DESC:TITLE OF THE INVENTION

A VIBRATION PLATFORM SYSTEM

Technical Field of the Invention

[0001] Present invention relates to a vibration generating system for a multi axis test hardware and/or simulator.

Background of the Invention

[0002] Vibrating platforms are widely used to test hardware and simulators. The vibration platform, tests the hardware equipment to simulate the vibrations. Various kinds of hardware equipments such as electrical, mechanical, electronic apparatus being tested to meet its design specifications. To assure operational reliability and performance of such equipments, the equipments must be tested before actual use.

[0003] The equipments are simulated on various vibrational frequencies and amplitudes occur in six degrees of freedom such as liner movement along three perpendicular axes which are XYZ coordinate systems and rotation about these three axes. This is relative to the vibration conditions actually experienced by the equipment. However, the equipment provides vibration in multi axis require complex control mechanism to minimize cross coupling of motion in the various axes and cumbersome torque resisting equipment to restrict the rotation about the axes of vibration.

[0004] Prior art U.S. Patent 5291787 discloses a triaxial vibrating platform particularly for helicopter simulators. It discloses a vibration testing platform which includes, on one side, a fastening point connected to three actuators placed in orthogonal directions to one another by link-rods hinged at both ends thereof and, on the other side, three fastening points, each point being connected to the ground by a link-rod hinged at both ends thereof. The two end link-rods are vertically oriented and the third one is horizontally oriented and placed in a transversal direction. Limitations of this patent are that it requires a complex control and number of actuators used are more.

[0005] Prior art U.S. Patent 5618995 discloses a vehicle vibration simulator to simulate occupant exposure to vibration in a motor vehicle. The seat actuator comprises a hydraulic actuator to provide one to six degrees of freedom of vibration to the seat portion. The steering column actuator comprising hydraulic actuators to provide one to four degrees of freedom of vibration to the steering column portion. The electronic controller or central processing unit is used to control the vehicle vibration simulator. Limitations of this patent are that it requires a complex control.

Brief Summary of the Invention

[0006] A principle object of the invention is to build a vibration system for multi axis test hardware and/or simulators.

[0007] According to an aspect of present invention, a vibrations generating system for a multi axis test hardware and/or simulator is disclosed. The system comprises of a base frame for arranging the assembly, a heave frame for reciprocating in Z-axis, a surge frame for reciprocating in Y-axis and a plurality of actuators having first and second ends.

[0008] In accordance with the first aspect of the present invention, the heave frame comprises a plurality of horizontal arms having first and second ends, a plurality of vertical arms and a heave drive shaft.

[0009] In accordance with the aspect of present invention, the surge frame comprises a plurality of vertical arms having first and second ends and a surge drive shaft and the actuator arms are connected to the heave and surge drive shafts and comprises an eccentric shaft at one end and connected to the heave drive shaft and surge shaft by the lever at another end to generate vibrations in multi axis.

[0010] In accordance with the aspect of present invention, one end of horizontal arm is connected to the heave frame and other end is connected to a shaft.

[0011] In accordance with the aspect of present invention, the two horizontal arms are connected to an end of the heave frame and the other two horizontal arms are connected to another end of the heave frame.

[0012] In accordance with the aspect of present invention, the heave drive shaft is placed at one end of heave frame, the heave frame and heave drive shaft are rigidly connected by one end of the horizontal arms.

[0013] In accordance with the aspect of present invention, four vertical arms are perpendicularly placed beside the horizontal arms and these are connected by a connecting link to form a parallel link mechanism.

[0014] In accordance with the aspect of present invention, an actuator arm is connected to the heave drive shaft.

[0015] In accordance with the aspect of present invention, one end of the vertical arms connected to the surge and another end connected to the heave frame.

[0016] In accordance with the aspect of present invention, the surge drive shaft is placed on one side of the surge frame and the actuator arm is connected to it.

Brief Description of the Drawings

[0017] Various objects and advantages of the present invention will become apparent to those skilled in the art upon reading the following detailed description of the preferred embodiments, in conjunction with the accompanying drawings, wherein like reference numerals have been used to designate like elements, and wherein

FIG. 1 illustrates a front perspective view depicting a multi axis test hardware and/or simulator according to the present invention.

FIG. 2 illustrates a rare perspective view depicting a multi axis test hardware and/or simulator according to the present invention.

FIG. 3 illustrates a top view depicting a multi axis test hardware and/or simulator according to the present invention.

Detailed Description of the Invention

[0018] The present invention is directed towards a vibration system for a multi axis test hardware and/or simulator. Referring to the drawings, wherein like reference numerals designate identical or corresponding systems, preferred embodiments of the present invention are described.

[0019] According to an exemplary embodiment of present invention, a vibrations generating system for a multi axis test hardware and/or simulator is disclosed. The system comprises of a base frame for arranging the assembly, a heave frame for reciprocating in Z-axis, a surge frame for reciprocating in Y-axis and a plurality of actuators having first and second ends.

[0020] In accordance with the exemplary embodiment of present invention, the heave frame comprises a plurality of horizontal arms having first and second ends, a plurality of vertical arms and a heave drive shaft.

[0021] In accordance with the exemplary embodiment of present invention, the surge frame comprises a plurality of vertical arms having first and second ends and a surge drive shaft and the actuator arms are connected to the heave and surge drive shafts and comprises an eccentric shaft at one end and connected to the heave drive shaft and surge shaft by the lever at another end to generate vibrations in multi axis.

[0022] In accordance with the exemplary embodiment of present invention, one end of horizontal arm is connected to the heave frame and other end is connected to a shaft.

[0023] In accordance with the exemplary embodiment of present invention, the two horizontal arms are connected to an end of the heave frame and the other two horizontal arms are connected to another end of the heave frame.

[0024] In accordance with the exemplary embodiment of present invention, the heave drive shaft is placed at one end of heave frame, the heave frame and heave drive shaft are rigidly connected by one end of the horizontal arms.

[0025] In accordance with the exemplary embodiment of present invention, four vertical arms are perpendicularly placed beside the horizontal arms and these are connected by a connecting link to form a parallel link mechanism.

[0026] In accordance with the exemplary embodiment of present invention, an actuator arm is connected to the heave drive shaft.

[0027] In accordance with the exemplary embodiment of present invention, one end of the vertical arms connected to the surge and another end connected to the heave frame.

[0028] In accordance with the exemplary embodiment of present invention, the surge drive shaft is placed on one side of the surge frame and the actuator arm is connected to it.

[0029] Referring to the drawings, FIG. 1 illustrates a front perspective view (100) depicting a multi axis hardware and/or simulator according to the present invention. The vibration generating system (100) comprises a base frame (102) for arranging the assembly, a heave frame (104) for reciprocating in Z-axis, a surge frame (106) for reciprocating in Y-axis and actuators (108).

[0030] FIG. 2 illustrates a rare perspective view depicting a multi axis test hardware and/or simulator according to the present invention. The heave frame (104) as shown in FIG. 1 comprises a four horizontal arms (202) having first and second ends, four vertical arms (204) and a heave drive shaft (206). One end of the horizontal arm (202) is connected to the heave frame (104) as shown in FIG. 1 and other end is connected to the heave drive shaft (206). The heave drive shaft (206) is placed at the one end of the heave frame (104). The two horizontal arms (202) are connected to an end of the heave frame (104) and the other two horizontal arms (202) are connected to another end of the heave frame (104). The heave frame (104) and heave drive shaft (206) are rigidly connected by one end of the horizontal arm (202). Four vertical arms (204) are perpendicularly placed beside the horizontal arm (202) and are connected by a connecting link (208) to form a parallel link mechanism. The actuator arm (210) is connected to the heave drive shaft (206).

[0031] FIG. 3 illustrates a top view (300) depicting a multi axis test hardware and/or simulator according to the present invention. The surge frame (106) as shown in FIG. 1 comprises a four vertical arms (302) having first and second ends and a surge drive shaft (304). One end of the vertical arm (302) is connected to the surge frame (106) and another end is connected to the heave frame (104). The surge drive shaft (304) is placed one side of the surge frame (106) and the actuator arm (306) is connected to it. The actuators (108) are connected to heave drive shaft (206) as shown in FIG. 2 and surge drive shaft (304) and are comprises eccentric shaft at one end and connected to the heave drive shaft (206) and surge drive shaft (304) by the lever at another end to generate vibrations in multi axis. ,CLAIMS:I/We claim:
1. A vibrations generating system for a multi axis test hardware and/or simulator, wherein the system comprises of:
a base frame for arranging the assembly;
a heave frame for reciprocating in Z-axis;
a surge frame for reciprocating in Y-axis;
a plurality of actuators having first and second ends;
the heave frame of the system, comprising:
a plurality of horizontal arms having first and second ends;
a plurality of vertical arms; and
a heave drive shaft;
the surge frame of the system, comprising:
a plurality of vertical arms having first and second ends; and
a surge drive shaft;
and
the actuator arms are connected to the heave and surge drive shafts and comprises an eccentric shaft at one end and connected to the heave drive shaft and surge shaft by the lever at another end to generate vibrations in multi axis.

2. The system according to claim 1, wherein, one end of a horizontal arm is connected to the heave frame and other end connected to a shaft.

3. The system according to claim 1, wherein two horizontal arms are connected to an end of the heave frame, wherein other two horizontal arms are connected to another end of the heave frame.

4. The system according to claim 1, wherein the heave drive shaft is placed at one end of the heave frame, wherein the heave frame and heave drive shaft are rigidly connected by one end of the horizontal arms.

5. The system according to claim 1, wherein four vertical arms are perpendicularly placed beside the horizontal arms and these are connected by a connecting link to form a parallel link mechanism.

6. The system according to claim 1, wherein an actuator arm is connected to the heave drive shaft.

7. The system according to claim 1, wherein one end of the vertical arms connected to the surge frame and another end connected to the heave frame.

8. The system according to claim 1, wherein the surge drive shaft is placed on one side of the surge frame and the actuator arm is connected to it.