CN109612631A - Engine moment inertia measuring device - Google Patents
Engine moment inertia measuring device Download PDFInfo
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- CN109612631A CN109612631A CN201811366183.3A CN201811366183A CN109612631A CN 109612631 A CN109612631 A CN 109612631A CN 201811366183 A CN201811366183 A CN 201811366183A CN 109612631 A CN109612631 A CN 109612631A
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- shaft
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- measuring device
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- pedestal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/10—Determining the moment of inertia
Abstract
The invention discloses a kind of engine moment inertia measuring devices, including body, driving mechanism, belt drive assembly and the connecting flange being connected with engine output end flange to be measured；Body includes two pedestals being adjacently positioned and three support bases；Driving mechanism includes the motor and speed reducer of transmission connection, and is placed on pedestal and support base；Belt drive assembly includes belt gear, belt tensioning mechanism and two shafts, two shafts are rotatably coupled by four bearings with two belt pulleys, belt tensioning mechanism, shaft one is fixedly and coaxially connected with output end of reducer, shaft two is fixed at connecting flange center simultaneously, under the action of belt drive assembly, the power that driving mechanism exports can be transmitted on engine output end flange to be measured, it, being capable of precise measurement engine moment inertia to be measured by recording the situation of change of engine output shaft revolving speed torque.Structure of the invention is compact convenient for disassembly and assembly, practical, convenient for promoting the use of.
Description
Technical field
The present invention relates to industrial test evaluation technology fields, specifically relate to a kind of for the revolution of in-site measurement engine
The device of the overall rotary inertia of movement parts.
Background technique
Currently, mostly being completed in ad hoc engine test room to the detection of engine performance with evaluation both at home and abroad, need
Special instrument, equipment and place, the test period is long, costly.No-load power measurement technology be one kind can quickly, conveniently, it is quasi-
The detection means of true ground engine evaluated performance can be detected its work shape without transporting engine back laboratory from workplace
Condition.
Engine moment inertia is both key parameter necessary to engine no-load measurement of power, is obtained also with transient speed
Motor instant torque, compression pressure without combustion are taken, calculates in cylinder and joins necessary to operating pressure, indicated mean effective pressure etc.
Number.Therefore, accurately obtaining engine moment inertia has important practical significance, provides skill for the scene assessment of engine performance
Art means realize the in-site measurement of engine performance index.
Engine moment inertia refers to that all revolution driving parts such as crankshaft, flywheel are used to the overall rotation of Crankshaft motion axis
Amount.The influence of the factors such as structure is complicated due to engine part, the distribution of density of material and foozle, it is used directly to calculate rotation
Amount is very difficult, measures often through test.Currently, the on-site measurement method of engine moment inertia, which mainly has, stops oily running down
Method, additional mass method and transient speed method etc., the measuring device after engineering, there is also many to ask during industrial application
Topic.When using stopping oily running down method, needing to measure engine and stopping friction torque and deceleration during oily running down, but engine rubs
It wipes torque to change with rotation speed change and organism temperature and change, and is difficult to accurate the real time measure, do not solved effectively temporarily.
The interference of the measurement accuracy of additional mass method Multiple factors such as uneven, inertia force, engine itself operating condition superiority and inferiority by revolving speed,
Its actual signal detection difficult, measure data precision is limited, and measurement error is larger.Transient speed method needs to measure in engine cylinder
Pressure is suitable only for the engine in included pressure test hole, and measurement accuracy is affected by engine speed height, is operated
It is cumbersome, it is not very practical.As it can be seen that existing measuring device, since influence factor is more, measurement accuracy and stability are not easy to protect
Card, has some limitations in practical engineering applications.
Publication No. 107782498A, the Chinese patent literature that publication date is on March 9th, 2018 disclose a kind of for surveying
The system and method for diesel engine equivalent rotary inertia is measured, system includes drive apparatus, small-sized speed regulating motor, motor control mould
Block, rotation speed measuring module, shaft power measuring module and data processing module；Drive apparatus both ends respectively with diesel engine output shaft
It is connected with small-sized speed regulating motor shaft；Motor control module turns according to what the transmission ratio and rotation speed measuring module of drive apparatus were fed back
Fast driving motor smooth start, speed regulation and braking；Shaft power measuring module accelerates its movement in dragging process by motor to diesel engine
The kinetic energy that assembly receives measures；Data processing module calculates diesel engine according to accelerator start-stop tachometer value and shaft work value
Machine equivalent rotary inertia；The invention passes through bavin in measurement acceleration time section by the way of speed regulating motor towing astern diesel engine
The kinetic energy that oil machine movement assembly receives, the accurate equivalent rotary inertia for calculating diesel engine have measurement accuracy height, equipment just
The advantages that taking, be easy to operate.
Using above patent document as the prior art of representative, drive apparatus is yielding coupling, in actual use process
In, transmission effect does not have stronger adaptability, shock and vibration cannot be effectively mitigated, simultaneously as yielding coupling
Elasticity cause its transmission quality and precision not accurate enough, to influence the measurement of engine moment inertia.
Summary of the invention
The present invention is directed to be directed to the problems such as measurement accuracy is low, stability is poor, bad adaptability present in the above-mentioned prior art,
A kind of engine moment inertia measuring device is provided, the present invention can effectively improve the measurement accuracy of engine moment inertia, stablize
Property it is good, have stronger adaptability.
The present invention is realized by using following technical proposals:
A kind of engine moment inertia measuring device, it is characterised in that: including body, driving mechanism, belt drive assembly and company
Acting flange；
The body includes pedestal and the support member for being mounted on the base end；
The driving mechanism includes motor and speed reducer, and driving mechanism is placed on pedestal；
The belt drive assembly includes the shaft of belt gear, belt tensioning mechanism and two parallel arrangements, the skin
Tape handler includes belt pulley one, belt pulley two and driving belt, and the belt pulley one is fixed in shaft one, described
Belt pulley two is fixed in shaft two, and belt pulley one is connect by driving belt with belt pulley two, by the power of shaft one
It is transmitted in shaft two；The belt tensioning mechanism is that two equal lengths are arranged symmetrically in two two sides of belt pulley one and belt pulley
Retractable support lever, the retractable support lever both ends are rotatably coupled with shaft one, shaft two respectively, pass through and adjust two
The length of root retractable support lever, tensile force needed for capable of guaranteeing driving belt and enough cornerites；
The connecting flange is fixed at one end of the shaft two, and connecting flange with shaft two and engine for that will export
End is fixedly and coaxially connected, and the power of shaft two is passed to engine output end.
The pedestal includes the pedestal A and pedestal B being adjacently positioned, and the connection and fractionation of two pedestals are realized by bolt,
There are four kidney slot for fixing, the support member includes support base one, support base two and branch for setting above the pedestal B
Seat three is supportted, is installed on the pedestal A.
The motor output end is connect with speed reducer drive, and motor base and the pedestal B pass through the kidney slot
Adjustable connection is carried out, the position of motor can be adjusted according to the actual situation, convenient for assembly and disassembly, below the speed reducer and bottom
Support base three is provided between seat A；
It is arranged on connecting flange there are four the kidney slot being evenly arranged, the kidney slot and engine output end is passed through by bolt
Flange fixation hole is fastenedly connected, and realizes that shaft two is fixedly and coaxially connected with engine output end, the power of shaft two is passed to
Engine output end.
One end of the shaft one is fixedly and coaxially connected by shaft coupling and the output end of reducer.
It is rotatably coupled at the top of the shaft one and the support base one and support base two, support base one and support base two
The two sides of two retractable support levers are respectively symmetrically placed on, realize the supporting role to the belt drive assembly.
The belt drive assembly further includes six bearings, respectively the fixed top for being nested in support base one, support base two
In the both ends of two retractable support levers, six bearings are rotatably coupled with shaft one and shaft two respectively.
The axis of the belt pulley one is overlapped with the center line of the driving mechanism, and mutually flat with the axis of belt pulley two
The symmetrical plane of row, two belt pulley races is overlapped, and avoids the occurrence of eccentric situation.
Two retractable support levers can be kept completely separate up and down, be convenient to mount and dismount, and support rod surface markers have bar length
Scale can adjust the length of retractable support lever according to graduation mark, keep and adjust the elasticity of driving belt, guarantee power
Transmission quality and precision.
The measuring device is applicable to Multiple Type engine, by adjusting position of the bolt on connecting flange kidney slot
It sets, realizes the connection with sizes specification engine output end flange, improve the adaptability of measuring device in a certain range.
It is reserved with sensor installation space in the measuring device structure, can be selected according to actual conditions such as measuring conditions suitable
The sensor of conjunction is mounted on suitable position.
Compared with prior art, the beneficial effects obtained by the present invention are as follows it is as follows:
1, engine moment inertia measuring device of the invention, by the output flange and measuring device of static engine to be measured
Connecting flange is fixedly connected, and then applies certain torque to engine by motor, speed reducer and belt drive assembly, to
Surveying engine follows measuring device to rotate, at this point, the consecutive variations of record engine output shaft revolving speed and torque at any time
Calculate engine moment inertia to be measured.It is not easy to measure to effectively prevent friction torque existing in the prior art, revolving speed
Unevenly, the technical problems such as data precision is limited, improve the measurement accuracy and stability of engine moment inertia.
2, engine moment inertia measuring device of the invention, using belt drive assembly come passing movement and power, phase
For other kinds of drive, belt transmission has stronger adaptability, can be according to the position of engine to be measured, height and layout
The factors such as space select suitable position of sound production measuring device, and belt has good elasticity, can effectively mitigate impact and vibration
It is dynamic.
3, engine moment inertia measuring device of the invention can by adjusting the length of two retractable support levers
The elasticity of belt is kept and adjusted, guarantees transmission quality and precision, and drive centre distancc can be adjusted according to the actual situation, is met
The measurement of engine moment inertia under different condition has biggish flexibility.
4, engine moment inertia measuring device of the invention, it is enough to belt offer using two retractable support levers
While tensile force, also make entire measuring device uniform force, the centering depth of parallelism is good, and functional reliability stability is high.
5, engine moment inertia measuring device of the invention, by adjusting position of the bolt on connecting flange kidney slot
It sets, can be connected with sizes specification engine output end flange, it is practical, convenient for promoting the use of.
6, engine moment inertia measuring device of the invention, can piecemeal disassembly and assembly, be convenient for carrying, and disassembly process
It is simple and efficient, convenient for the in-site measurement of engine moment inertia, technological means is provided for the scene assessment of engine performance.
Detailed description of the invention
Below in conjunction with specification drawings and specific embodiments, the present invention is described in further detail, in which:
Fig. 1 is the schematic perspective view of engine moment inertia measuring device of the invention；
Fig. 2 is the schematic elevation view of engine moment inertia measuring device of the invention；
Fig. 3 is the top view of the pedestal B in engine moment inertia measuring device of the invention；
Fig. 4 is the structural schematic diagram of the retractable support lever in engine moment inertia measuring device of the invention；
Fig. 5 is the cross-sectional view of engine moment inertia measuring device partial structurtes of the invention；
Fig. 6 is the side view of the connecting flange in engine moment inertia measuring device of the invention；
Appended drawing reference:
1, pedestal A, 2, pedestal B, 3, support base one, 4, support base two, 5, support base three, 6, support member, 7, body, 8, electronic
Machine, 9, speed reducer, 10, driving mechanism, 11, shaft one, 12, shaft two, 13, retractable support lever, 14, belt pulley one, 15, skin
Belt wheel two, 16, belt drive assembly, 17, connecting flange, 18, shaft coupling, 19, driving belt, 20, top chock, 21, hollow
Pipe, 22, locking nut one, 23, locking nut two, 24, threaded screw rod, 25, supporting upright post, 26, step, 27, first axle
It holds, 28, second bearing, the 29, first retaining ring, the 30, second retaining ring, 31, third retaining ring, the 32, first retainingf key, 33, second is fixed
Key, 34, sunk screw, 35, flange kidney slot, 36, connection bolt, 37, pedestal kidney slot.
Specific embodiment
Embodiment 1
In the description of the present invention, it is to be understood that, term " on ", "lower", "inner", "outside", "top", "bottom", " end " be " just
Regard ", " side view ", " vertical view ", the orientation or positional relationship of the instructions such as " symmetrical " to be based on the orientation or positional relationship shown in the drawings,
It is merely for convenience of description of the present invention and simplification of the description, is not considered as limiting the invention.
As a better embodiment of the invention, it discloses a kind of engine moment inertia measuring device, feature exists
In: including body 7, driving mechanism 10, belt drive assembly 16 and connecting flange 17；The body 7 includes pedestal and is installed on
The support member 6 of pedestal upper end；The driving mechanism 10 includes motor 8 and speed reducer 9, and driving mechanism 10 is placed on pedestal；
The belt drive assembly 16 includes the shaft of belt gear, belt tensioning mechanism and two parallel arrangements, the belt
Transmission mechanism includes belt pulley 1, belt pulley 2 15 and driving belt 19, and the belt pulley 1 is fixed at shaft one
On 11, the belt pulley 2 15 is fixed in shaft 2 12, and belt pulley 1 passes through driving belt 19 and belt pulley 2 15
Connection, the power of shaft 1 is transmitted in shaft 2 12；The belt tensioning mechanism is that two equal lengths are arranged symmetrically
Retractable support lever 13 in 2 15 two sides of belt pulley 1 and belt pulley, 13 both ends of retractable support lever respectively with shaft
One 11, shaft 2 12 is rotatably coupled, and by adjusting the length of two retractable support levers 13, can guarantee driving belt 19
Required tensile force and enough cornerites；The connecting flange 17 is fixed at one end of the shaft 2 12, connecting flange
17 with shaft 2 12 with engine output end for that will be fixedly and coaxially connected, and the power of shaft 2 12 is passed to engine output
End.
Embodiment 2
As preferred forms of the invention, as shown in Figures 1 to 6, engine moment inertia measuring device packet of the invention
Include body 7, driving mechanism 10, belt drive assembly 16 and connecting flange 17；
The body 7 includes pedestal A1, pedestal B2 and support member 6, and the pedestal A1 and the pedestal B2 are adjacently positioned, can lead to
Connection and fractionation that bolt realizes two pedestals are crossed, there are four kidney slot 37 for fixing, the branch for the setting of the upper end pedestal B2
Support part part 6 includes support base 1, support base 24 and support base 35, is installed on pedestal A1；
The driving mechanism 10 includes motor 8 and speed reducer 9, and 8 output end of motor and the speed reducer 9 transmission connect
It connects, 8 pedestal of motor and pedestal B2 carry out that connection is adjusted by the kidney slot 37, can adjust motor according to the actual situation
8 position is provided with support base 35 between 9 lower section of speed reducer and pedestal A1 convenient for assembly and disassembly；
The belt drive assembly 16 includes shaft 1, shaft 2 12, belt pulley 1, belt pulley 2 15, driving belt 19
And two retractable support levers 13, the belt pulley 1 are fixed in shaft 1, the fixation of belt pulley 2 15 is set
It sets in shaft 2 12, belt pulley 1 is connect by driving belt 19 with belt pulley 2 15, and the power of shaft 1 is transmitted
Onto shaft 2 12；Belt pulley 1 and 2 15 two sides of belt pulley are arranged symmetrically the retractable support lever 13 of two equal lengths,
13 both ends of retractable support lever are rotatably coupled with shaft 1, shaft 2 12 respectively, by adjusting two retractable supports
The length of bar 13, tensile force needed for capable of guaranteeing driving belt 19 and enough cornerites；
The connecting flange 17 is fixed at one end of the shaft 2 12, and there are four be evenly arranged for setting on connecting flange 17
Kidney slot 35, the kidney slot 35 is passed through by bolt 36 and is fastenedly connected with engine output end flange fixation hole, is realized turn
Axis 2 12 is fixedly and coaxially connected with engine output end, and the power of shaft 2 12 is passed to engine output end.
One end of the shaft 1 is fixedly and coaxially connected by shaft coupling 18 and 9 output end of speed reducer, shaft one
11 are rotatably coupled with the support base 1 and 24 top of support base, and support base 1 and support base 24 are respectively symmetrically placed
In the two sides of two retractable support levers 13, the supporting role to the belt drive assembly 16 is realized.
The axis of the belt pulley 1 is overlapped with the center line of the driving mechanism 10, and the axis with belt pulley 2 15
It is parallel to each other, the symmetrical plane of two belt pulley races is overlapped, and avoids the occurrence of eccentric situation.
As shown in Figure 1 and Figure 4, in the present embodiment, retractable support lever 13 is by top chock 20, hollow pipe 21, locking screw
Mother 1, locking nut 2 23, threaded screw rod 24, supporting upright post 25 and step 26 form, and the top chock 20 is under
Bearing block 26 is rotatably coupled with shaft 2 12, shaft 1 respectively by the bearing in being nested in, the supporting upright post 25
Top and bottom be fixedly connected respectively with threaded screw rod 24 and step 26, the top of the hollow pipe 21 and top chock
20 are fixedly connected.The outer surface of the threaded screw rod 24 is machined with external screw thread, and the diameter of threaded screw rod 24 is slightly less than hollow pipe 21
Internal diameter.In use, adjusting spiral shell by the locking nut 1 and locking nut 2 23 that are threadedly coupled in rotation thread lead screw 24
Line screw rod 24 extend into the length in hollow pipe 21, to adjust the length of whole support rod 13.24 outer surface of threaded screw rod mark
The scale that note has whole 13 bar of support rod long can guarantee two support pole length phases according to the length that graduation mark adjusts support rod 13
Etc. uniform forces, can intuitively read drive centre distancc, it is ensured that transmission quality and precision.Using the locking mode of double nut, knot
Structure is simple, easy to operate, high reliablity；And two parts up and down of whole support rod 13 can be completely separable, is convenient to mount and dismount, convenient for taking
Band.
As shown in Figure 1 and Figure 5, in the present embodiment, the top chock 20 and first bearing 27 of the retractable support lever 13
Outer ring is also coupled using interference fit using interference fit connection, 27 inner ring of first bearing with shaft 2 12, shaft 2 12
It is realized and is rotatably connected with two support rods 13 by first bearing 27 and second bearing 28.Shaft 2 12 is fixed by first
Key 32 and the second retainingf key 33 carry out circumferentially fixed connection with belt pulley 2 15, connecting flange 17 respectively.Shaft 2 12 is axial to be set
Multiple shoulders are set, in conjunction with the first retaining ring 29, the second retaining ring 30 and third retaining ring 31, realize the support rod 13 of two embedded bearings
With positioning and fixation of the belt pulley 2 15 in 2 12 axial direction of shaft, assembly is stablized, convenient disassembly.Shaft 2 12 is hollow shaft,
And it is machined with internal screw thread at one end.17 center of connecting flange is passed through by sunk screw 34 to be threadedly coupled with shaft 2 12, is realized
Axially position and fixation of the connecting flange 17 in shaft 2 12, when further improving connecting flange 17 and being connect with shaft 12
Concentricity.
As shown in fig. 6, this measuring device is applicable to Multiple Type engine in the present embodiment, by adjusting bolt 36
The connection with sizes specification engine output end flange is realized, in certain model in position on connecting flange kidney slot 35
The adaptability of this measuring device is improved in enclosing.
In the present embodiment, sensor installation space is reserved in this measuring device structure, when it is implemented, can be according to measurement
The suitable sensor of the actual conditions such as condition selection is mounted on suitable position.
The working principle of engine moment inertia measuring device of the invention are as follows:
The output flange of static engine to be measured is fixedly connected with this measuring device connecting flange 17, adjusts two
The length of root retractable support lever 13, tightening belt 19, by motor 8, speed reducer 9 and belt drive assembly 16 to engine
Apply certain torque, engine to be measured then follows measuring device to start turning from static, records engine output shaft revolving speed ni
And torque TiThe consecutive variations of t at any time can calculate engine moment inertia J to be measured.
When measurement, engine accelerates to a certain dynamic equilibrium revolving speed under the dragging of measuring device, from static, intercepts dynamic equilibrium
Preceding revolving speed niAnd torque TiMulti-group data, can calculate engine the acceleration time section t0Interior shaft power Pi:
By integral operation, the kinetic energy W that engine movements assembly to be measured obtains can be obtained:
Had according to law of conservation of energy:
Wherein: J-engine moment inertia
ω-engine accelerates terminal angular speed
N-engine accelerates terminal revolving speed；
According to three above relationship, it is known that engine moment inertia J to be measured are as follows:
The foregoing is merely illustrative of the preferred embodiments of the present invention, but embodiments of the present invention are not by the limit of above-described embodiment
System, any those skilled in the art, under the premise of not departing from design and the principle of the present invention made by equivalent variations and repair
Change, should belong to the scope of protection of the invention.
Claims (10)
1. a kind of engine moment inertia measuring device, it is characterised in that: including body (7), driving mechanism (10), belt transmission
Assembly (16) and connecting flange (17)；
The body (7) includes pedestal and the support member (6) for being mounted on the base end；
The driving mechanism (10) includes motor (8) and speed reducer (9), and driving mechanism (10) is placed on pedestal；
The belt drive assembly (16) includes the shaft of belt gear, belt tensioning mechanism and two parallel arrangements, institute
Stating belt gear includes belt pulley one (14), belt pulley two (15) and driving belt (19), and the belt pulley one (14) is solid
Fixed to be arranged in shaft one (11), the belt pulley two (15) is fixed in shaft two (12), and belt pulley one (14) passes through
Driving belt (19) is connect with belt pulley two (15), and the power of shaft one (11) is transmitted in shaft two (12)；The belt
Strainer is the retractable support lever that two equal lengths are arranged symmetrically in belt pulley one (14) and belt pulley two (15) two sides
(13), retractable support lever (13) both ends are rotatably coupled with shaft one (11), shaft two (12) respectively；
The connecting flange (17) is fixed at one end of the shaft two (12), and connecting flange (17) is used for will be with shaft two
(12) it is fixedly and coaxially connected with engine output end, the power of shaft two (12) is passed into engine output end.
2. a kind of engine moment inertia measuring device according to claim 1, it is characterised in that: the pedestal includes phase
The pedestal A(1 of neighbour's arrangement) and pedestal B(2), the connection and fractionation of two pedestals, the pedestal B(2 are realized by bolt) top
There are four kidney slots for fixing for setting, and the support member (6) includes support base one (3), support base two (4) and support base
Three (5) are installed in the pedestal A(1) on.
3. a kind of engine moment inertia measuring device according to claim 2, it is characterised in that: the motor (8)
Output end and speed reducer (9) are sequentially connected, and motor (8) pedestal is adjusted with the pedestal B(2) by the kidney slot
Connection, below the speed reducer (9) and the pedestal A(1) between be provided with support base three (5).
4. a kind of engine moment inertia measuring device according to claim 3, it is characterised in that: on connecting flange (17)
It is arranged there are four the kidney slot being evenly arranged, the kidney slot is passed through by bolt and engine output end flange fixation hole fastens
Connection.
5. a kind of engine moment inertia measuring device according to claim 1, it is characterised in that: the shaft one (11)
One end be fixedly and coaxially connected by shaft coupling (18) and the speed reducer (9) output end.
6. a kind of engine moment inertia measuring device according to claim 4, it is characterised in that: the shaft one (11)
It is rotatably coupled at the top of the support base one (3) and support base two (4), support base one (3) and support base two (4) are right respectively
Claim the two sides for being placed on two retractable support levers (13).
7. a kind of engine moment inertia measuring device according to claim 1, it is characterised in that: the belt transmission is total
It further include six bearings at (16), it is scalable to be nested in support base one (3), the top of support base two (4) and two for fixation respectively
In the both ends of support rod (13), six bearings are rotatably coupled with shaft one (11) and shaft two (12) respectively.
8. a kind of engine moment inertia measuring device according to claim 1, it is characterised in that: the belt pulley one
(14) axis is overlapped with the center line of the driving mechanism (10), and is parallel to each other with the axis of belt pulley two (15), two skins
The symmetrical plane of belt wheel race is overlapped.
9. a kind of engine moment inertia measuring device according to claim 1, it is characterised in that: the retractable supports
The scale that bar (13) surface markers have bar long.
10. a kind of engine moment inertia measuring device according to claim 1, it is characterised in that: measuring device structure
On be reserved with sensor installation space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811366183.3A CN109612631B (en) | 2018-11-16 | 2018-11-16 | Engine rotational inertia measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811366183.3A CN109612631B (en) | 2018-11-16 | 2018-11-16 | Engine rotational inertia measuring device |
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| CN109612631A true CN109612631A (en) | 2019-04-12 |
| CN109612631B CN109612631B (en) | 2021-06-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092005A (en) * | 2021-03-26 | 2021-07-09 | 中国船舶工业集团公司第七0八研究所 | Method for testing and determining underwater rotational inertia of ship propeller rotor and application |
| CN113432785A (en) * | 2021-06-01 | 2021-09-24 | 中国航空工业集团公司沈阳飞机设计研究所 | Method for measuring rotational inertia of aero-engine under unloaded condition |
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