bp - coefficient of soil attenuation.
Одновременно прибором 3 замер ют собственную частоту fc и коэффициент затухани бс колебательной системы пневмоколесо-почва . Определ ют коэффициент упругости (Сс) и демпфировани (Кс) колебательной системы пневмоколесо-почва:At the same time, device 3 measures its own frequency fc and attenuation coefficient bs of the oscillating system of the pneumatic wheel-soil. Determine the coefficient of elasticity (Cc) and damping (Cc) of the oscillating system of the pneumatic wheel-soil:
O Кс 4 т5с с.O Кс 4 т5с с.
На основании проведенных измерений определ ют динамические характеристики пневмоколеса - коэффициенты упругости ШИВЫ (Сш) и демпфировани (Кш)On the basis of the measurements made, the dynamic characteristics of the pneumatic wheel are determined — the elasticity coefficients of SHIVA (SS) and damping (CR).
Си,Si
К,ш K, w
. .
(бсУ -Т5Л(BSU -T5L
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU853936176A SU1285113A1 (en) | 1985-05-27 | 1985-05-27 | Method of determining dynamic characteristics of soils and pneumatic wheels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU853936176A SU1285113A1 (en) | 1985-05-27 | 1985-05-27 | Method of determining dynamic characteristics of soils and pneumatic wheels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1285113A1 true SU1285113A1 (en) | 1987-01-23 |
Family
ID=21191496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU853936176A SU1285113A1 (en) | 1985-05-27 | 1985-05-27 | Method of determining dynamic characteristics of soils and pneumatic wheels |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1285113A1 (en) |
-
1985
- 1985-05-27 SU SU853936176A patent/SU1285113A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Авторское свидетельство СССР № 992653, кл. F 02 D 1/00, 1981. * |
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